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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University of Minnesota team develops compact portable MRI

Curbside MRI: Experts are developing system small enough to fit in a pickup

Someday, getting an MRI exam could be as simple as having food delivered to your door—at least that is the hope of a group of experts at the University of Minnesota who are working on a compact system said to be small enough to sit in the bed of a truck.

FDA clears GE HealthCare MRI tool that can cut scan times by up to 83%

Sonic DL is powered by deep learning technology and targeted for use in cardiac MRI, the company said Monday.

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Whole-body MRI startup Ezra scores FDA clearance for AI tool to speed up scan times

The New York-based company now offers 30-minute “Full Body Flash” exams for $1,350, aimed at spotting disease before symptoms surface.

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Important factors that influence radiology practices’ patient experience scores

Mayo Clinic researchers administered their survey to 3,636 patients who underwent outpatient MRI exams, sharing the results in JACR. 

mergers and acquisitions M&A puzzle

Block Imaging spinning off mobile business after announcing its acquisition by Siemens, CommonSpirit

Cube Mobile Imaging, as it’s now called, will not be involved in the transaction, instead continuing to operate as a standalone, family-owned business

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RadNet revising 2023 financial projections, adding capacity amid ‘heavy demand’ for imaging

PET/CT saw the biggest gains, up almost 21% year-over-year compared to Q1 of 2022, with the group collecting $390M in revenue (up 14%). 

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RadNet, cancer care advocates praise passage of bills to boost imaging coverage

The policy changes forbid insurers from saddling patients with out-of-pocket costs for services associated with lung and breast cancer.

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Imaging giant RadNet earns FDA greenlight for AI-based prostate MRI software

“Quantib Prostate 3.0” offers a suite of tools to help radiologists and urologists improve the quality of their assessments.

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Around the web

Health Imaging
American College of Radiology announces significant expansion of Lung Cancer Screening Registry

The ACR hopes these changes, including the addition of diagnostic performance feedback, will help reduce the number of patients with incidental nodules lost to follow-up each year.

Health Imaging
AI reduces CT lung cancer screening workload by nearly 80%

And it can do so with almost 100% accuracy as a first reader, according to a new large-scale analysis.

Health Imaging
Nearly $800,000 settlement offered to family of man who died during MRI exam

The patient, who was being cared for in the ICU, was not accompanied or monitored by nursing staff during his exam, despite being sedated.