Cardiovascular Radiology: Page 83

Primary PCI vs. prehospital lysis for MI: similar survival

By Reuters Health

NEW YORK (Reuters Health), Aug 19 - Five-year survival is similar whether patients with acute myocardial infarction (MI) are treated with primary percutaneous coronary intervention (PCI) or prehospital lysis followed by transfer to an interventional facility.

August 18, 2009

Dual-source CT can reduce radiation exposure with optimization protocols

By Reuters Health

NEW YORK (Reuters Health), Aug 12 - Radiation exposure can be reduced using dual-source CT instead of 16- or 64-slice CT for coronary angiography, but only if dose optimization protocols are used, according to a report in the August 15 issue of Heart.

August 11, 2009

GE installs first Discovery SPECT/CT

By AuntMinnieEurope.com staff writers

GE Healthcare has completed the first installations of its new cadmium zinc telluride-based SPECT/CT nuclear cardiology camera, Discovery NM/CT 570c.

August 10, 2009

Some stenoses go undiagnosed with 64-slice CCTA

By AuntMinnieEurope.com staff writers

Anatomic discordance and, in some cases, the reader's failure to accurately quantify intermediate stenosis, results in limited per-segment sensitivity for 64-detector-row coronary CT angiography (CCTA), concludes a new study in the August issue of Radiology.

August 9, 2009

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

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

Coronary artery calcium independently predicts risk in CAD patients

By Reuters Health

NEW YORK (Reuters Health), Jul 29 - Coronary calcium scoring can be used to predict future severe cardiac events in patients with stable coronary artery disease (CAD), according to a new study in Radiology.

July 28, 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

Nuclear myocardial perfusion imaging can reduce hospital costs for suspected MI

By Reuters Health

NEW YORK (Reuters Health), Jul 13 - For low-risk emergency department patients with suspected acute coronary syndrome, acute nuclear myocardial perfusion imaging (MPI) has the potential to safely reduce the number of hospital admissions and to lower overall costs, Swedish investigators report.

July 12, 2009

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