Magnetic Resonance Imaging (MRI)

MRI creates images from the resonance created in hydrogen atoms when they are polerized and an electromegntic pulse is used to knock them off axis. This section includes MR analysis software, MRI scanners, gadolinium contrast agents, and related magnetic resonance accessories.

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...

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

August 28, 2019 — A new 3-D...

FDA Issues Draft Guidance on Medical Device Safety in MRI Environment
News | Magnetic Resonance Imaging (MRI) | August 01, 2019 | Jeff Zagoudis, Associate Editor

August 1, 2019 — The U.S. Food and Drug Administration (FDA) issued a new draft guidance titled...

With the advent and optimization of nuclear scintigraphy protocols using bone-avid radiotracers, cardiac amyloidosis caused by transthyretin protein (ATTR) can now be diagnosed noninvasively without a costly tissue biopsy. The radiotracer 99mTc-pyrophosphate (99mTc-PYP) binds to deposited ATTR amyloid fibrils in the myocardium and can be visualized using planar and SPECT imaging. The image shows how SPECT allows the reader to distinguish between blood pool activity and radiotracer uptake.

With the advent and optimization of nuclear scintigraphy protocols using bone-avid radiotracers, cardiac amyloidosis caused by transthyretin protein (ATTR) can now be diagnosed noninvasively without a costly tissue biopsy. The radiotracer 99mTc-pyrophosphate (99mTc-PYP) binds to deposited ATTR amyloid fibrils in the myocardium and can be visualized using planar and SPECT imaging. This is Figure 2, showing how SPECT imaging allows the reader to distinguish between blood pool activity (ventricular cavity, etc) and myocardial activity and identify regional myocardial differences in radiotracer uptake.

Feature | Nuclear Imaging | July 22, 2019 | Christopher A. Hanson M.D., and Jamieson M. Bourque M.D., MHS

Cardiac amyloidosis is a highly morbid and underdiagnosed infiltrative cardiomyopathy that is characterized by the...

FDA Approves Bayer's Gadavist Contrast for Cardiac MRI in Adult Coronary Artery Disease Patients
Technology | Contrast Media | July 15, 2019

July 15, 2019 — The U.S. Food and Drug Administration (FDA) has approved Gadavist injection for use in cardiac...

LVivo EF Comparable to MRI, Contrast Echo in Assessing Ejection Fraction
News | Cardiovascular Ultrasound | June 19, 2019

June 19, 2019 — DiA Imaging Analysis announced the presentation of two studies assessing the performance and...

A high-fidelity 3-D tractography of the left ventricle heart muscle fibers of a mouse

Figure 1. A high-fidelity 3-D tractography of the left ventricle heart muscle fibers of a mouse from Amsterdam Ph.D. researcher Gustav Strijkers.

News | Cardiac Imaging | June 07, 2019

June 7, 2019 — The Amsterdam University Medical Center has won MR Solutions’ Image of the Year 2019 award for the...

360 Photos | Magnetic Resonance Imaging (MRI) | May 17, 2019

This is a dedicated cardiac Siemens 1.5T MRI system installed at the...

Miami Cardiac and Vascular Institute Implements Philips Ingenia Ambition 1.5T MRI
News | Magnetic Resonance Imaging (MRI) | May 17, 2019

May 17, 2019 ― Miami Cardiac & Vascular Institute announced the implementation of Philips’ Ingenia Ambition 1.5T...

Netherlands Hospital to Install State-of-the-Art MRI Ablation Center
News | Ablation Systems | May 13, 2019

May 13, 2019 — Imricor announced the signing of a commercial agreement with the Haga Hospital in The Hague,...

Women With Coronary Artery Wall Thickness at Risk for Heart Disease
News | Womens Cardiovascular Health | April 25, 2019

April 25, 2019  – The thickness of the coronary artery wall as measured by...

Biotronik Launches Acticor and Rivacor ICD and CRT-D Devices in Europe
News | Cardiac Resynchronization Therapy Devices (CRT) | April 18, 2019

April 18, 2019 – Biotronik announced the European market release of what it calls the world’s smallest...

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