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Ultrasound (0)

New frontiers in ultrasound-guided percutaneous interventions: combination of Smart Fusion and Smart Navigation techniques

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Advances in SMI and Shear Wave Applications

Advances in SMI and Shear Wave Applications

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Advances in SMI and Shear Wave Applications

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Interdisciplinary Ultrasound: Opening a Comprehensive Toolbox

Interdisciplinary Ultrasound: Opening a Comprehensive Toolbox

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Interdisciplinary Ultrasound: Opening a Comprehensive Toolbox

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Fusion and Navigation: Where to go in Interventional Radiology

Fusion and Navigation: Where to go in Interventional Radiology

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Fusion and Navigation: Where to go in Interventional Radiology

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Advanced Dynamic Flow Expands: The Diagnostic Capabilities of Fetal Echocardiography

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Exercise myocardial performance in adolescent athletes – A novel approach using 2D WMT and simultaneous oxygen consumption analysis

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The use of SMI in surveillance of endovascular aneurysm repair

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Wall Motion Tracking for Monitoring the Heart Health of Athletes

Wall Motion Tracking for Monitoring the Heart Health of Athletes

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Wall Motion Tracking for Monitoring the Heart Health of Athletes

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A Hybrid Viewer for Fusion of Coronary CT and Ultrasound 3D Wall Motion Tracking

A Hybrid Viewer for Fusion of Coronary CT and Ultrasound 3D Wall Motion Tracking

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A Hybrid Viewer for Fusion of Coronary CT and Ultrasound 3D Wall Motion Tracking

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Fusion of CT and Ultrasound Images for Improving the Evaluation of Calcified Coronary Arteries

Fusion of CT and Ultrasound Images for Improving the Evaluation of Calcified Coronary Arteries

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Fusion of CT and Ultrasound Images for Improving the Evaluation of Calcified Coronary Arteries

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Ultrasound Scanning Strategies for the Shoulder: A Live Demonstration Session

Ultrasound Scanning Strategies for the Shoulder: A Live Demonstration Session

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Ultrasound Scanning Strategies for the Shoulder: A live demonstration session

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Superb Microvascular Ultrasound Imaging (SMI): better visualization of low-grade inflammation of joints and tendons

Superb Microvascular Ultrasound Imaging (SMI): better visualization of low-grade inflammation of joints and tendons

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Superb Microvascular Ultrasound Imaging (SMI): better visualization of low-grade inflammation of joints and tendons

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Superb Micro-Vascular Imaging – A new tool for the sports physician

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In the past decade there has been an explosion in the use of diagnostic ultrasound by sports medicine practitioners, predominantly physicians / surgeons but also the allied professionals such as physiotherapists.

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Superb Micro-Vascular Imaging (SMI) in the analysis of fetoplacental microvascular blood flow

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Ultrasound monitoring of pregnancy is based on standardised 2D examination of the fetus and associated structures in each trimester of pregnancy.

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Elastography – improved detection and characterization

Elastography – improved detection and characterization

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Lunch Symposium at the ECR congress 2015 in Vienna, Austria, sponsored by Toshiba Medical Systems Europe. In this video presentation Prof. Dr. Vito Cantisani talks about “Elastography – improved detection and characterization”.

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Advancements in ultrasound-guided biopsy and treatment

Advancements in ultrasound-guided biopsy and treatment

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Lunch Symposium at the ECR congress 2015 in Vienna, Austria, sponsored by Toshiba Medical Systems Europe. In this video presentation Prof. Afshin Gangi talks about “Advancements in ultrasound-guided biopsy and treatment”.

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Advanced ultrasound applications for multidisciplinary use

Advanced ultrasound applications for multidisciplinary use

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Lunch Symposium at the ECR congress 2015 in Vienna, Austria, sponsored by Toshiba Medical Systems Europe. In this video presentation Prof. Dr. Thomas Fischer talks about “Advanced ultrasound applications for multidisciplinary use”.

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Seeing the Unseen – New Techniques in Vascular Imaging

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Superb Micro-Vascular Imaging (SMI) is a new Doppler technique allowing the non-contrast-enhanced visualization of minute vessels with slow blood flow velocity. By providing a tool to evaluate tumor vessel shape and density SMI facilitates the diagnosis and differentiation of lesions in any organ.

The technology can also be used for chemotherapy follow-up, for monitoring inflammatory activity in diseases such as colitis or Crohn’s disease and for obtaining dynamic flow images in CEUS.

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Approaches to Liver Tumors

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Shear wave elastography (SWE), which quantifies and maps the propagation velocities of shear waves, is employed for the differential diagnosis of diffuse liver diseases and liver tumors.

