News | January 06, 2010

Physiologic Factors Affect CT Coronary Artery Images

January 6, 2010 - The image quality of multidetector computed tomography (MDCT) scans used for the noninvasive detection of coronary artery disease can be significantly affected by patient characteristics, such as ethnicity, body mass index (BMI), and heart rate. Researchers explained the details of these findings from a large multicenter international trial in the January issue of the American Journal of Roentgenology.

The large multicenter international trial study included 291 patients with coronary artery calcification and found that compared with examinations of white patients, studies of black patients had significantly poorer image quality.

In the study, led by Melvin E. Clouse, M.D., researchers found that diagnostic accuracy of MDCT are limited by physiologic factors when compared conventional invasive coronary angiography. These factors included high heart rate, arrhythmia, obesity, and high coronary calcium burden with motion. The study was significant because it showed a relevant influence of BMI, heart rate, ethnicity, and breathing artifact on the degradation of image quality.

Dr. Clouse added that the diagnostic ability of any imaging method is directly dependent on image quality.

For more information: www.jacr.org

Related Content

Videos | Computed Tomography (CT) | July 17, 2018
An interview with Patrick Serruys, M.D., Ph.D., Imperial College London, principal investigator of the SYNTAX III Tri
Zebra Medical Vision Announces FDA 510(k) Clearance of Coronary Calcium Algorithm
Technology | Computed Tomography (CT) | July 12, 2018
Zebra Medical Vision has received 510(k) clearance from the U.S. Food and Drug Administration (FDA) for its Coronary...
IAC Awards First CT Accreditation for a Mobile Stroke Unit
News | Computed Tomography (CT) | July 09, 2018
The Intersocietal Accreditation Commission (IAC) recently recognized the University of Tennessee Health Science Center...
FFR-CT may soon replace invasive angiography for coronary lesion assessment. #EuroPCR 

Anexample of a clinical case of CT-FFR, which can derive the FFR numbers for their entire coronary tree using a noninvasive CT scan.

Feature | Computed Tomography (CT) | May 29, 2018
May 29, 2018 — Results from the innovative SYNTAX III Revolution Trial [1] underline the effectiveness of evolving no
James Min Named Editor-in-Chief of Journal of Cardiovascular Computed Tomography
News | Computed Tomography (CT) | May 01, 2018
James K. Min, M.D., FSCCT, has been selected for a five-year term as the new editor-in-chief of the Journal of...
FDA Clears Siemens' Somatom go.All, go.Top CT Scanners
Technology | Computed Tomography (CT) | April 18, 2018
April 18, 2018 — The U.S.
Canon Medical Systems' Aquilion Precision CT Receives FDA Clearance
Technology | Computed Tomography (CT) | April 13, 2018
Canon Medical Systems USA Inc. this week received U.S. Food and Drug Administration (FDA) clearance for the Aquilion...
FDA Clears Siemens Somatom Edge Plus CT System
Technology | Computed Tomography (CT) | April 04, 2018
April 4, 2018 — The U.S.
Canon Medical Systems Highlights Aquilion One/Genesis CT Stroke Suite at SIR 2018
News | Computed Tomography (CT) | March 29, 2018
March 29, 2018 — The Aquilion One/Genesis Edition...
CT Shows Enlarged Aortas in Former Pro Football Players

3-D rendering from a cardiac CT dataset demonstrating mild dilation of the ascending aorta. Image courtesy of Christopher Maroules, M.D.

News | Computed Tomography (CT) | January 12, 2018
Former National Football League (NFL) players are more likely to have enlarged aortas, a condition that may put them at...
Overlay Init