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目的探讨64层螺旋CT(64-MSCT)成像技术在先天性心脏病(CHD)心内结构异常的应用价值。资料与方法对经手术证实的23例CHD患者资料进行回顾性分析,按5分评分法分析术前心脏CT图像质量,比较CT与超声心动图(ECHO)及手术结果。结果(1)>6岁年龄组的CT图像质量优于≤6岁年龄组。(2)23例CHD心内结构异常共62处,MSCT、ECHO及两者联合诊断正确率分别为90.82%、95.28%及98.38%,两两比较均无统计学差异(P>0.05)。(3)多平面重组(MPR)多方位成像是诊断心内结构异常的主要技术。结论了解64-MSCT对CHD成像质量的影响因素,有利于提高对CHD心内结构异常的诊断准确率。
Objective To investigate the value of 64-slice spiral CT (64-MSCT) imaging in the diagnosis of structural abnormalities in the heart of patients with congenital heart disease (CHD). Materials and Methods The data of 23 CHD patients confirmed by surgery were retrospectively analyzed. The preoperative cardiac CT image quality was analyzed by 5 points scoring system, and CT and echocardiography (ECHO) were compared with the surgical results. Results (1) The quality of CT images of 6-year-old group was better than that of 6-year-old group. (2) Twenty-three cardiac structural abnormalities were found in 23 cases of CHD. The diagnostic accuracy rates of MSCT, ECHO and their combination were 90.82%, 95.28% and 98.38% respectively. There was no significant difference between the two groups (P> 0.05). (3) multiplanar reconstruction (MPR) multi-directional imaging is the main technology to diagnose abnormal heart structure. Conclusions Understanding of 64-MSCT of CHD imaging quality factors that help to improve the diagnostic accuracy of CHD heart structural abnormalities.