More recently SWE has been used for assessing the effects of IRE, a newly developed local treatment technique in which high-voltage current is applied to create irreversible perforations in the cell membrane leading to cell death.

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Approaches to the Diagnosis of Liver Fibrosis

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Shear wave elastography (SWE) is applied to assess liver stiffness. A helpful feature of the Toshiba SWE package is the contour display mode which shows whether the shear waves move properly through the tissue, allowing the reliability of the data obtained in deeper tissue regions to be verified.

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MicroPure – a New Technology in Clinical Breast Care

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MicroPure is an imaging technology developed to support early breast cancer detection by visualizing microcalcifications. The present study confirmed that the resolution of MicroPure is comparable to that of a standard X-ray mammography and that it facilitates targeted biopsy.

The study further indicates the potential value of MicroPure of detecting pre-clinical breast cancer.

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Initial experience with a novel microvascular flow imaging technique

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SMI, a Doppler technique developed by Toshiba Medical Systems, removes motion artefacts while visualizing low velocity blood flow in microscopic vessels and maintaining very high frame rates. In the present study, SMI consistently showed more detailed flow with better vessel continuity and smaller branches than CDI and PDI.

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Follow-up of aortic dissection with CEUS, Smart Fusion and Fly Thru – A case report

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Aortic dissection patients require regular follow-up. Contrast-enhanced ultrasound (CEUS) combined with image fusion and 3D reconstruction provides a radiation-free and less expensive alternative to CTA and MRA.

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Seeing the Unseen

Seeing the Unseen

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In this session, the clinical experience of Superb microflow imaging (SMI), which is the novel application of Aplio 500 from Toshiba, is discussed. SMI is a unique ultrasound Doppler imaging employing multi-dimensional filter that makes it possible to depict minute vessels with slow velocity, without using contrast agents. In other words, the advantages of SMI are; 1.high frame rate, 2. high sensitivity, 3. high resolution, and 4. less motion artifact.

Therefore, SMI is useful in various situations encountered in daily practice. The evaluation of the density and the shape of tumor vessels with SMI help us diagnose and differentiate tumorous lesions and also could be the non-invasive modality for the assessment of therapeutic effect of chemotherapy. Since SMI clearly visualizes minute vessels, it can also be used to evaluate the disease activity in inflammatory disorders, even in bowel inflammation such as ulcerative colitis, Crohn’s disease, and so forth. Furthermore, the diagnosis of organ ischemia can be done accurately with SMI, which is expressed as the focal defect of minute vessels in a real-time fashion, with high spatial resolution. In addition, SMI provides more sensitive view of minute vessels after the injection of contrast agent, which helps us to obtain the sustained dynamic image of microflow even after the first pass of the contrast agent.In conclusion, SMI, which provides the dynamic image of microvessels, is an essential tool for the diagnosis and the evaluation of various clinical conditions.

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Abdominal and high-frequency ultrasound imaging

Abdominal and high-frequency ultrasound imaging

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This talk will encompass the latest technological developments of the Aplio 500 with particular focus on a few advanced applications for abdominal and small parts ultrasound. These newest developments include the improved visualisation of the microvasculature without the need for contrast and its potential clinical applications will be discussed.

There have also been significant improvement in specialist applications such as elastography and also improved sensitivity in high frequency contrast technology. The latter now also allows reliable detection of the sentinel lymph node and their clinical impact will be outlined and illustrated.

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Genitorurinary Ultrasound

Genitorurinary Ultrasound

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Prostate: Men with an elevated serum level of prostate-specific antigen (PSA) or suspicious findings on digital rectal examination (DRE) are examined by transrectal ultrasound (TRUS).

For histological confirmation and therapeutic plan-ning, ultrasound guided systematic biopsy of the prostate is performed. However, in a subgroup of patients with elevated PSA levels, no malignancy is detected by biopsy or up to four biopsies are performed before prostate cancer is detected. A negative biopsy therefore does not exclude prostate cancer.

In consequence, unnecessary biopsies with an increase of complications are performed in healthy men. Real-time MR/US image fusion may enhance cancer detection rates of TRUS-guided biopsies and contributes to lesion characterization by state-of-the-art US techniques. The study presented here for the first time compares state-of-the art US techniques after contrast medium administration with MRI and histology as the standard of reference.

Scrotum: Ultrasound is the imaging modality of choice for the examination of the scrotum. The propblem of tumour / haematoma misinterpretation can result in unnecessary orchiectomy. CEUS for the testis can be currently recom- mended for the differentiation between hypovascular and avascular lesions (benign).

