CTA技术对心肌桥-壁冠状动脉血管的形态学诊断分析

摘要

目的：讨论冠状动脉CT血管造影(CTA)技术对心肌桥-壁冠状动脉(MB-MCA)血管的形态学诊断价值。方法：对北京北亚医院心内科门诊及住院的疑似MB-MCA而自愿行CTA及冠状动脉造影(CAG)检查的377例患者资料进行总结分析，记录MB-MCA的发生类型及MB长度和MCA狭窄程度，并采用SPSS17.0统计学软件处理分析。结果：377例患者最终有103例确诊为MB-MCA(110段MB-MCA)。CTA与CAG两种检查手段对浅在型与深在型MB-MCA诊断经过Kappa分析比较后，Kappa值分别为0.803和1.000，两种检查方法在MB-MCA诊断中具有良好的一致性；CTA与CAG两种检查手段在诊断浅在型与深在型MB方面比较其差异有统计学意义(t=-5.149，t=-2.457；P＜0.05)。结论：在诊断MB-MCA方面，CTA技术与CAG具有较好的一致性，可实现优势互补，结合各自的优点提高MB-MCA的诊断准确率，为临床提供更加丰富的诊断信息。%Objective: To discuss the morphologic diagnosis value of CTA technical on myocardial bridge-wall coronary artery. Methods: Three hundred and seventy seven patients suspected MB-MCA and with CTA and CAG inspection voluntary in cardiology clinic or hospital were analyzed, and the occurrence of type MB-MCA and MCA MB length and degree of stenosis were recorded, the results were analyzed using SPSS17.0 statistical software. Results:103 cases of 377 were diagnosed as final MB-MCA, and there were 110 MB-MCA in total. CTA and CAG checked by means of two kinds of shallow and deep in the model type MB-MCA diagnostic analysis were compared through Kappa analysis, the Kappa value were 0.803 and 1.000. Two methods had a good consistency in the diagnosis of MB-MCA;There were statistically significant in CTA and CAG two kinds of examination methods in the diagnosis of superficial in type (t=-5.149)and deep in the type MB (t=-2.457, P=0.024)(P<0.05). Conclusion:The multi-slice spiral CT angiography CTA technology has good consistency with CAG in MB-MCA diagnosis, can achieve complementary advantages, can combine their respective advantages MB-MCA to improve the diagnostic accuracy for clinical richer diagnostic information.