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- W3029126537 abstract "Objective To assess the clinical value of dual-source CT (DSCT) in the detection and dynamic evaluation of anomalous origin of the fight coronary artery (RCA) from the left coronary sinus of Valsalva with an interarterial course. Methods Eleven patients with anomalous origin of RCA from the left coronary sinus of Valsalva with an interarterial course were included in this study. And 11 patients with normal origin of RCA were recruited as the control group. The origin and course of RCA were determined on MIP,VR, and virtual endoscopy (VE) images. The diameter of proximal segment of RCA was measured in all phases; systolic stenosis rate of the proximal RCA was calculated. The angle between the ascending aorta and RCA was measured. Paired student t test was used to analyze the differences of proximal and middle segments of RCA in different cardiac cycles, and the diameter of the proximal RCA and the angle between ascending aorta and RCA in two groups were compared using independent sample t test. Results Average heart rate in 11 patients was 72. 8 ± 7. 7 beats per minute. Reformatted images could clearly display RCA originating from the left coronary sinus of Valsalva with smaller orifice, coursing in an acute angle (16. 7°±4.0°) between the ascending aorta and pulmonary artery trunk. The proximal RCA was narrower at systole [(1.8±0.6) ram], while it partly becomes normal at diastole (2. 1±0.6). Compared with the control group [systole (3. 5 ± 0. 6) mm; diastole (3. 8 ± 0. 6) mm], P < 0. 05, the diameter of the proximal RCA in 11 patients had persistent stenesis in the entire cardiac cycle. Cuadusion DSCT can dearly show anomalous origin and course of RCA, dynamically evaluate the diameter changes of proximal RCA in the entire cardiac cycle, providing useful clues for interpretation of myocardial ischemia. Key words: Coronary vessel anomalies; Tomography; X-ray computed; Angiocardiography" @default.
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- W3029126537 date "2009-09-10" @default.
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- W3029126537 title "Anomalous origin of the right coronary artery from the left coronary sinus of valsalva with an interarterial course: dual-source CT evaluation" @default.
- W3029126537 doi "https://doi.org/10.3760/cma.j.issn.1005-1201.2009.09.011" @default.
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