Learning objects:
– To investigate whether multiparametric magnetic resonance imaging (MRI) allows lesion localization in prostate can-
cer in patients scheduled for MR/US fusion biopsy and whether the findings correlate with new ultrasound techniques
– Prostate lesions were classified on the basis of MRI and US (B-mode scan, power Doppler, elastography/TDI, CEUS)
– Targeted biopsies were performed in the MR/US fusionmode
– Indications for the use of CEUS in focal testicular lesions, secmental infartion, after trauma and abscess formation in severe epididymoorchitis.

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The clinical utility of SMI for assessing musculoskeletal inflammation: case study reports

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Superb Micro-Vascular Imaging (SMI) allows non-contrast-enhanced imaging of microvasculature and provides higher sensitivity and finer detail than conventional power Doppler and rivals that of contrast enhancement.

The present case studies show SMI’s great potential at identifying low-grade inflammation thus improving clinical diagnostics and clinical patient management.

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SMI – a new technique for the analysis of the microvascular tree in reactive and suspected malignant lymphadenopathy in advanced stages of malignant melanoma

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While vascularization is an important criterion in lymph node (LN) sonography, both color and power Doppler US and in many cases even CEUS visualize only the macrovascular architecture.

Superb Micro-Vascular Imaging (SMI) is a novel technology to image microvasculature.

In initial studies SMI provided diagnostically relevant information that had not been detected with conventional color and power Doppler, in particular with regard to small lesions, subcutaneous masses and structures in the region of the scar.

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Toshiba’s Superb Micro-vascular Imaging: A New Problem-Solving Tool in Pediatric Radiology

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Superb Micro-Vascular Imaging (SMI) is the latest in a series of technological advances in diagnostic ultrasound imaging from Toshiba, giving clinicians a more accurate and rapid diagnosis.

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Advances in 3D Speckle Tracking: Activation Imaging

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Activation Imaging is the first non-invasive 3D mechanical activation mapping tool. Its clinical applications include LV lead placement for CRT, mechanical activation for ablation and evaluation of the effects of cardiac pacing.

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Evaluation of pelvic floor muscle damage after childbirth by 3D/4D transperineal ultrasound

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3D/4D transperineal ultrasound is a useful tool to diagnose levator ani muscle (LAM) damage since this technique allows acquisition of multiplanar (mid-sagittal and axial plane) images.

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CEUS of the kidney: New technology to patient management

CEUS of the kidney: New technology to patient management

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Presentation by Prof. Dr. Jean-Michel Correas (Paris, France) at the ECR 2013 in Viena: “CEUS of the kidney: From new technology to patient management improvement”.

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The Impact of Smart Fusion on the Diagnostic Outcome

The Impact of Smart Fusion on the Diagnostic Outcome

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Virtual Navigation – A New Modality in Perioperative Brain Tumor Imaging

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Smart Fusion is the virtual navigation by Toshiba integrated into the ultrasound system.

Once preoperatively acquired CT/MRI data are downloaded onto the ultrasound system, real-time US images and the corresponding CT/MRI images from the downloaded dataset can be used simultaneously.

In the present case, image fusion was used during brain tissue surgery: the major advantages were found to be easier planning of access trajectories as well as better orientation in the operative field due to the high-quality imaging using the ultrasound probe.

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Advanced Techniques in 4D Ultrasound: Fly Thru

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Fly Thru is a Toshiba technology to navigate through ducts and cavities in order to explore lesions and masses.

Clinical applications are manifold, e.g. in OB/GYN imaging the endometrium or investigating complex fetal anomalies such as cleft palate. In GI, Fly Thru presents itself for imaging the pancreatic duct, gall bladder etc.

The present article explores the potential of Fly Thru in several areas, inter alia virtual hysteroscopy, virtual ductography, portal venography, portal vein thrombosis, aorta and bile ducts.

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Advances in Ultrasound: Smart Fusion Technology

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Smart Fusion refers to the volume-to-volume fusion of previously acquired CT or MR images with real-time ultrasound.

The present article explores the diagnostic, interventional and therapeutic applications of this time-saving and cost-effective technology, e.g. the evaluation of multiple focal lesions, the performance of biopsies, the placement of catheters and shunts and tumor ablation. Moreover, tips are provided for using Smart Fusion effectively in clinical practice.

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Advances in transvaginal scanning modalities and their clinical application

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Technological advancements in terms of software and of transducer design have vastly improved spatial and contrast resolution and overall image quality of transvaginal ultrasound.

New ultrasound techniques add to the diagnostic capabilities of ultrasonography, increase diagnostic confidence and offer particular clinical, technical and economic benefits for the investigation of gynecological disease, fertility issues and early pregnancy development.

