Interventional: Page 85

Dual-source coronary CTA has advantages over 64-slice

By Eric Barnes

Even in patients with well-controlled heart rates, dual-source coronary CT angiography (CTA) delivers significantly higher specificity and accuracy per coronary segment compared to 64-detector-row CTA, concludes a new study from Switzerland.

August 6, 2009

IAEA study finds that interventional dose may be too high

By Brian Casey

Many patients at hospitals in developing countries may be getting too much radiation dose during interventional radiology and cardiology procedures, according to a study sponsored by the International Atomic Energy Agency (IAEA) and published in the August issue of the American Journal of Roentgenology.

August 4, 2009

Lower-kilovoltage coronary CTA maintains image quality

By Eric Barnes

In a study that included all but the heaviest cardiac imaging patients, European and Japanese researchers were able to cut radiation dose by 31% in coronary CT angiography (CTA) studies by reducing the kilovoltage from 120 kV to 100 kV, with no difference in image quality.

August 4, 2009

Study: Iso-osmolar contrast not safer for kidneys

By AuntMinnie.com staff writers

A meta-analysis examining contrast agent safety in nearly 3,000 subjects found no evidence that a more expensive iso-osmolar agent resulted overall in fewer contrast-induced acute kidney injuries compared to cheaper low-osmolar alternatives.

July 29, 2009

Dual-source CTA turns in mixed results for coronary stenoses

By Wayne Forrest

Dual-source CT angiography (CTA) achieves a high negative predictive value in excluding coronary artery stenoses in patients with stable coronary artery disease, but the modality is "very limited" in its ability to predict the presence of ischemia, according to a study by German researchers.

July 29, 2009

Medtronic, Abbott bury patent-dispute hatchet

By AuntMinnie.com staff writers

Interventional device developers Medtronic and Abbott Laboratories have settled their global vascular patent litigation.

July 26, 2009

Pharma developer Epix to shut down, liquidate assets

By Brian Casey

Having failed to obtain additional financing or consummate a strategic transaction, drug developer Epix Pharmaceuticals said it is shutting down the company and has terminated nearly all of its employees.

July 22, 2009

Zero calcium means good outcomes, even with undetected plaques

By Eric Barnes

Patients with coronary artery plaques -- soft, mixed, or otherwise -- that go undetected in a calcium scan still have a good prognosis, according to a new study presented at last week's Society of Cardiovascular Computed Tomography meeting in Orlando, FL.

July 22, 2009

Rhode Island puts interventional radiology unit on probation

By Kate Madden Yee

The interventional radiology department at Kent Hospital in Rhode Island has been put on probation by state health authorities after two wrong-site interventional procedures and a state inspection that found signs of what regulators called "pervasive problems" in the unit.

July 20, 2009

Procedure volume grows for noncardiac angiography

By Lin Muschlitz

Procedure volume for noncardiac angiography applications in the U.S. has grown at a steady single-digit rate over the past four years as interventional radiologists find new applications for the technology, according to a new market research report by IMV Medical Information Division.

July 20, 2009

Adding PET to 64-slice CT aids detection of heart disease

By Wayne Forrest

Adding functional data from PET to 64-slice coronary CT angiography can improve the latter's ability to detect coronary artery disease, overcoming the modality's historic weak point in specificity, according to U.K. researchers.

July 19, 2009

Prospectively gated coronary CTA nearly equals normal-dose scans

By Eric Barnes

Researchers in Italy report that low-dose prospectively gated coronary CT angiography (CTA) scans are nearly equivalent to retrospectively gated exams in diagnostic accuracy, while reducing radiation dose by up to 72%, according to an article published in the Journal of the American College of Cardiology.

July 16, 2009

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