Keywords:
Cardiovascular system, CT-Angiography, Computer Applications-3D, Aneurysms, Arteriosclerosis, Dissection
Authors:
M. Finazzo, F. Finazzo, C. Duranti, A. Dell'Era, F. Pinto, D. Messana
DOI:
10.26044/ecr2023/C-16007
Methods and materials
Volumetric data from 20 coronary CT angiography (CCTA) examinations and 20 thoraco-abdominal aorta CT angiography examinations (TAA -CTA) were used to generate VR and GIR images. Notably, CT volumetric data were drawn from: 16 patients with post operative aorta; 3 patients with aortic aneurysm; 1 patient with type b aortic dissection; 3 patients with CABG; 4 patients with coronary aneurism and/or ectasia; 5 patients with coronary anomaly; 4 patients with coronary stent; 4 patients with coronary artery stenosis.
All CCTA and TAA-CTA examinations were performed with a 320 detector row CT scanner (Canon Medical Systems Aquilion One Genesis). VR and GIR images were generated on a workstation (Canon Medical Systems Vitrea workstation).
Three diagnostic radiologist (MF, FF, CD, named respectively DR I, DR II, DR III) with more than 20 years of experience assigned a score to the overall image quality of VR and GIR images of each examination, by using a 5 - point Likert scale: 1 = Suboptimal 3D rendering; 2 = Acceptable 3D rendering; 3 = Fair 3D rendering; 4 = Good 3D rendering; 5 = Excellent 3D rendering. The image-quality scores of VR and GIR images were assessed with the two-sided Wilcoxon signed-rank test. Differences of p < 0.05 were regarded statistically significant.