The present article provides an overview of 2D grey scale imaging, color Doppler, 3D (volumetric) imaging, 3D saline infusion sonohysterography, Fly Thru and real-time elastography.

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2D Wall Motion Tracking – A Powerful Analysis Tool in the Cardiovascular Package for the Aplio Series

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2D wall motion tracking (2D WMT) tracks the motion of the myocardium throughout the cardiac cycle based on 2D raw data speckle samples which provide quantitative information on velocity, strain and strain rate, global and regional displacement, rotation and rotation rate.

In addition, it supports the assessment of dyssynchrony in patients with LBBB and of patients undergoing CRT.

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Complementary mamma diagnostics to characterize focal breast lesions: a case-based overview

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Contemporary breast cancer diagnosis draws on several modalities and techniques which can complement each other.

In the present case high-quality B-mode imaging was the point of departure of tumor characterization, followed by tissue Doppler imaging (TDI), elastography with FLR determination, visualization of microcalcifications with MicroPure and volume sonography.

Ultrasound correlated very well with tomosynthesis and dynamic MRI. Studies report increased diagnostic specificity when breast ultrasound combines B-mode imaging with elastography.

Comparison and correlation of the Tsukuba score for elastography and BI-RADS criteria for mammography and B-mode image can potentially optimize standardization of sonoelastography examinations.

Premium ultrasound systems with applications for lesion characterization are required to evaluate and classify suspicious MRI findings

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The diagnostic value of contrast-enhanced ultrasound in the management of HCC

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Contrast-enhanced ultrasound (CEUS) visualizes vascularity of hepatocellular carcinoma (HCC) to facilitate differential diagnosis.

Being a dynamic real-time procedure, CEUS reflects wash-in and perfusion phases with high frame rates and outstanding spatial resolution and with a sensitivity of up to 91 % and a specificity of up to 92% depending on operator experience.

Moreover, CEUS-assisted biopsy highlights the viable region of the tumor tissue improving the sampling results and CEUS plays a significant role in therapies, e. g. radiofrequency ablation (RFA) and percutaneous ethanol injection (PEI) and follow-up, e.g. visualization of post-ablation tumor necrosis.

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Ultrasound for Detection of High Altitude Pulmonary Edema – The APEX 3 study

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The present study confirmed previous research that the number of lung comets and the developing of subclinical effusions increases with altitude and with time spent at altitude.

While ultrasound screening for lung comets is a useful approach to detect high-altitude pulmonary edema (HAPE), the modality has limitations as it cannot visualize the pleural surface under bony structures (30%).

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Ultrasound-guided breast-conserving surgery to improve surgical accuracy

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In a prospective, multicenter, randomized controlled study the efficacy of ultrasound-guided breast-conserving surgery in patients with palpable early-stage primary invasive breast cancer in terms of sparing of breast tissue, oncological margin status, cosmetic outcomes and quality of life was investigated.

Preliminary findings suggest that the Viamo is ideal for such imaging and that surgeons can acquire the necessary intraoperative imaging skills quickly.

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Ultrasound Ergonomics – A Practical Guide to Reducing the Risk of Musculoskeletal Disorders

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Musculoskeletal disorders (MSDs) are a significant problem in most occupational groups and those carrying out ultrasound scans on a regular basis are no exception.

This article provides a basic guide to the ergonomics of ultrasound work.

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Clinical Impact of New Tools for Interventional Ultrasound Applications

Clinical Impact of New Tools for Interventional Ultrasound Applications

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New Diagnostic Roads in Abdominal and Breast Imaging

New Diagnostic Roads in Abdominal and Breast Imaging

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Advanced Techniques in 3D Ultrasound: Fly Thru

Advanced Techniques in 3D Ultrasound: Fly Thru

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Edward G. Grant, MD, FACR, Professor and Chairman, Department of Radiology, USC Keck School of Medicine, discusses Fly Thru at RSNA 2011. Fly Thru displays structures similar to the way they would appear using a virtual endoscope. Fly Thru navigates through a selected volume automatically or manually.

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Transcutaneous real-time elastography of the abdomen: initial experiences

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While transcutaneous elastography had proven its worth in breast and thyroid examinations early on, insufficient penetration severely limited the value of the procedure in abdominal organs.

Toshiba’s transcutaneous real-time elastography application however comes with a convex transducer which helps to overcome this obstacle and enables the collection of reliable data to compare the elasticity of focal lesions and surrounding parenchyma.

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The Diagnostic Value Of Quantification Of Myocardial Deformation In The Assessment Of Patients With Coronary Artery Disease

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2D speckle-tracking echocardiography (2D-STE) as a component of an echocardiographic study is a fast, simple and accurate tool for assessment of regional and global myocardial function.

