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.

healthcare money economics dollar stethoscope acquire merger

Mexico, not China, is biggest tariff concern among radiology vendors

If 25% tariffs go into effect, it could have a big impact on the cost of medical imaging and radiotherapy systems, with many manufacturing facilities in Mexico. 

MRI accident prompts questions on safety

Police investigating woman's 'suspicious' death during MRI exam

The woman's husband alleges the staff's negligence is what led to her untimely death.

Thumbnail

MRI study suggests an optimal time of day for evaluating glymphatic function

Inaccurate interpretations of glymphatic function could lead to incorrect diagnoses, researchers caution.

Thumbnail

Experts publish new guidance on the use of portable MRI exams

The checklist was created to walk researchers through every operational step of using portable MRI, from creating protocols to prepping patients, ensuring patient safety, handling incidental findings, data privacy and more. 

Medical imaging trends to watch in 2025

The healthcare market analysis firm Signify Research released a list of predictions in radiology its analysts expect to see in 2025. 

Female Medical Research Scientist Working with Brain Scans

New findings prompt experts to call for routine brain imaging of certain breast cancer patients

New research suggests more women with late-stage breast cancer may develop brain metastases than previously believed. 

cannabis use disorder marijuana joint weed smoking

MRI shows 'long-lasting' impact of cannabis use on brain regions linked to memory

These findings should serve as a reminder that marijuana, which is often touted as a safer and more natural alternative to alcohol, can cause harm. 

MRI technique analyzes composition of fat surrounding heart.

New MRI technique spots signs of heart disease before symptoms emerge

Researchers with the University of Virginia Arlington are working to develop a new way of analyzing fat content around the heart.