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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MRI uncovers clues that could help clinicians better understand schizophrenia

Thanks to functional MRI exams, experts recently gained new insight into mechanisms behind the “loosening of associations” commonly observed in individuals diagnosed with schizophrenia.

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Deep learning helps experts take advantage of 'rare' chance to study deadly tumor progression

Researchers from the University of Waterloo and the University of Toronto are collaborating to better understand how glioblastoma multiforme (GBM) advances when it is not treated.

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Radiology residents need more hands-on MRI education

Dedicating more time to MRI-specific training beyond standard curriculum improves radiology residents’ confidence and understanding of the modality. 

kid child pediatric MRI imaging

Number of kids needing sedation prior to imaging drastically drops following intervention

At one institution, the intervention resulted in an average cost savings of $139,367.80 per year.

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Biological ‘brain age’ could help pave the way for more personalized medicine

AI-powered analysis can now assess cognitive decline by noting gaps in chronological versus biological “brain age.”

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MRI findings linked with reinjury in professional athletes seeking return to play

These findings were consistently predictive of reinjury regardless of how well the athletes progressed during rehabilitation. 

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MRI study highlights how social media affects adolescent brain development

“These results suggest that habitual checking of social media in early adolescence may be longitudinally associated with changes in neural sensitivity to anticipation of social rewards and punishments, which could have implications for psychological adjustment,” experts of a new study recently suggested.

Regulatory nod granted to inhalable gas contrast for hyperpolarized lung MRI

The FDA has cleared Polarean Imaging’s xenon gas-based MRI contrast agent for evaluating pulmonary function in patients aged 12 years and up.

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