It measures LV global longitudinal strain which might provide better insight into myocardial contractility than LV ejection fraction, a major parameter of conventional echocardiography.

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The Role of CEUS in the Assessment of Renal Graft – Immediate and Long-Term Transplant Follow-Up

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Parametric Imaging is a simple and fast CEUS technique that offers high diagnostic yield in the early and long-term follow-up of renal grafts.

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Clinical examples of the use of contrast- enhanced ultrasound (CEUS) as a routine gastroenterological diagnostic tool

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CEUS in combination with modern probes provides relevant information in routine intestinal evaluation.

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Evaluation of the clinical impact of CEUS in the treatment of abdominal aneurysms

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A prospective study compared color Doppler ultrasound (CDUS), contrast-enhanced ultrasound (CEUS), computed tomography angiography (CTA) and magnetic resonance angiography (MRA) in the follow-up of endovascular aneurysm repair (EVAR).

The results indicate that CEUS is significantly more sensitive and specific than CDUS with regard to the identification of endoleaks and is thus a fast, cheap and effective procedure for EVAR follow-up which can be repeated frequently even bedside and in the immediate postoperative period.

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Quantitative Elastography – A useful ultrasound tool for differentiating thyroid lesions?

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Quantitative elastography, which measures tissue displacement and stiffness, has shown improved sensitivity and specificity over color Doppler with regard to the differentiation of thyroid nodules.

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2D Sonographic Evaluation of Fetal Facial Clefts

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While prenatal ultrasound detection of cleft lip and palate (CLP) is fairly unproblematic, the prenatal detection rate of isolated cleft palate (CP) approaches zero.

Because of its dome-shaped structure, the palate cannot be visualized in its entirety in 2D. Moreover, the surrounding osseous structure further complicates the evaluation due to artifacts. This article describes in detail a possible examination to diagnose CLP and CP in 2D ultrasound.

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Three-dimensional Wall Motion Tracking: A Novel Echocardiographic Method for the Assessment of Ventricular Volumes, Strain and Dyssynchrony

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Conventional selection criteria of congestive heart failure (CHF) patients to receive cardiac resynchronization therapy (CRT) have proven ineffective.

3D wall motion tracking (3D WMT) not only offers rapid acquisition of ventricular volumes and strains, but peak strain can also be used to determine the extent of ventricular dyssynchrony, an important predictive parameter for response to CRT. Thus 3D WMT, whose results agree excellently with cardiac MRI, has the potential to be a reliable tool for screening, selection and follow-up of CRT patients.

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Advanced Multi-Layer Speckle Strain Permits Transmural Myocardial Function Analysis in Health and Disease

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2D wall motion tracking (2D WMT) is an advancement to speckle tracking echocardiography (STE) which allows the measurement of strain within layer-specific regions of the myocardium.

By providing additional information on the heterogeneity of myocardial mechanics, 2D WMT multi-layer speckle tracking is useful with regard to the detection of preclinical changes in ischemia and other diseases that may originate in the subendocardial region.

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Computed Tomography (0)

The PURE ViSION CT Detector in Clinical Practice

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How we Use Iterative Reconstruction in Daily Routine

How we Use Iterative Reconstruction in Daily Routine

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How we Use Iterative Reconstruction in Daily Routine

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The Clinical Benefits of Iterative Reconstruction

The Clinical Benefits of Iterative Reconstruction

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The Clinical Benefits of Iterative Reconstruction

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FIRST, the latest in Iterative Reconstruction

FIRST, the latest in Iterative Reconstruction

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FIRST, the latest in Iterative Reconstruction

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Various Methods of Iterative Reconstruction

Various Methods of Iterative Reconstruction

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Various Methods of Iterative Reconstruction

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Changing IR Pathways in Angio – CT Using Infinix 4D CT

Changing IR Pathways in Angio – CT Using Infinix 4D CT

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Changing IR Pathways in Angio – CT Using Infinix 4D CT

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A Hybrid Viewer for Fusion of Coronary CT and Ultrasound 3D Wall Motion Tracking

A Hybrid Viewer for Fusion of Coronary CT and Ultrasound 3D Wall Motion Tracking

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A Hybrid Viewer for Fusion of Coronary CT and Ultrasound 3D Wall Motion Tracking

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Fusion of CT and Ultrasound Images for Improving the Evaluation of Calcified Coronary Arteries

Fusion of CT and Ultrasound Images for Improving the Evaluation of Calcified Coronary Arteries

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Fusion of CT and Ultrasound Images for Improving the Evaluation of Calcified Coronary Arteries

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Toshiba’s PURE ViSION Detector / Safer Imaging – Clearer Outcomes

Toshiba’s PURE ViSION Detector / Safer Imaging – Clearer Outcomes

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Safer imaging – Clearer outcomes, The Pure Vision

Safer imaging – Clearer outcomes, The Pure Vision

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Lunch Symposium at the ECR congress 2015 in Vienna, Austria, sponsored by Toshiba Medical Systems Europe. In this video presentation Jeffrey Hall talks about “Safer imaging – Clearer outcomes, The Pure Vision”.

