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.

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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. 

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Researchers awarded $31M to study conduction system pacing among heart failure patients

“Once the study begins, it will likely be one of the largest heart pacing clinical trials happening in the world over the next few years," one specialist said. 

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Heart damage after COVID-19 vaccination extremely rare among adolescents

Vaccine-related myocarditis was seen in approximately 0.00005% of children between the ages of 12 and 15. All cases were mild, and the median length of stay at the hospital was three days. 

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Researchers receive $3.7M to attempt robotic heart surgery inside MRI scanner

The group—which includes engineers, cardiologist, radiologists and other specialists—will attempt to perform a robotic-controlled left atrial appendage occlusion (LAAO) on a patient inside an MRI scanner.

The Medtronic SelectSecure MRI SureScan Model 3830 cardiac lead already gained FDA approval for His-Bundle pacing back in 2018. Now, the lead is also approved for left bundle branch area pacing, providing users with another option when treating patients for bradycardia. According to Medtronic, this marks the first time the FDA has approved a device for this indication.

Medtronic cardiac lead the first to receive FDA approval for conduction system pacing

The company’s SelectSecure MRI SureScan Model 3830 cardiac lead already gained FDA approval for His-Bundle pacing back in 2018. Now, the lead is also approved for left bundle branch area pacing.

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Cardiologist compensation hits $622K, up 32% from 10 years ago

According to a new analysis from MedAxiom, an American College of Cardiology company, cardiologist compensation has nearly returned to where it was before the COVID-19 pandemic. The detailed report also examined new patient visits, cardiac imaging utilization and much more. 

This latest shortage involves dobutamine, an injectable medication often prescribed for advanced heart failure and cardiogenic shock. It is also a central component of dobutamine stress echocardiography (DSE), a test used to evaluate patients with severe aortic stenosis.

A new supply issue hits cardiology: 5 recommendations for cardiologists during the dobutamine shortage

The shortage could lead to significant issues for cardiologists. The American College of Cardiology provided some words of wisdom on the ongoing issue.  

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“We need an answer now”: Cardiologist awarded $2.3M to study cannabis use and heart health in people living with HIV

The four-year analysis will use cardiac MRI scans to closely monitor the heart health of people living with HIV who regularly use cannabis to treat their symptoms. 

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Around the web

Health Imaging
Use of AI opportunistic screening in CT for cardiovascular disease

Ron Blankstein, MD, professor of radiology, Harvard Medical School, explains the use of artificial intelligence to detect heart disease in non-cardiac CT exams.

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.

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