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A Boston University-led research team has come up with a breed of contrast agents that might open the door to the use of CT to noninvasively diagnose osteoarthritis. These agents visualize the distribution of glycosaminoglycans, the anionic sugars that account for the strength of joint cartilage.

Developers of CT scanners have been trying to adapt their technology to breast imaging for decades. They have drawn a step closer, thanks to the efforts of researchers at the University of California, Davis. Their efforts may lead to the ability to not only visualize but treat breast cancer.

Medication errors may arise less often in a busy hospital radiology department than in other inpatient services, but they can cause more serious damage when they do happen. Radiologists at Boston-based Beth Israel Deaconess Medical Center came to these conclusions after evaluating 27 months of high-tech medical imaging experience. They used their data to identify the causes of errors and devise strategies to address them.

Dose reduction will be among Siemens’ key messages at the RSNA meeting this year. Driving home this message will be IRIS (iterative reconstruction in image space), a proprietary algorithm that processes raw data acquired by CTs, according to André Hartung, Siemens vice president, CT Marketing and Sales.

With years of slice wars behind them, vendors will argue that image quality and dose reduction are this year’s dominant issues in CT. Most of their arguments will be rooted in past developments.

CMS will increase the equipment utilization rate assumption used to determine the practice expense for all nontherapeutic medical equipment, including diagnostic imaging systems, from 50% to 90% under new Medicare fee schedule rules announced Friday. In a bit of good news for radiology, CMS said it remains on track to require that suppliers of advanced imaging services become accredited by 2012.

Cedars-Sinai Medical Center, the prestigious Los Angeles healthcare institution known as the hospital to the Hollywood stars, has been jolted by an FDA alert indicating that perfusion CT performed during an 18-month period exposed more than 200 stroke patients to eight times the normal dose of ionizing radiation for the procedures.

Swine flu patients are at risk of developing severe complications, such as pulmonary emboli, according to University of Michigan researchers. Most chest x-rays come back normal, so it’s especially important for radiologists to look closely for risks of blocked arteries in the lungs.

It should come as no surprise that the nuclear medicine community is struggling to keep up with the number of prescribed heart and bone exams. Technetium is typically used in the U.S. for more than 16 million nuclear medicine tests each year-but not this year. A survey by the SNM found that three quarters of nuclear medicine physicians are delaying patient tests, in many cases longer than a month. A shortage of medical-grade molybdenum-99 (Mo-99), the isotope critical to generating technetium, is the reason.

Coronary artery calcium scoring has been tested at the University of Western Ontario to flag nuclear myocardial perfusion scans that missed the presence of three-vessel coronary artery disease, and to triage patients who need coronary CT angiography or cardiac catheterization.

A proposal to increase the assumed equipment utilization rate, combined with other payment reductions, could result in 2010 rate cuts for imaging centers greater than those imposed by the Deficit Reduction Act of 2005, a new analysis concludes.

With the goal of tailoring cancer interventions for the individual, researchers at the Lombardi Comprehensive Cancer Center at Georgetown University have published the results of a prospective study that validates the use of a simple blood test to help doctors more reliably assess treatment effectiveness for patients with metastatic breast cancer.