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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GE Healthcare MR Technique Improves Accuracy for Imaging Joint Replacements and Implanted Devices

Addressing the need for better imaging of tissue surrounding metal-containing implants such as joint replacements, GE Healthcare and researchers at the Hospital for Special Surgery in Waukesha, Wis., designed and tested a novel MR imaging technique that cuts down on the image distortion caused by metal in implants

Medicare MRI Use Declined from 2008 to 2010

A study in the JACR finds that after increasing sharply for 10 years, the use of MRI for Medicare patients began to decline four years ago

With Affordability in Mind, GE Healthcare Unveils New 1.5T MRs

GE is responding to the call for advanced and affordable care with two new 1.5T MR scanners — the Optima MR360 Advance and Brivo MR355 Inspire — designed to produce images that compare well with 3T systems, but at a reduced total cost of ownership for the facility

GE Healthcare Introduces New Software for Cardiac MRI Image Analysis

GE Healthcare announced two new image analysis software packages for cardiovascular MR images: CardiacVX and MR VesselIQ Xpress

Hurricane Risks to MRI and Imaging

RAD-Planning has issued an advisory for imaging centers in the path of Isaac in the Gulf Region, which forecasts predict will soon become a hurricane.

Toshiba Receives FDA Clearance for 8- and 32-Channel Titan 1.5T MR Systems

Toshiba America Medical Systems, Inc. received FDA clearance on its new Vantage Titan 1.5T series, which features the 8-, 16- and 32-channel MR systems. The series offers a scalable solution with a full upgrade path from the 8-channel to the 32-channel system.

Toshiba Receives FDA Clearance for Industry’s First 16-Element MR Flex Coils

Toshiba America Medical Systems, Inc. has received FDA clearance for its high-density 16-element flexible coil system, developed in partnership with NeoCoil.

Siemens Magnetom Spectra 3T MRI Receives FDA Clearance

Siemens Healthcare announced that the MAGNETOM Spectra 3 Tesla MRI system has received clearance from the FDA. The MAGNETOM Spectra system offers premium imaging at a competitive price, providing hospitals and radiological institutes with easier access to 3T technology.

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