Objective To explore the application of 256-Slice spiral CT scan in the diagnosis of congenital heart diseases (CHD) in adults. Methods Ninteen adults with CHD were collected and assigned into group A (7 cases) and group B (12 cases). All the patients were treated by 256-Slice spiral CT scan. Patients in group A underwent CT scan from inlet of chest to cardiac base, while that in group B underwent CT scan from cardiac base to inlet of chest The results of the two groups were compared. Results In group A, 2 cases were found with poor visualization in cor dextrum and S cases with excellent visualization of cordis and great vessels. The reason for the poor visualization is insufficient use of medicine, which result from prolonged circulation time from cor dextrum to cor sinistrum due to pulmonary hypertension. In group B, all the 12 cases were found with satisfactory imaging. Conclusion CT scan from cardiac base to inlet of chest is preferred, which can handle the best scan time and reduce the artifact induced by superior vena cava.%目的 探讨256层螺旋CT在成人先天性心脏病心血管成像的方法及应用.方法对19例临床诊断为先天性心脏病的成人患者行256层CT心血管成像检查,使用两种扫描方式,其中7例为检查方法一:从胸廓入口到心底的扫描方式；另外12例为检查方法二:从心底至胸廓入口的扫描方式,把两种方式的检查结果加以比较分析.结果方法一中有2例由于肺动脉高压致使右心至左心的循环时间加长,最终注药总量不够,右心未显影或显影欠佳,另5例心脏及大血管显影良好；方法二中12例心血管均能达到满意的成像.结论成人先天性心脏病心血管成像时予胸部从心底至胸廓入口的扫描方式更能充分的把握扫描时间,且能减少上腔静脉造成的伪影.
展开▼
