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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Ultrasound isn't cutting it for diagnosing pediatric appendicitis, new data show

Instead, rapid MRI protocols may be the key to addressing diagnostic questions in cases of suspected appendicitis in kids, researchers contend.

Whole-body MRI provider starts offering AI-powered CCTA scans

Patients electing to undergo a whole-body MRI at one Florida facility are now able to undergo a CCTA exam at the same time. All results are interpreted by a cardiologist, and the patient meets with a physician for a one-on-one consultation.  

radiology clock alarm turnaround time efficiency

AI allows hospital to maintain MRI productivity with 1 fewer scanner

Oulu University Hospital lost one of its MRI after relocation and consolidation but was able to maintain output with the help of deep-learning technology. 

MRI accident prompts questions on safety

MRI safety guidelines may fall short for patients with implanted electrode cuffs

Researchers from the University of Houston caution that certain implanted electrode cuffs could cause inadvertent stimulation of the nerves during MRI scans. 

The new MRI contrast agent gadopiclenol, sold under the trade names Elucirem and Vueway by Bracco and Guerbet, used 50% less gadolinium that current MRI agents. #RSNA22 #RSNA

FDA approves expanded use of gadolinium-based imaging agent

Gadopiclenol is a macrocyclic high-relaxivity GBCA that contains less than half the amount of gadolinium that standard agents are formulated with.  

Combining PET and MRI data helps distinguish between LATE and Alzheimer's

Combining PET and MRI data may be key to differentiating new type of dementia

Limbic-predominant age-related TDP-43 encephalopathy, also known as LATE, was recently recognized as a type of dementia that occurs in older adults. It typically presents as memory-related cognitive decline.

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How second pregnancies change the brain

New imaging findings detail how women’s brains change during their second pregnancy, revealing the unique alterations in networks related to attention and response. 

GE HealthCare earns 3 new MRI FDA clearances

GE HealthCare nabs 3 notable MRI FDA clearances

On Feb. 19, the company announced the clearance of two new MRI systems and one artificial intelligence-enabled workflow platform.