For the study, 170 patients with suspected coronary artery disease underwent CT-CA. The average vascular attenuation measured in the aortic root and in coronary arteries was used to divide the population into two groups of 85 patients each, one with low attenuations and one with high. The researchers found that the sensitivity and specificity for detecting artery lesions were 91% and 93%, respectively, for the low group and 96% and 97%, respectively for the high attenuation group.
"These results stress the importance of high intra-coronary attenuation during coronary CT angiography to achieve better diagnostic accuracy and therefore better diagnosis," said Filippo Cademartiri, MD, of Erasmus Medical Center, and one of the authors of the study. "As a result, a higher iodine concentration could be a means to increase diagnostic accuracy," he added.
However, the authors caution, high attenuation by itself is not the only issue that should be taken into consideration. "Other factors beside high attenuation are also important, especially in difficult patients (for instance, high body mass index, small coronary arteries, etc.). This information can be the difference between a diagnostic and a non-diagnostic investigation," said Dr. Cademartiri.
The full results of the study will be presented on Monday, May 7 by Erica Maffei, MD, of the Azienda Ospedaliero-Universitaria, during the American Roentgen Ray Society Annual Meeting in Orlando, FL.
Necoya Lightsey | EurekAlert!
Visualizing gene expression with MRI
23.12.2016 | California Institute of Technology
Illuminating cancer: Researchers invent a pH threshold sensor to improve cancer surgery
21.12.2016 | UT Southwestern Medical Center
An important step towards a completely new experimental access to quantum physics has been made at University of Konstanz. The team of scientists headed by...
Yersiniae cause severe intestinal infections. Studies using Yersinia pseudotuberculosis as a model organism aim to elucidate the infection mechanisms of these...
Researchers from the University of Hamburg in Germany, in collaboration with colleagues from the University of Aarhus in Denmark, have synthesized a new superconducting material by growing a few layers of an antiferromagnetic transition-metal chalcogenide on a bismuth-based topological insulator, both being non-superconducting materials.
While superconductivity and magnetism are generally believed to be mutually exclusive, surprisingly, in this new material, superconducting correlations...
Laser-driving of semimetals allows creating novel quasiparticle states within condensed matter systems and switching between different states on ultrafast time scales
Studying properties of fundamental particles in condensed matter systems is a promising approach to quantum field theory. Quasiparticles offer the opportunity...
Among the general public, solar thermal energy is currently associated with dark blue, rectangular collectors on building roofs. Technologies are needed for aesthetically high quality architecture which offer the architect more room for manoeuvre when it comes to low- and plus-energy buildings. With the “ArKol” project, researchers at Fraunhofer ISE together with partners are currently developing two façade collectors for solar thermal energy generation, which permit a high degree of design flexibility: a strip collector for opaque façade sections and a solar thermal blind for transparent sections. The current state of the two developments will be presented at the BAU 2017 trade fair.
As part of the “ArKol – development of architecturally highly integrated façade collectors with heat pipes” project, Fraunhofer ISE together with its partners...
19.01.2017 | Event News
10.01.2017 | Event News
09.01.2017 | Event News
20.01.2017 | Awards Funding
20.01.2017 | Materials Sciences
20.01.2017 | Life Sciences