Technology | March 23, 2010

New MRA Sequence Captures Four Image Contrasts in One Sequence

MRA of the brain.

March 23, 2010 - When imaging the brain, time is critical as vascular abnormalities can have a profound effect on patients’ lives if not diagnosed quickly. A new tool aims to help healthcare facilities diagnose disease with greater accuracy and speed when doing an magnetic resonance angiography study (MRA) on the brain.

A new MRA sequence available on Vantage Titan and Vantage Atlas MR systems, which are manufactured by Toshiba America Medical Systems.
The solution, Variable True Rate Angiography with Combined Encodings (V-TRACE), is designed to streamline MRA brain imaging by acquiring four image contrasts in one sequence, providing an imaging application for visualizing slow and fast flow vessels separately and together, as well as the brain tissue surrounding the vessels.

The V-TRACE MRA sequence enables imaging four contrasts in one sequence for greater visualization of blood vessels in the brain, particularly collateral vessels that can be difficult to see with standard MRA sequences.

V-TRACE MRA is a dual-echo 3D FE sequence in which the first echo is acquired using time-of-flight (TOF), and the second echo is acquired using flow sensitive black blood (FSBB). The sequence combines both techniques to produce MRA images that depict blood vessels with both high and low velocity. The sequence design reduces the specific absorption rate (SAR), a measurement of heat generated to the body during a MRI. The TOF data can be used to evaluate the brain parenchyma.

For more information: www.medical.toshiba.com

Related Content

Cardiac MR, also called cardiac MRI or heart MRI, can offer data above and beyond anatomical imaging.

Cardiac MR can offer data above and beyond anatomical imaging, which is the main reason why this system was installed at Baylor Scott White Heart Hospital in Dallas. The system is a dedicated heart MRI scanner.

Feature | Magnetic Resonance Imaging (MRI) | February 19, 2020 | Dave Fornell, Editor
Videos | Magnetic Resonance Imaging (MRI) | December 20, 2019
James Carr, M.D., chair of the Department of Radiology, Northwestern University, and incoming 2020 President of the...
Greater Left Ventricular Mass Increases Risk of Heart Failure
News | Magnetic Resonance Imaging (MRI) | October 21, 2019
Elevated left ventricular mass, known as left-ventricular hypertrophy, is a stronger predictor of coronary artery...
Heart MRI example. An example of a cardiac MRI exam showing perfusion defects in the heart muscle, amount of infarct and edema and a score for myocardial salvage which can help determine if revasularization will help restore heart function.

A example of a cardiac MRI exam showing perfusion defects in the heart muscle, amount of infarct and edema and a score for myocardial salvage, which can help determine if revasularization will restore heart function following a heart attack.

News | Magnetic Resonance Imaging (MRI) | October 07, 2019
October 7, 2019 – A recent study published in the New England Journal of Medicine supports the use of
Machine Learning Could Offer Faster, More Precise Cardiac MRI Scan Results
News | Magnetic Resonance Imaging (MRI) | September 25, 2019
Cardiac magnetic resonance imaging (MRI) analysis can be performed significantly faster with similar precision to...
Haojie Wang, M.D., director of advanced cardiovascular MRI and a member of the heart valve clinic at Baylor Scott White Heart Hospital, Dallas. His hospital installed a dedicated cardiac Siemens 1.5T MRI scanner in 2018 because MRI offers soft tissue visualization not available on CT or ultrasound.

Haojie Wang, M.D., director of advanced cardiovascular MRI and a member of the heart valve clinic at Baylor Scott White Heart Hospital, Dallas. His hospital installed a dedicated cardiac Siemens 1.5T MRI scanner in 2018 because MRI offers soft tissue visualization not available on CT or ultrasound.

Feature | Magnetic Resonance Imaging (MRI) | September 06, 2019 | Jeff Zagoudis, Associate Editor
Traditionally, computed tomography (CT) and ultrasound have been the workhorse imaging modalities in the world of car
Displacement comparison at the end-systolic frame and final frame

Displacement comparison at the end-systolic frame and final frame. The three patients (V6, V10, V16) with different left-ventricle walls are shown. Point-to-surface distance is a measure to estimate the distance of a point from the reference surface. Image courtesy of WMG, University of Warwick

News | Magnetic Resonance Imaging (MRI) | August 28, 2019
A new 3-D magnetic resonance imaging (MRI) computing technique developed by scientists in WMG at the University of...
FDA Issues Draft Guidance on Medical Device Safety in MRI Environment
News | Magnetic Resonance Imaging (MRI) | August 01, 2019 | Jeff Zagoudis, Associate Editor
The U.S. Food and Drug Administration (FDA) issued a new draft guidance titled Testing and Labeling Medical Devices for...
360 Photos | Magnetic Resonance Imaging (MRI) | May 17, 2019
This is a dedicated cardiac Siemens 1.5T MRI system installed at the...