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Widening the scope of clinical CT applications

Widening the scope of clinical CT applications

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Lunch Symposium at the ECR congress 2015 in Vienna, Austria, sponsored by Toshiba Medical Systems Europe. In this video presentation Prof. Dr. M. Prokop talks about “Widening the scope of clinical CT applications”.

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New detector technology in clinical practice

New detector technology in clinical practice

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Lunch Symposium at the ECR congress 2015 in Vienna, Austria, sponsored by Toshiba Medical Systems Europe. In this video presentation Dr. Russell Bull talks about “New detector technology in clinical practice”.

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Toshiba’s PURE ViSION Detector – Safer Imaging, Clearer Outcomes

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The new PUREVision detector technology achieves a 40% increase in light output and a 28% decrease in noise. Translated into patient safety this technology means less radiation and less contrast dose.

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Perfusion Imaging: The Future of CT?

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CT perfusion turns out to predict ischaemia similarly well as SPECT CT, but further optimisation seems warranted…(There are) increasing indications (for perfusion CT) in oncological imaging…to distinguish early between responders and non-responders to biologicals, …the new class of oncological drugs…other applications of CT perfusion will include treatment planning for head and neck tumours, lungs, kidneys and tumour differentiation.

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Coronary subtraction – improving evaluation of calcified coronary arteries in CT

Coronary subtraction – improving evaluation of calcified coronary arteries in CT

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In this video presentation Dr. A. Hidalgo (department of Radiology, Creu Blanca Hospital, Barcelona, Spain) is sharing his experience about ‘Coronary subtraction – improving evaluation of calcified coronary arteries in CT’.

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Myocard perfusion in clincal practice

Myocard perfusion in clincal practice

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In this video presentation Dr. J. Linde (Department of Radiology, Rigshopitalet, Copenhagen, Denmark) is sharing his experience about ‘Myocard perfusion in clinical practice’.

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Ultra low dose CTA – how low can you go

Ultra low dose CTA – how low can you go

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In this video presentation Dr. O. Ghekiere (Department of Radiology, Cliniques CHC St-Joseph Liège, Belgium) is sharing his experience about ‘Ultra low dose CTA – how low can you go’.

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A new reconstruction algorithm

A new reconstruction algorithm

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Metallic hardware is commonly used in orthopedic surgery for osteosynthesis, reconstructive surgery and arthroplasty. CT is the imaging method of choice for the evaluation of the periprosthetic bone and the metal implants 1,2. It allows the diagnosis of important post-operative complications such as prosthetic loosening, polyethylene wearing and hardware fractures.

Although less frequent than bone and metal hardware complications, post-operative soft tissue lesions can occur 3. Soft tissue complications may lead to significant disability and may necessitate specific patient management, making the diagnosis of these conditions essential. In the presence of metal however, the evaluation of the periprosthetic soft tissue is greatly hindered by metallic artifacts.

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Lung subtraction versus Dual Energy

Lung subtraction versus Dual Energy

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Pulmonary embolism with CT is a great challenge because small thrombi can easily be missed (many small arteries), differentiation partial volume making real embolus difficult. Furthermore, reduced lung perfusion almost invisible on standard CT.

In this lecture, we will look into Dual Energy and Subtraction imaging techniques to detect perfusion defects, to help localize small emboli, and to increase a prognostic value. Both advantages and down sides of each method will be analysed and presented.

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Coronary CT Angiography with reduced radiation dose using the Aquilion ONE ViSION Edition

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The Aquilion Vision Edition allows single beat coronary imaging in patients with heart rates up to 75 bpm (as compared to 65 bpm in previous generation scanners).

The present single center study has shown that with this increased temporal resolution a radiation dose reduction of 23% can be achieved in a large patient population.

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Auto Couch Height Positioning Compensation – Making SureExposure a Smarter Dose Reduction Tool

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Since mis-centering of the patient in the CT gantry can cause unexpected effects Toshiba developed a positioning compensation technology integrated in SUREExposure tube current modulation to ensure low radiation dose and consistent image quality even when the patient is not perfectly centered.

