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.

New era of CT promises lower radiation dose

A conventional cardiac CT scan images a larger portion of a patient's body and then extracts the data pertinent to the cardiac question. A new approach being researched portends to image only the heart, thus reducing radiation exposure to the patient.

GE Healthcare comes in strong for Q1

Although General Electric reported $36.6 billion in revenue for the 2010 first quarter, reflecting a  5 percent decrease from a year ago, GE Healthcare saw a 5 percent increase in revenue.

ACC: Making cuts to rad exposure does not equal loss of diagnostic quality

With six million people in the U.S. currently undergoing CT scans and the number of CT scans alone experiencing an annual growth rate of about 11-13 percent between 2000-2005, the exposure to low-dose ionizing radiation is quite concerning, reported Kavitha Chinnaiyan, MD, program director of advanced cardiac imaging education within the division of cardiology at William Beaumont Hospital in Royal Oak, Mich., during the ACC.10 conference in Atlanta last month.

AIM: MR pulmonary angio should be sparsely performed in proven centers

Magnetic resonance (MR) pulmonary angiography should be considered only at centers that routinely perform the procedure well and only for patients for whom standard tests are contraindicated, according to the prospective PIOPED III study, published April 6 in the Annals of Internal Medicine.

OCT could help prevent, treat CV abnormalities in embryonic hearts

The use of optical coherence tomography (OCT) can effectively evaluate cardiovascular abnormalities in real-time, high-resolution images, helping researchers evaluate the embryonic heart before it begins beating to help better prevent and treat heart-related problems before birth.

Montefiore nabs CV imaging luminary Garcia to chair cardiology

Mario J. Garcia, MD, a cardiologist who helped develop and clinically implement cardiac CT angiography, has been recruited as co-director of the Montefiore-Einstein Heart Center and as chief of cardiology within the department of medicine at Montefiore Medical Center in New York City.

FDA meeting on CT rad exposure: Too many problems or too many solutions?

GAITHERSBURG, Md.CT took center stage at yesterdays morning session when the FDA began its two-day public meeting to hear responses about what manufacturers of medical imaging devices could do to help reduce unnecessary patient exposure to ionizing radiation.

ACC: Calcium scoring protocol adds no benefit to CT in predicting CAD events

In patients with suspected coronary artery disease (CAD), combined coronary artery calcium scoring and coronary CT angiography (CCTA) are no more beneficial than the CCTA protocol alone in the prediction of major adverse cardiac events, based on the results of a poster presentation at the American College of Cardiology (ACC) annual conference in Atlanta earlier this month.

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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