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

HeartFlow Analysis Successfully Stratifies Heart Disease Patients at One Year
News | CT Angiography (CTA) | March 19, 2019
Late-breaking results confirm the HeartFlow FFRct (fractional flow reserve computed tomography) Analysis enables...
Podcast | Cardiac Imaging | March 15, 2019
Debate About Coronary Testing Highlights ACC Session
Canon Medical Introduces Entry-Level Aquilion Start CT
News | Computed Tomography (CT) | March 14, 2019
Canon Medical Systems Europe B.V. introduced the all-new Aquilion Start computed tomography (CT) system to the European...
Siemens Healthineers Debuts Cardiovascular Edition of Somatom go.Top CT
News | Computed Tomography (CT) | March 14, 2019
Siemens Healthineers will introduce the Somatom go.Top Cardiovascular Edition, a new version of its established...
CT, Mammograms Offer Clues to Preventing Heart Problems After Cancer Treatment
News | Cardio-oncology | March 13, 2019
An imaging procedure commonly performed before starting cancer treatment can provide valuable clues about a patient's...
Aidoc Announces CE Mark for AI-based Pulmonary Embolism Workflow Tool
News | Computed Tomography (CT) | March 04, 2019
Artificial intelligence (AI) radiology solution provider Aidoc announced the commercial release of its CE-marked...
Canon Medical Introduces Deep Learning-Based CT Image Reconstruction
News | Computed Tomography (CT) | February 27, 2019
Canon Medical Systems recently introduced AiCE (Advanced intelligent Clear IQ Engine), a deep convolutional neural...
Videos | Cardiac Imaging | February 27, 2019
This is a virtual heart with the same electrophysiology characteristics as the real patient unveiled by Siemens at th
Siemens Healthineers Demonstrates Artificial Intelligence, Healthcare Digitalization at HIMSS19
News | Artificial Intelligence | February 13, 2019
February 13, 2019 — At the 2019 Healthcare Information and Management Systems Society (HIMSS) global conference and e
Canon Adds Radiation Therapy Package to Aquilion Prime, Lightning CT Systems
News | Computed Tomography (CT) | February 11, 2019
In the patient-centric world of radiation oncology, it is critical that computed tomography (CT) simulation is...