The feature is of particular benefit for pediatric patients who are more likely to be mis-centered.

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Whole Organ Perfusion of the Pancreas Using Aquilion ONE

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Aquilion One ViSION EDITION offers 16 cm volume coverage which allows perfusion scanning of entire organs such as the pancreas. Quantitative analysis of tissue microcirculation based on perfusion scanning can support the characterization of solid tumors and the evaluation of chemo-/radiotherapy response.

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Musculoskeletal Disorders: DSA-like Bone Subtraction with 320-Detector row CT

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DSA-like (digital subtraction angiography) bone subtraction is a CT technique that allows removal of calcifications and bone without affecting the visualization of adjacent contrast-enhanced structures.

It thus overcomes a limitation of conventional CT where the visualization of contrast enhancement in non-lytic bone lesions is practically impossible. DSA-like bone subtraction is useful in many clinical applications as it helps locate, characterize and stage malignant and benign bone lesions.

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Liver and Pancreatic perfusion using Aquilion ONE Vision

Liver and Pancreatic perfusion using Aquilion ONE Vision

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Liver and Pancreatic perfusion using Aquilion ONE Vision.

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Highest Diagnostic Image Quality at Lowest Dose with AIDR 3D

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Adaptive Iterative Dose Reduction (AIDR 3D) reduces noise in lower dose scans.

The author, based in a general CT department with a high volume cardiac CT service, reports significantly increased image quality at significantly lower dose and IV contrast with AIDR 3D.

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Diagnostic Accuracy of 320-Row CT and Challenging Case Scenarios

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320-row CTA allows for volumetric scanning which offers excellent diagnostic performance in the evaluation of CAD in a variety of patients.

Fast acquisition times at low contrast agent and radiation doses are major advantages. The technique is also suited for patients with elevated heart rates or unexpected arrhythmias.

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CT Perfusion Imaging: The Best of Both Worlds

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CT perfusion imaging with wide-area coverage has shown to be useful in the study of physiological effects of lung and pulmonary vascular disease.

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Contrast-to-Noise Ratio Improvements with AIDR 3D

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Reducing dose in CT is generally associated with increased image noise. AIDR 3D is an advanced iterative reconstruction algorithm which reduces noise and thus ensures adequate image quality in lower dose scans.

The present study looks at phantom images acquired with AIDR 3D for CT coronary angiography (CTCA).

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Cardiac Arrhythmia: Overcoming the unexpected

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Aquilion ONE is equipped with arrhythmia detection software which monitors the cardiac rhythm in real time and aborts the exposure if an arrhythmia is detected. The author reports that the robust arrhythmia detection software ensures confident and high-quality cardiac CTA.

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Volume CT-Perfusion Imaging

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Volume CT perfusion imaging (VCTPI) depicts tumor vascularization taking into account the dual blood supply of the liver via the portal vein and the hepatic artery thus allowing discrimination between tumor and normal liver tissue. It is a sensitive tool to assess early success TACE of HCC. Perfusion images can be acquired with an effective dose of 7.5 mSv.

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Astelion series Minimum energy, Maximum performance

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The “green” (ECO) addition of the Astelion series to the Toshiba CT scanners will open new possibilities in medical imaging. The Astelion (Figure 1) will be launched at the ECR 2012 in Vienna as “work in progress”.

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Ultra Helical Scanning – Fast Acquisition of CT Images

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Ultra-helical scanning describes a CT acquisition configuration of 100 mm x 0.5 resp. 160 x 0.5 mm (number of active detector rows x slice thickness). Due to overranging however radiation exposure during ultra-helical scanning increased to an unacceptable level.

The Toshiba Aquilion ONE is equipped with an active collimator which eliminates unnecessary radiation exposure caused by overranging.

The present study compares radiation dose of standard and ultra-helical scanning and shows that the latter is able to provide whole-body scanning of trauma patients in less time than standard helical acquisition.

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The Clinical Benefits of 320-Row CT in the Emergency Department

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Research indicates that cardiac CT due to its high sensitivity and specificity ought to be the first-line investigation for low/intermediate risk patients presenting with chest pain. The present article explores how cardiac CT can be integrated into the chest pain pathway of an emergency department.

Volume cardiac CT (VCCT) was performed and showed to be a robust and accurate test with a high negative predictive value. Moreover, VCCT identified life threatening pathologies other tests such as ETT, MIBI, stress MRI and invasive angiography would miss.

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Re-engineering the Patient Pathway

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Introducing Aquilion ONE into an emergency department can shorten time to diagnosis for chest pain patients and decrease the costs of hospitalization.

