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.

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.

Research Finds Self-Referral Likely Driving Up Use of MRIs in One Community

Duke University researchers point to physician self-referral as possibly driving up utilization among imaging facilities in one particular community.

FDA Workshop Covers MRI Safety Enhancements

MRI safety was the topic of a two-day public workshop held earlier this week by the Food and Drug Administration (FDA) on its White Oak campus in Silver Spring, Maryland.

Maximizing Opportunities for Patient Care: MRI of Reston

Sponsored by Hitachi Healthcare Americas

Reston Radiology Consultants (Ashburn, Virginia) is a hospital-based imaging practice in business for over twenty years that includes several outpatient centers, including MRI of Reston, where four systems carry an imaging load that reaches a combined average of 24,000 studies annually. This suggests a fair amount of volume seen at that lone

Around the web

The nuclear imaging isotope shortage of molybdenum-99 may be over now that the sidelined reactor is restarting. ASNC's president says PET and new SPECT technologies helped cardiac imaging labs better weather the storm.

CMS has more than doubled the CCTA payment rate from $175 to $357.13. The move, expected to have a significant impact on the utilization of cardiac CT, received immediate praise from imaging specialists.

The all-in-one Omni Legend PET/CT scanner is now being manufactured in a new production facility in Waukesha, Wisconsin.