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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Commercially available AI significantly improves prostate MRI report consistency

By reducing report variability, the software could help decrease unnecessary biopsies in patients with questionable lesions.

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Bilingual people have more efficient brains, imaging study shows

Researchers examined the brains of bilingual and monolingual people using fMRI, only to find improved communication between isolated regions in those who learn a second language at a young age.

long covid brainstem damage

Ultra-high field MRI implicates long COVID in brainstem damage

Researchers have used 7T MRI to demonstrate that former COVID-19 inpatients are susceptible to persistent brainstem abnormalities associated with long-haul COVID symptoms.

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Outdated manuals pose MRI safety risks for patients with medical implants

After reviewing years of data from its clinic, one institution discovered that issues with implant data integrity frequently put patients at risk. 

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GPT-4 as accurate as neurologists in predicting final diagnosis based on MRI reports

The large language model can also outperform other human providers, radiologists included, new study shows.

Novel imaging technique could be used to tailor glioblastoma treatment

It allows providers to quantify changes in tumor size throughout patients’ treatment in real-time, providing early indications of efficacy and enabling adjustments as needed.

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MRI-guided biopsy decisions halve the rate of clinically insignificant prostate cancer diagnoses

“This paper is the message to healthcare authorities around the world to look over recommendations for men."

Portable MRI system slashes the time it takes to image stroke patients

Experts are optimistic that the use of portable systems can increase accessibility to neuroimaging and efficiency in stroke care. 

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