Magnetic Resonance Imaging

Magnetic resonance imaging (MRI) is the gold standard imaging modality for soft tissues. It produces detail cross-sectional images of soft tissue and bone anatomy, including muscles, tendons, ligaments, brain and organs, without the use of ionizing radiation. In addition to orthopedic imaging, MRI is also used for heart, brain and breast. MRI uses gadolinium contrast in many exams to highlight tissues and blood vessels, which enhances images and offers better diagnostic quality. It can also be used in conjunction with PET 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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FDA issues update on MRI coil recall

In May, Philips alerted its customers to the safety concern, cautioning that its Sense XL Torso (1.5T and 3T) coils could overheat and cause patients to sustain serious burns.

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New MRI study contradicts prior research linking dementia with benzodiazepine use

There has long been speculation suggesting that chronic benzo consumption could be a precursor to conditions that deteriorate neurological function.

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Implications for radiology following the FDA’s approval of new Alzheimer’s treatment from Eli Lilly

Providers are required to obtain a recent baseline brain MRI prior to initiating treatment and individuals also must undergo scans prior to the second, third, fourth and seventh infusions. 
 

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How Massachusetts General increased outpatient MRI time slot capacity by 50%

Amid increasing volumes, the Boston institution in 2019 started designing a new standalone facility utilizing new designs and processes to serve more patients. 

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Cindy Crawford-backed startup Prenuvo launches clinical trial to assess impact of whole-body MRI

Led by radiologist Yosef Chodakiewitz, MD, Project Hercules aims to enroll 100,000 adults, with a focus on medically underserved populations. 

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Philips recalling MRI coils amid concern they could overheat and burn patients

The safety notice applies to the Sense XL 1.5T and 3T coils, which are 16-element, receive-only products used in imaging of the torso and abdomen.  

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Playing ping pong improves brain connectivity

New research highlights key MRI findings related to connectivity and white matter integrity in the brains of athletes taking part in competitive table tennis.

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MRI safety concerns prompt FDA to issue recall for series of ventilators

The Class I recall affects the ZOLL 731 Series Ventilator family, including the AEV, EMV+, and Eagle II models.

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