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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Radiologists must embrace low-field MRI or ‘we will be in trouble,’ expert says

The specialty needs to work together and address a number of issues surrounding the disruptive technology, Yale Director of MRI Services Jeffrey C. Weinreb, MD, argued.

Cooperation during pediatric MRIs improves with parental participation, study shows

Parent-assisted MRI scans improve imaging procedures and reduce associated costs, experts reported recently.

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Providers are requesting fewer preoperative MRIs for breast cancer patients

Female surgeons, in particular, are abiding by evidence-based guidelines, but a more selective approach is still needed among doctors.

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Are COVID mRNA vaccines a cause of myocarditis in adolescents? MRI findings hold clues

Scan data published in the American Journal of Roentgenology suggests radiologists must remain cognizant of the link between myocarditis and vaccines.

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Whole-body MRI paired with artificial intelligence detects Type 2 diabetes with no additional data

Scientists used machine learning to identify diabetes-related variables from nearly 2,400 T1-weighted, magnetic resonance imaging datasets. 

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MRI biomarkers less invasive, more accurate option for identifying deadly liver disease

The findings present positive news for patients who are looking to avoid the discomfort of a biopsy in the pursuit of a diagnosis, experts explained recently.

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Radiologists see potential to reduce GBCA administration with new synthetic MRI technique

Even though synthetic samples may not be perfect copies of original images, experts say they can act as a useful substitute for gadolinium-enhanced exams.

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Patient dies after oxygen tank is sucked into MRI machine

Police are investigating why the cylinder was brought into the imaging suite but believe the built-in air supply system may have been malfunctioning. 

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