Cardiovascular Radiology: Page 82

Study to compare 320-row CT perfusion against SPECT

By Eric Barnes

Following up on the CORE 64 study that tested the value of coronary CT angiography vis-à-vis angiography, researchers have launched a new international trial to compare 320-detector-row CT perfusion to SPECT myocardial perfusion imaging for detecting early coronary artery disease.

February 9, 2010

CT better than MRI for ruling out coronary disease

By Reuters Health

NEW YORK (Reuters Health), Feb 2 - When a noninvasive test for ruling out coronary artery disease is appropriate, CT-based angiography is more sensitive and specific than MRI-based angiography, a new meta-analysis shows.

February 1, 2010

Medical images unlikely to change risky behavior, study shows

By Donna Domino

If you show an obese person a medical image of their plaque-clogged arteries, will it help motivate them to get more exercise? Not necessarily, although you might have better luck getting smokers to change their ways, according to a new review of literature from the Cochrane Collaboration.

January 24, 2010

Italian researchers cut gadolinium dose -- as well as NSF risk

By Wayne Forrest

A half dose of a commercially available MRI contrast agent works as well as a full dose in patients with acute myocardial infarction, according to Italian researchers. The findings show it's possible to achieve shorter imaging times while protecting renally impaired cardiac patients at risk for nephrogenic systemic fibrosis (NSF).

January 20, 2010

MRI used in heart valve operation

By AuntMinnieEurope.com staff writers

Surgeons at King's Health Partners Academic Health Sciences Center in London recently used MRI, rather than x-ray, to guide a procedure to widen a heart valve in a 6-year-old boy.

January 13, 2010

CTA motion model aims to improve cardiac function analysis

By Eric Barnes

Dutch researchers used an automated coronary artery motion model to analyze cardiac function from electrocardiogram-gated coronary CT angiography (CTA) data. The method promises to improve cardiac function analysis and reconstruction interval selection, and even provide new information on coronary artery motion at different heart rates.

January 10, 2010

DSCT edges out 64-slice CT in coronary artery imaging

By Eric Barnes

Coronary CT angiography performed on dual-source CT (DSCT) confers a slight advantage in image quality with slightly fewer nondiagnostic vessel segments compared to 64-detector-row CT. Calcification remains a challenge with both types of scanners, but it's slightly less problematic with dual-source systems, say researchers from the University of Rome.

January 7, 2010

Patients with peripheral arterial disease may need cardiac imaging

By Edward Susman

As many as one in five patients being treated for peripheral arterial disease have concurrent -- but silent -- asymptomatic coronary artery disease that's severe enough to require invasive procedures, according to a study presented at the RSNA meeting earlier this month.

December 29, 2009

MRI shows age- and gender-based differences in myocardial motion

By Eric Barnes

People who suspect that men's and women's hearts march to different drummers now have proof from cardiac MRI. Myocardial motion is strongly influenced by gender as well as age, according to researchers from Freiburg, Germany.

December 17, 2009

CT calcium detection helps rule out obstructive coronary disease

By Reuters Health

NEW YORK (Reuters Health), Dec 15 - Non-enhanced CT for calcium detection is a reliable way to exclude obstructive coronary artery disease in patients with chest pain, researchers report in the December issue of the American Journal of Cardiology.

December 14, 2009

Tissue Doppler ratio predicts cardiac events in hypertensive patients

By Reuters Health

NEW YORK (Reuters Health), Dec 10 - Estimates of left atrial filling pressure, drawn from Doppler studies of the left ventricle, can strongly predict a first cardiac event in hypertensive patients, according to a report in the November 26 European Heart Journal.

December 9, 2009

Echocardiography test beats SPECT for predicting problems after MI

By Reuters Health

NEW YORK (Reuters Health), Dec 7 - Myocardial contrast echocardiography is superior to nitrate-enhanced SPECT in predicting cardiac death and other cardiac events after acute myocardial infarction, say researchers from the U.K. in the November 1 American Journal of Cardiology.

December 6, 2009

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