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.

Hundreds of MRI units affected by FDA Class 1 recall
Failure to address these issues could "cause serious adverse health consequences or death," the U.S. Food and Drug Administration recently warned providers.
Imaging markers of brain frailty linked to functional outcomes in stroke patients
Such baseline neuroimaging markers could provide clues into how patients will respond to treatment, and thrombolysis in particular.
An imaging AI 'epilepsy detective' could help cure treatment-resistant seizures
The tool can identify small focal cortical dysplasia on imaging that is typically missed by radiologists, bottom-of-sulcus dysplasia in particular.
Whole-body MRI provider Prenuvo seeks to limit damages in high-profile malpractice case
Sean Clifford and his legal representatives first filed the lawsuit Sept. 24, 2024, in the New York State Supreme Court, contending a radiologist failed to spot signs of an impending stroke.
Repetitive head impact in soccer players increases risk of brain damage, MRI shows
What's more, the damage observed on imaging could play a role in deteriorating cognitive performance.

Hundreds of MRI units affected by FDA Class 1 recall

Failure to address these issues could "cause serious adverse health consequences or death," the U.S. Food and Drug Administration recently warned providers.

Ischemic stroke shown in CT scans. Image courtesy of RSNA

Imaging markers of brain frailty linked to functional outcomes in stroke patients

Such baseline neuroimaging markers could provide clues into how patients will respond to treatment, and thrombolysis in particular.

An imaging AI 'epilepsy detective' could help cure treatment-resistant seizures

The tool can identify small focal cortical dysplasia on imaging that is typically missed by radiologists, bottom-of-sulcus dysplasia in particular.

Whole-body MRI provider Prenuvo seeks to limit damages in high-profile malpractice case

Sean Clifford and his legal representatives first filed the lawsuit Sept. 24, 2024, in the New York State Supreme Court, contending a radiologist failed to spot signs of an impending stroke.

Repetitive head impact in soccer players increases risk of brain damage, MRI shows

What's more, the damage observed on imaging could play a role in deteriorating cognitive performance.

Researchers using 4D MRI technology to test artificial hearts.

4D MRI techniques could help advance the development of artificial hearts

Researchers recently used advanced 4D flow MRI to track blood in a pulsating artificial heart, revealing dynamics that closely mirror those of a healthy human organ.

Company building novel portable stroke MR imaging platform seeks investors

New Zealand-based Wellumio in January announced its expansion into the U.S., laying the groundwork for local clinical trials to test its device.

GE HealthCare to acquire Alzheimer’s imaging AI firm Icometrix

Founded in 2011 and based in Belgium, the AI firm offers the first software for automating brain assessments needed to administer disease therapies from Biogen and Eli Lilly.