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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Can diffusion-weighted imaging supplement dynamic contrast-enhanced breast MRI?

Diffusion-weighted imaging (DWI) could help differentiate between benign and malignant tumors and predict tumor recurrence in breast cancer patients, according to research published Oct. 4 in Academic Radiology. The authors noted that DWI may also serve as a beneficial supplement to contrast-enhanced breast MRI.

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Siemens Healthineers names new VP of US MR business management

Siemens Healthineers announced this week that Jane Kilkenny is the company’s new vice president of U.S. magnetic resonance (MR) business management.

Minimally invasive autopsy combines MRI, CT, biopsy to improve postmortem diagnoses

A minimally invasive autopsy can detect a person’s cause of death as well as a conventional autopsy, according to a new study published by Radiology. They can also result in a more helpful postmortem diagnosis.

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New MRI research could help specialists diagnose brain diseases

Using MRI, researchers at the Washington University School of Medicine in St. Louis have devised a technique that reveals the type and number of brain cells present. They can also detect where cells have been lost through injury and disease.

Researchers see value in performing MRI scans following a TBI

Performing MRI scans within one month of a traumatic brain injury (TBI) can yield important information about the patient’s neurocognitive and psychiatric health, according to research published in Journal of Affective Disorders.

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Brain fMRI can help mend broken hearts

Some break-ups are just so traumatic, a person can’t even see the point of getting out of bed. But one musician looked to neuroscience and fMRI to help stop a heavy heart from keeping her down.

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Australian government allots $125M for MRI but opponents call it 'window dressing'

Australia’s federal government is allocating approximately $125 million ($175 million Australian) for MRI. Prime Minister Scott Morrison and Health Minister Greg Hunt both back the funding and believe it will result in improved diagnosis and treatment.

ASRT shares new white paper on MR safety

The American Society of Radiologic Technologists (ASRT) has published a new white paper, Radiologic Technologist Best Practices for MR Safety, designed to help MR technologists provide the safest patient care possible.

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