Interventional: Page 22

High-pitch CT cuts dose for patients with low heart rates

By Eric Barnes

Austrian radiologists have found a way to cut the radiation dose of coronary CT angiography studies to as low as 1 mSv by using a high-pitch scanning protocol on a 128-slice scanner for patients with low heart rates.

January 16, 2011

Low-dose CT coronary angiography diagnostic in most cases

By Reuters Health

NEW YORK (Reuters Health) - Low-dose CT coronary angiography could be sparing more patients from invasive angiography, a new report from Switzerland suggests. Results were reported in the January 18 Journal of the American College of Cardiology.

January 11, 2011

32-channel 3.0-T MRI and 64-slice CT detect CAD equally well

By Reuters Health

NEW YORK (Reuters Health) - In a prospective comparative study, 32-channel 3.0-tesla MRI and 64-slice CT angiography similarly identified significant coronary stenosis and similarly predicted revascularization in patients with suspected or known coronary artery disease (CAD).

January 9, 2011

Reentrant tachycardia recurs more often after cryoablation vs RF ablation

By Reuters Health

NEW YORK (Reuters Health) - In the short term, cryoablation and radiofrequency (RF) ablation were equally effective for atrioventricular nodal reentrant tachycardia in a German study -- but six months later, recurrence was higher with cryoablation.

December 5, 2010

DNA damage reduced at 320-slice coronary CTA

By Eric Barnes

CHICAGO - Low-dose coronary CT angiography (CTA) delivered far less DNA damage than conventional coronary angiography, researchers from Berlin reported on Monday at the RSNA meeting's cardiac imaging sessions.

November 28, 2010

Transcatheter aortic valve implantation beneficial for patients over 80

By Reuters Health

NEW YORK (Reuters Health) - Transcatheter aortic valve implantation is an effective alternative to surgery for patients over 80 years old, researchers from Germany report in the November 9 online issue of the American Journal of Cardiology.

November 27, 2010

CAD boosts new readers in diagnosing stenosis on CCTA

By Erik L. Ridley

CHICAGO - Computer-aided detection (CAD) software can improve the diagnosis of stenosis on coronary CT angiography (CCTA), although the level of performance gain varies by level of reader experience, according to research presented Sunday at the 2010 RSNA meeting in Chicago.

November 27, 2010

7T MRI matches 3T in right coronary artery imaging

By Wayne Forrest

Dutch researchers have concluded that in vivo human imaging of the right coronary artery at 7-tesla MRI equals or surpasses 3-tesla MRI, according to a study published in the October issue of Radiology.

October 19, 2010

MRI can be used to follow great vessel stents

By Wayne Forrest

Using certain imaging sequences, MRI can be sufficient for the routine surveillance of certain great vessel stents commonly used to treat congenital heart defects in children and young adults, according to a study in the October issue of the American Journal of Roentgenology.

September 22, 2010

MR angiography accurate for diagnosing peripheral artery disease

By Reuters Health

NEW YORK (Reuters Health), Sep 7 - Contrast-enhanced magnetic resonance angiography reliably identifies arterial stenosis/occlusion in adults with symptoms of peripheral artery disease and accurately stages the extent of disease, results of a meta-analysis show.

September 6, 2010

Coronary CT angiography valuable in asymptomatic patients, safer than ever

By Reuters Health

NEW YORK (Reuters Health), May 28 - In patients with elevated cardiac risk but without cardiac symptoms, coronary CT angiography can reliably predict cardiac events and assess cardiovascular risk, German researchers reported online April 30 in the American Journal of Cardiology.

May 27, 2010

Gadobenate better than gadopentetate contrast in MRA

By Wayne Forrest

Gadobenate dimeglumine offers better performance than gadopentetate dimeglumine in patients undergoing contrast-enhanced MR angiography (MRA) for suspected peripheral arterial occlusive disease, according to a study in the June issue of Radiology.

May 23, 2010

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