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.

Helium shortage prompts new sense of urgency in the medical imaging community

In recent years the world’s supply of helium has raised heightened concerns, and some suppliers recently started to ration the nonrenewable element. 

Triplet pregnancy fetus in fetu: A rare case report

While FIF is an extremely rare condition—occurring in about one in 500,000 births—it is even more rare in triplet pregnancies.

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Depression treatments can change the brain’s infrastructure in just 6 weeks

The adult brain may be more malleable than scientists previously thought, according to new research presented at the 35th European College of Neuropsychopharmacology.

Medical center cleared in lawsuit over injurious MRI scan

A California hospital is not liable for negligence or elder abuse, both of which were civilly charged by a man who sustained second-degree burns while undergoing an MRI scan.

Psychiatry, neuroradiology researchers find imaging markers of inheritable depression

Children are at heightened risk of major clinical depression when at least one parent has a history of the disorder. New research shows depression markers appearing on structural and functional brain MRI ahead of symptoms in these “familial risk” offspring from infancy through early adulthood.

Brain scans reveal single doses of nicotine inhibiting estrogen production in women

On MRI and PET brain scans, women who were exposed to a small dose of nicotine showed altered activity in the thalamus region of the brain.

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What is the radiologist's role in variations of prostate cancer detection?

Prior studies have focused on radiologist performance rather than patient outcomes, leaving the topic of variable diagnoses and what factors impact them—race, ethnicity, age, biopsy type, etc.—open for debate. 

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MRI scans portray the significant impact of childhood neglect

“Here we show that that the opportunities that a child has in early life to learn and grow will impact not just their behavior but their actual brain development and brain structure for years to come,” authors of the new research shared.