Computed tomography (CT) is now considered sufficiently robust and reliable to be used routinely for patients presenting with chest pain, a common symptom accounting for approximately 6 % of hospital emergencies.

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Initial Clinical Experience of Dual Energy Blended Images and Iodine Mapping Visualization

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Dual energy CT allows the creation of iodine maps to differentiate regions of vascularity after the scan.

Iodine maps can be used jointly with so-called blended images (which combine the better signal-to-noise ratio of high-energy scans with the good contrast of low-energy scans) to provide more clinically relevant information e.g. with regard to abdominal lesions.

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AIDR 3D – Reduces Dose and Simultaneously Improves Image Quality

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Toshiba’s dose reduction technology Adaptive Iterative Dose Reduction (AIDR 3D) can substantially reduce noise in CT images with almost no penalty in reconstruction speed.

The present article analyzes the use of AIDR 3D in case studies involving cardiac and pediatric imaging, dual energy scanning, the detection of renal cell carcinoma based on kidney perfusion and emergency whole body scanning of a trauma patient.

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Image Quality In Reduced Dose Coronary Ct Angiography

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Dose reduction of 80% during coronary CT angiography (CCTA) with prospective ECG-gating of patients with intermediate probability of coronary artery diseases (CAD) did not significantly affect image quality.

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Magnetic Resonance Imaging (0)

Susceptibility weighted imaging

Susceptibility weighted imaging

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Susceptibility weighted imaging

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Update on MRI biomarkers in acute stroke

Update on MRI biomarkers in acute stroke

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Update on MRI biomarkers in acute stroke

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Experiences with Titan 3T in Neuro and Vascular Imaging

Experiences with Titan 3T in Neuro and Vascular Imaging

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Experiences with Titan 3T in Neuro and Vascular Imaging

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Latest generation 3T MRI

Latest generation 3T MRI

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A 3T MRI system brings major advantages in neuroradiology compared to the 1.5T systems. Our initial experience with a latest generation 3T system, the Vantage Titan, indicates that the system provides increased patient comfort while offering significant quality and diagnostic benefits for several clinical applications.

In this presentation we will discuss our initial clinical experience with the Vantage Titan 3T system, including clinical cases of time-of-flight MRA for evaluation of the vasculature, isotropic 3D FLAIR in the assessment of glioma and multiple sclerosis. Moreover, flow-spoiled black blood (FSBB), a proprietary Toshiba technique, is explored for the evaluation of microvasculature (lenticulostriate arteries) in aging and dementia.

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Neuro-Microvascular Imaging at 1,5T Using the Flow Sensitive Black Blood Technique

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Flow-sensitive black blood imaging (FSBB) is a new non-invasive MR angiography technique to visualize cerebral microvasculature at 1.5T and 3T. It was successfully used a 1.5T to visualize the microvasculature of arterio-venous malformations (AVM), brain tumors and lenticulostrate arteries in healthy volunteers and stroke patients.

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Advanced neuroimaging at 3T with a 32ch head coil

Advanced neuroimaging at 3T with a 32ch head coil

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Advanced neuroimaging at 3T with a 32ch head coil.

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X-Ray (0)

Dose Reduction in Interventional Cardiac Electrophysiology

Dose Reduction in Interventional Cardiac Electrophysiology

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Bringing Innovation to Life: New Trends in Cardiac Imaging and Intervention. A Lunch Symposium at the ESC congress 2014 Barcelona, sponsored by Toshiba Medical Systems.

In this video presentation, Dr. Thomas Zerm talks about Dose Reduction in Interventional Cardiac Electrophysiology. A novel, innovative dose saving approach in Interventional Cardiac Electrophysiology.

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Dose Tracking System: A Paradigm Shift in Patient Dose Monitoring

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Millions of fluoroscopically-guided interventional (FGI) procedures are performed annually, offering tremendous benefit over alternative invasive surgical procedures, faster recovery times and resulting in improved patient outcomes and quality of life.

As both technology and clinical practice continue to rapidly advance, more and more diagnostic and curative procedures leverage and rely upon fluoroscopic imaging. The growing use and increasing complexity of FGI procedures have been accompanied by a renewed focus on the management and administration of ionizing radiation in order to ensure the highest safety for both patients and staff.

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Low-Dose Solution – The Ultimate Low-Dose Imaging Technology

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Reducing exposure levels during treatment of Arrhythmia and peripheral vascular intervention.
– Experience in the use of Spot Flouroscopy.

Although tremendous progress has recently been achieved in catheterization and treatment using radiation in the field of cardiovascular care, the issue of reducing the exposure dose for patients and healthcare personnel has yet to be resolved.

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