Magnetic Resonance Imaging

Cardiac magnetic resonance imaging MRI is used as both a functional and anatomical cardiac imaging test. It offers excellent soft tissue detail and the ability to quantify cardiac function. MRI scans can be performed with or without gadolinium contrast depending on what information is needed. Unlike computed tomography (CT), MRI does not use X-ray radiation, but patients with metal implants may have contraindications for MRI use because MR will heat up most metal objects. MRI exams usually take much longer than CT scans. How does MRI work? MR creates images by using powerful magnets to polarize hydrogen atoms in water (the body is made of of more than 80% water) so they face in one direction. A radiofrequency pulse is then used to ping these atoms, causing them to wobble, or resonate. The MRI coils detect this and computers can assemble images from the signals. Basic MRI scans will focus on the resonance of fat and water in two different sequences, which highlight and contrast different features in the anatomy.

New imaging protocols proposed to curb rise of cardiovascular infections
Eleven medical societies have signed on to a consensus statement aimed at standardizing imaging for suspected cardiovascular infections.
What does radiology have to do with climate change?
Kate Hanneman, MD, explains why many vendors and hospitals want to lower radiology's impact on the environment. "Taking steps to reduce the carbon footprint in healthcare isn’t just an opportunity," she said. "It’s also a responsibility."
Imaging group thrilled with new CPT codes for MBFR measurements
The Society for Cardiovascular Magnetic Resonance applauded two new CPT Category III codes for myocardial blood flow reserve (MBFR) assessments.
Key things to remember when creating a cardio-oncology program
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New expert guidelines: Start PHV evaluations with echocardiography, but other imaging modalities can provide value
New guidelines from the American Society of Echocardiography, made in collaboration with the Society for Cardiovascular Magnetic Resonance and Society of Cardiovascular Computed Tomography, represent an update of the group's original recommendations from 2009.

Deep learning in cardiovascular imaging: 4 key takeaways for cardiologists

More and more AI algorithms are being trained to learn, think and act like a human physician. What does this mean for the future of cardiovascular imaging as time goes on?

November 21, 2023

Multidisciplinary quality improvement initiative significantly improves on-time starts for cardiac MRI

Such delays can result in longer patient fasts, extended wait times, and poor synchronization of anesthesia induction, researchers detailed in JACR.

October 16, 2023

AFib recurrence during the 90-day blanking period after ablation—nothing serious or a sign of trouble?

Asking patients to use smartphone-powered ECG devices following catheter ablation procedures could be incredibly beneficial, according to new findings published in JACC: Clinical Electrophysiology.

September 27, 2023

HCM expert Sherif F. Nagueh, MD, FACC, FASE, professor of cardiology, Methodist DeBakey Heart and Vascular Center, explains the key points of HCM imaging. #ASE #HCM

How medical imaging helps cardiologists treat hypertrophic cardiomyopathy

Hypertrophic cardiomyopathy expert Sherif F. Nagueh, MD, examined imaging's role in treating this serious condition.

August 9, 2023

Marcelo DiCarli, MD, chief, division of nuclear medicine and molecular imaging, executive director for the cardiovascular imaging program, Brigham and Women's Hospital, discusses how artificial intelligence (AI) is impacting cardiac imaging.

What is the ROI for adopting AI in cardiac imaging?

Marcelo DiCarli, MD, and Rob Beanlands, MD, discussed the long-term value of investing in the development and implementation of AI technologies.

May 11, 2023

Janet Wei at Cedars-Sinai Hospital explains INOCA and MINOCA at ACC 2023.

Understanding INOCA and MINOCA epidemiology

Janet Wei, MD, associate medical director of the Biomedical Imaging Research Institute, and co-director of the stress echocardiography lab at Cedars-Sinai Hospital, explains the current information on the INOCA and MINOCA.

April 26, 2023

Advanced imaging does not always improve outcomes, data suggest

Although advanced imaging exams have proven benefits in defining disease severity, new data indicate that more sophisticated studies might not impact outcomes as much as previously thought.

March 13, 2023

COVID-19 vaccine vaccination myocarditis heart damage inflammation RSNA imaging radiology cardiology

Heart inflammation remains 2 months later in some patients with COVID-19 vaccine-related myocarditis

A team of cardiologists and radiologists collaborated on the study, using advanced imaging to take a closer look at the long-term impact of vaccination.

March 9, 2023

Around the web

Health Imaging

New imaging protocols proposed to curb rise of cardiovascular infections

Eleven medical societies have signed on to a consensus statement aimed at standardizing imaging for suspected cardiovascular infections.

Radiology Business

What does radiology have to do with climate change?

Kate Hanneman, MD, explains why many vendors and hospitals want to lower radiology's impact on the environment. "Taking steps to reduce the carbon footprint in healthcare isn’t just an opportunity," she said. "It’s also a responsibility."