Cardiac Imaging

While cardiac ultrasound is the widely used imaging modality for heart assessments, computed tomography (CT), magnetic resonance imaging (MRI) and nuclear imaging are also used and are often complimentary, each offering specific details about the heart other modalities cannot. For this reason the clinical question being asked often determines the imaging test that will be used.

RSNA: Cardiac CT programs better diagnose acute chest pain, slash costs

CHICAGO--Cardiac CT programs at hospitals are safe and efficient and could save facilities an estimated $250 to $2,500 per patient. Physicians should take these types of programs into consideration when diagnosing acute chest pain, said Harold I. Lit, MD, PhD, from the University of Pennsylvania School of Medicine in Philadelphia, during a presentation this morning at the 96th annual scientific meeting of the Radiological Society of North America (RSNA).

RSNA: CCTA with gadolinium is alternative for those contraindicated for iodine

CHICAGO--Gadolinium-enhanced 64-slice coronary CT angiography (CCTA) could be an alternative to rule out coronary stenosis in patients with contraindications to iodine contrast, based on a study presented Nov. 28 at the 96th annual Radiological Society of North America (RSNA) conference.

JACC Feature: Low tube voltage adds PROTECTION for CCTA

Lowering the tube voltage to 100 kVp from the standard 120 kVp delivers diagnostic quality images, as well as one-third less radiation exposure, according to results from the PROTECTION II trial published in the November issue of JACC: Cardiovascular Imaging.

Feature: New CV risk guidelines give SHAPE to imaging screening, not far enough

The new ACCF/AHA guidelines for how to assess cardiovascular risk in asymptomatic adults for the first time have acknowledged the value of coronary artery calcium scoring and carotid artery intima-media thickness scanning by ultrasound. Members of the Society for Heart Attack Prevention and Eradication (SHAPE) endorse the new guidelines, but say they need to go further.

JAMA Commentary: Rads must share dose risks with patients

The medical community should develop a system of mandatory dissemination of radiation risk to patients before relevant government agencies or the legal system takes action, according to a commentary penned by Mark Otto Baerlocher, MD, from the University of Toronto, in a Nov. 17 commentary in the Journal of American Medical Association.

Vital skips into black for Q3

Vital Images, a developer of advanced visualization and image analysis software, has pulled into the black for the 2010 third quarter, which ended Sept. 30, compared with a net loss in the 2009 third quarter.

JACC: What is the true value of coronary artery calcium progression?

Recent studies have validated the prognostic nature of coronary artery calcium (CAC) scoring, on its own or in conjunction with the Framingham risk score. But, there is no current standardization of how CAC progression should be assessed and exactly what meaningful progression constitutes, according to a study in the Nov. 9 issue of the Journal of the American College of Cardiology.

JACC: Cardiac MR may be ideal for mitral regurgitation assessment

Cardiac MR (CMR) can help determine the progression of mitral regurgitation (MR) in patients with mitral valve prolapse (MVP), according to a study published Oct. 20 in the Journal of the American College of Cardiology, while an editorial questioned the validity of the approach.

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 newly cleared offering, AutoChamber, was designed with opportunistic screening in mind. It can evaluate many different kinds of CT images, including those originally gathered to screen patients for lung cancer. 

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