@article{article_1107186, title={Review of Factors Contributing to the Imaging of the Coronary Arteries in Coronary Computed Tomography Angiography and Implications for Imaging Practice}, journal={Osmangazi Tıp Dergisi}, volume={45}, pages={88–93}, year={2023}, DOI={10.20515/otd.1107186}, author={Aydın, Nevin}, keywords={Koroner Bilgisayarlı Tomografi Anjiyografi, Bilgisayarlı Tomografi, Koroner Arterler, Koroner Arter Görüntüleme, Koroner Arter Kontrast İyileştirme}, abstract={<div style="text-align:justify;">We aimed to review factors affecting the opacification of the coronary arteries in coronary computed tomography angiography (CTA) and evaluate their reflections on imaging practices. Coronary CTA images were retrospectively evaluated. The measurements performed from the central part of the left main coronary artery (LMCA) were divided into two groups optimal CTA (in the range of 300-400 Hounsfield units) and non-optimal CTA. Weight, heart rate, tube current, amount of contrast agent, region of interest (ROI), the short axis diameter of the left ventricle at the midventricular line in the end-diastolic phase, the field of view (FOV), and contrast + saline injection time were compared between the two groups. P<0.05 was accepted as the statistical significance limit. Eighty-three patients were included in the study, and their mean age and standard deviation were 58±18.56 years. In the study, 35 patients (42.3%) had non-optimal CTA and 48 (57.8%) had optimal CTA according to LMCA density. Patient weight (p<0.05), amount of contrast (p<0.01), FOV (p<0.05), and contrast + saline injection time (p<0.01) were significantly higher and tube current was significantly lower (p < 0.05) in the optimal CTA group compared to the non-optimal CTA group. As a result of the logistic model established with independent variables that affected the non-optimal CTA scan, tube current and amount of contrast agent were found to be significant. To bring coronary CTA to a more optimal level, radiologists should work on a patient basis, revising contrast agent protocols and adapting them to each patient. </div>}, number={1}, publisher={Eskişehir Osmangazi Üniversitesi}, organization={The author received no financial support for the research, authorship, and/or publication of this article.}