Research on the parameter setting on multi-slice spiral CT scan infants with congenital heart disease

VernacularTitle:多层螺旋CT扫描婴幼儿先天性心脏病条件设置研究
Author: Yi YANG ; Yan BAI
Publication Type:Journal Article
Keywords: Tomography,X-ray computed; Beam hardening artifact; Congenital heart diseases; Infants
From: China Medical Equipment 2013;(9):9-11
CountryChina
Language:Chinese
Abstract: Objective: To discuss the methods and experience of 64-slice spiral CT which used in infant cases with congenital heart disease, to select the appropriate scan parameters for reducing artifact and the radiation dose. Methods: Thirty-five cases with congenital heart disease were arranged CT examination by using Philips Brilliance 64-slice spiral CT scanner with Blous Tracking techniques. Results: All the images of the heart chambers, pulmonary artery, pulmonary vein, the ascending aorta and the descending aorta contrast agent filling showed good and had clear display. The density of superior vena cava is moderate. The various vascular CT value is approximate, no hardening artifacts. The atrioventricular of Cardiac and vascular of contrast agent filled fully and had clear boundary, no significant artifacts and no effect on the impact reconstruction. Conclusion: Appropriate adjustment of scanning parameters can reduce hardening artifact and the impact of artifacts. Following the principle of as low as reasonably achievable (ALARA) can obtain diagnostic images and reduce radiation damage to the infant.