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 Can Improve Robotic-Assisted Prostate Surgery

Using MRI before surgery to treat prostate cancer can reduce complications such as incontinence and erectile dysfunction, according to researchers at University of California at Los Angeles.

MRI Can Spot Dyslexia Before Children Begin Learning to Read

Signs of dyslexia can show up on an MRI scan even before a child learns to read, according to researchers at Children’s Hospital Boston.

Next Generation MRI for Arms and Legs Reduces Stress

At Loyola Center for Health outside Chicago, Illinois, patients are treated with a powerful new MRI machine specifically designed for scanning the arms and legs, according to a report Monday in the Chicago Tribune.

Georgetown Researchers Find IMRT Self-Referral Widespread

Georgetown University researchers looking at the increased use of intensity modulated radiation therapy for prostate cancer found self-referral plays a large role in its escalating use.

Camera Capsule Uses MRI to Swim Like Submarine

Endoscopic capsule technology just got even closer to resembling the 1987 motion picture Innerspace about exploring the inner workings of the human body.

MRI Better than CT for Diagnosing Heart Disease, British Researchers Say

British researchers say cardiovascular magnetic resonance (CMR) should replace single-photon emission computed tomography (SPECT) when it comes to diagnosing coronary artery disease, according to a recent study published in the The Lancet.

MRI Unnecessary Before Prescribing Steroid for Back Pain Patients, Researchers Say

Treating spine problems is one of the largest contributors to the rising costs of health care, and diagnostic imaging is often cited as one of the key reasons why.

MRI Falls Short to Avoid Lymph Node Dissection in Breast Cancer

While unenhanced MRI may be good at detecting cancer in lymph nodes among breast cancer patients, it’s not good enough to avoid a lymph node dissection, according to research published online in the journal Radiology.

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