Standard nuclear scintigraphy of parathyroid cancer produces enough false positives for patients with multigland disease to lead researchers to recommend rapid intraoperative parathyroid hormone assay along with preoperative technetium-99m sestamibi imaging to assure that all lesions have been removed.

GE Healthcare announced at RSNA 2009 an effort to develop the next generation of software designed to cut patient x-ray dose from CT.

New software shown by Siemens at the RSNA meeting promises to cut patient exposure to x-rays by as much as 60% for a wide range of CT applications.

Over the last several months, Philips has been dropping hints that the company would unveil at RSNA 2009 a high-powered technique for cutting CT dose. The company did not disappoint.

Adding coronary calcium to the assessment of conventional cardiovascular risk factors leads to substantial improvement in cardiovascular risk classification of asymptomatic men and women, according to a study presented at the RSNA on Wednesday afternoon.

McKesson is showcasing its latest image management technology on the RSNA exhibit floor, a workflow enhancement called Variable Thickness Regional Intensity Projection (VTRIP), which promises more efficient reading of CT and MR studies.

A preliminary study suggests that CTA can play the role cardiac MRI has been playing for detecting and quantifying myocardial infarction to estimate the potential success of coronary bypass graft surgery.

Despite growing concern over CT-related radiation exposure, measuring cumulative exposure from CT imaging in a standardized or formal way is not part of routine practice for ordering physicians in the emergency department, according to a presentation this week at the 2009 RSNA meeting.

CT vendors have been talking for months about the potential of iterative reconstruction as the next big thing to substantially reduce the worrisome radiation dose patients are exposed to during multislice CT imaging. Now they have results of a large multicenter cohort study to add substance to their enthusiasm.

Adding noncontrast and delayed-contrast series to abdominal/pelvic CT examinations appears common in routine clinical practice and represents a potential public health danger with no associated clinical benefit, according to a presentation Monday afternoon at the 2009 RSNA meeting.

A new Irish study has highlighted an alarming lack of knowledge among clinicians about radiation exposure and its potential risks.

Siemens unveiled a new information technology at RSNA 2009: software that promises to do the tedious and time-consuming tasks involved in reading MR and CT exams. The new product, a work-in-progress pending FDA clearance, is an outgrowth of the syngo platform that Siemens has used for years to provide consistency in data processing among its modalities.

Radiologist Dr. Richard M. Chesbrough has taken an in-depth look at outpatient imaging services in Southeast Michigan, and the resulting picture is not pretty

Radiologists may soon be able to use an Apple iPhone application to view CT images when traditional imaging software is inconvenient or inaccessible, according to a study presented Monday at the 2009 RSNA meeting. The researchers found radiologists were able to accurately diagnose acute appendicitis from a distant location using the OsiriX Mobile application.

Findings of a study released Sunday at the 2009 RSNA meeting by researchers in Boston suggest CT angiography could help radiologists identify the factors that keep some types of lower extremity fractures from healing faster and better than other, similar lesions.

A retrospective single-center study involving 350 pregnant women indicates that contrast-enhanced CT to diagnose suspected pulmonary embolism poses no risk to the thyroid function of neonats.

Mild skin reactions are a not infrequent delayed adverse outcome of contrast-enhanced CT, according to a prospective study from the University of California, Davis.

Cardiac imaging researchers are expanding the scope of topics considered at the 2009 RSNA meeting to include iodinated contrast media administration as a safety issue and clinical outcomes studies that weigh the relative merits of cost and clinical efficacy.

Rather than retreating after the hard blow handed them by the Centers for Medicare and Medicaid Services, which refused to grant reimbursement for the application in May, CT colonography researchers will arrive at the 2009 RSNA meeting with more of what CMS wants: hard data.

Musculoskeletal scientific sessions at the RSNA meeting will address the use of dual-energy CT in multiple settings, including the possibility of combined heart and bone density scans. Submitted papers also show the use of dual-energy CT for imaging other indications, such as gout.