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.

Key trends in diagnostic heart testing: CT on the rise as some traditional techniques fall out of favor
The cardiac technologies clinicians use for CVD evaluations have changed significantly in recent years, according to a new analysis of CMS data. While some modalities are on the rise, others are being utilized much less than ever before.
New MRI technique spots signs of heart disease before symptoms emerge
Researchers with the University of Virginia Arlington are working to develop a new way of analyzing fat content around the heart.
Philips, Mayo Clinic using AI to improve cardiac MRI technology
The two companies aim to improve patient access to high-quality MRI scans by combining their artificial intelligence capabilities.
Abbott CGM sensors can now be worn during common imaging procedures
Sensors from the FreeStyle Libre 2 and Libre 3 continuous glucose monitoring systems can now be worn during X-rays, CT scans and MRI scans. The news represents a shift in policy from the FDA, one that came after the agency reviewed extensive testing data.
ASE shares new guideline on imaging patients with implanted devices
The new guideline details the best imaging strategies for a variety of clinical scenarios.

Researchers have developed and validated a new artificial intelligence (AI) model capable of producing four-chamber cardiac MR (CMR) images in seconds, publishing their findings in European Radiology Experimental.

AI creates accurate 4D heart scans in seconds

New data out of England provides cardiologists and radiologists with another reminder of AI's potential to transform healthcare.

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.

Kate Hanneman, MD, University Of Toronto, explains why vendors and hospitals are increasingly discussing lowing their carbon footprint by starting with radiology.

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."

Video interview with Marielle Scherrer-Crosbie, MD, Hospital of the University of Pennsylvania, who explains details of creating a cardio-oncology program, whoi should be involved and the role of cardiac imaging.

Key things to remember when creating a cardio-oncology program

Marielle Scherrer-Crosbie, MD, explains what is needed to create a cardio-oncology program, and the role played by cardiac imagers.

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.

Cardiology now has more than 100 FDA cleared AI algorithms

Cardiology makes up 10% of the 692 market-cleared clinical AI algorithms in the FDA’s latest update on the number of patient-facing AI now commercialized in the U.S. Experts share their thoughts on how it is being used.

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.

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.

Around the web

Cardiovascular Business

GE HealthCare launches new cardiac CT scanner with advanced AI capabilities

GE HealthCare designed the new-look Revolution Vibe CT scanner to help hospitals and health systems embrace CCTA and improve overall efficiency.

Cardiovascular Business

Bracco updates HeartSee coronary flow capacity software with new diagnostic features

Clinicians have been using HeartSee to diagnose and treat coronary artery disease since the technology first debuted back in 2018. These latest updates, set to roll out to existing users, are designed to improve diagnostic performance and user access.

Cardiovascular Business

Key trends in diagnostic heart testing: CT on the rise as some traditional techniques fall out of favor

The cardiac technologies clinicians use for CVD evaluations have changed significantly in recent years, according to a new analysis of CMS data. While some modalities are on the rise, others are being utilized much less than ever before.