Cardiac Imaging: Page 91

CTA dose and image quality: 3rd- vs. 2nd-generation DSCT
By Eric Barnes
Thursday, December 4 | 9:35 a.m.-9:45 a.m. | VSVA51-06 | Room E352How much can dose be reduced in CT angiography (CTA) while preserving image quality in the latest dual-source CT (DSCT) scanners? Dr. Florian Schwarz and colleagues from the University of Munich looked at the image quality and radiation dose-saving potential of advanced dual-source CT.
November 3, 2014
Does 4D CTA outperform DSA for arteriovenous malformations?
By Eric Barnes
Wednesday, December 3 | 3:00 p.m.-3:10 p.m.| SSM25-01 | Room E450BDigital subtraction angiography (DSA) is the gold standard for evaluating arteriovenous malformations, but 4D CT angiography (CTA) outperforms it by visualizing the nidus.
November 3, 2014
Is iterative reconstruction a fix for motion-altered calcium scores?
By Eric Barnes
Wednesday, December 3 | 11:50 a.m.-12:00 p.m. | SSK03-09 | Room S502ABDr. Martin Willemink and colleagues from University Medical Center Utrecht in the Netherlands addressed this question with iterative model reconstruction, a calcium hydroxyapatite-containing phantom, and a 256-slice CT scanner.
November 3, 2014
Calcium volume, distribution predict rupture risk for TAVR patients
By Eric Barnes
Tuesday, December 2 | 10:30 a.m.-10:40 a.m. | SSG02-01 | Room S504ABBalloon-expandable transcatheter aortic valve replacement (TAVR) procedures can lead to dangerous aortic root injury in the event of annular rupture. How do such ruptures happen and in which patients? Canadian researchers looked at the role of calcified plaque's location and distribution in these events.
November 3, 2014
Motion correction green-lights CCTA in faster hearts
By Eric Barnes
Monday, December 1 | 11:50 a.m.-12:00 p.m. | SSC02-09 | Room S504ABStopping motion in the fast-beating heart is, of course, one of the toughest challenges in radiology, but new methods such as high-pitch CT and motion correction techniques are fueling new levels of image quality, even in patients with the highest heart rates.
November 3, 2014
Calcium boosts heart attack risk. How about noncalcified plaque?
By Eric Barnes
Monday, December 1 | 11:10 a.m.-11:20 a.m. | SSC02-05 | Room S504ABThe role of coronary artery calcium in myocardial infarction risk is well-established, but the role of noncalcified plaque is still evolving. In this study, researchers aimed to determine how total plaque burden corresponds to traditional risk factors for cardiovascular disease.
November 3, 2014
3D CT fused with electroanatomic mapping for VT ablation
By Eric Barnes
Sunday, November 30 | 11:55 a.m.-12:05 p.m. | SSA02-08 | Room S502ABA new technique that fuses cardiac CT and electroanatomic mapping could boost the success rate for ventricular tachycardia (VT) mapping and ablation procedures, a more complex process than ablation for atrial fibrillation and related conditions.
November 3, 2014
Is epicardial fat linked to atrial fibrillation?
By Eric Barnes
Sunday, November 30 | 10:55 a.m.-11:05 a.m. | SSA03-02 | Room S504ABQuantifying epicardial fat on preprocedural CT scans may help identify patients with atrial fibrillation (AF) who will benefit from catheter ablation as a treatment for AF, according to a study to be presented on Sunday.
November 3, 2014
Can the lumen area of stenosis predict coronary lesion significance?
By Eric Barnes
Sunday, November 30 | 10:45 a.m.-10:55 a.m. | SSA03-01 | Room S504ABThis study looked at the value of mean lumen area quantification by CT angiography to predict the hemodynamic significance of coronary stenosis at invasive angiography severe enough to require revascularization.
November 3, 2014
FDA clears new version of Siemens ultrasound scanner
By AuntMinnie.com staff writers
The U.S. Food and Drug Administration has cleared a new version of Siemens Healthcare's Acuson SC2000 cardiovascular ultrasound device.
October 15, 2014
Study: Overuse of cardiac imaging adds to health costs
By Brian Casey
A new study published in Annals of Internal Medicine has concluded that the overuse of cardiac stress testing with medical imaging has contributed to rising healthcare costs.
October 12, 2014
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PET imaging technique lessens motion effects
By AuntMinnie.com staff writers
Finnish researchers have developed an imaging technique to reduce the effect of respiratory motion on PET image quality, according to a new study published in Physics in Medicine and Biology.
October 12, 2014
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