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 study questions links between autism and brain connectivity

Prior studies have hypothesized that reduced functional connectivity in the amygdala was more common among people on the spectrum.

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Some people may be predisposed to depression, MRI study shows

Specific brain connectivity patterns evident during childhood might make people more vulnerable to developing psychiatric disorders.

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Both diabetes and prediabetes accelerate brain aging, MRI analysis shows

The less control a person has over their diabetes, the greater the difference between chronological age and estimated brain age based on MRI markers, according to the study. 

The Society of Cardiovascular Magnetic Resonance (SCMR) recently launched HeartMRI.org, which provides includes a general information and videos for patients and referring physicians.

SCMR launches cardiac MRI educational video to assist referring physicians 

The Society of Cardiovascular Magnetic Resonance launched a new website aimed at patients and referring physicians that includes pamphlets and videos on cardiac MRI. 

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Brain enlargement may be linked to symptom severity in kids with autism spectrum disorder

Social and communication symptoms appear to be more severe in children who display brain overgrowth on MRI scans.

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MRI explosion leaves 3 injured, including 2 hospital staffers

The incident took place when a technician was “decommissioning the MRI machine,” according to local reports on the accident.

COVID-19 coronavirus mask smell

Loss of smell during COVID linked to structural, functional brain alterations

According to data shared by the CDC last year, around 34% of patients who contracted COVID between 2020 and 2023 reported losing their sense of smell. 

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Up to 25% of physically unresponsive patients are still conscious, imaging shows

The phenomenon, known as cognitive motor dissociation, might occur more often than previously believed.

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A closer look at how FDA's flurpiridaz approval will impact nuclear cardiology

The newly approved PET radiotracer is expected to improve patient care significantly. “We have been able to reach the pinnacle of myocardial perfusion imaging with flurpiridaz," one expert said.

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'This could be a paradigm shift': How PET with newly approved flurpiridaz compares to SPECT

GE HealthCare's flurpiridaz, the PET radiotracer that recently received FDA approval, offers several key benefits over SPECT. Jamshid Maddahi, MD, discussed the details in an exclusive interview. 

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Ultrafast myocardial contrast echocardiography shows early potential to evaluate CAD

Ultrafast MCE could go on to become a go-to treatment option for obstructive coronary artery disease, according to the authors of a new first-in-human clinical study.

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