320排CT对房颤射频消融的临床应用

Clinical Application of 320-row CT in Radiofrequency Ablation of Atrial Fibrillation

目的探讨320排动态容积CT冠状动脉成像在房颤射频消融中的应用价值。方法选取我院收治的60例房颤患者及40例健康者(对照组)为研究对象,采用320排动态容积CT冠状动脉成像诊断肺静脉异常、左心房血栓及冠状动脉的情况。结果房颤组有23例肺静脉变异(38.3%),对照组有17例发生变异(34.0%)。房颤组与对照组在不同性别以及不同病变部位方面肺静脉的变异率均无统计学意义(P>0.05)。房颤组的左、右上肺静脉口长径、短径,左、右下肺静脉口长径、短径均大于对照组,差异有统计学意义(P<0.05)。320排CT对左心房血栓的诊断率与超声心动图无统计学意义(P>0.05)。60例心房纤颤患者发现有42例患者有冠状动脉硬化斑块病变,管腔呈轻-重度狭窄。结论 320排动态容积CT冠状动脉成像能够较好地诊断房颤患者肺静脉异常的情况,可作为房颤射频消融术前常规的影像学检查手段。

Objective To investigate the clinical value of 320-row dynamic volume CT coronary angiography in radiofiequency ablation for atrial fibrillation in. Methods 60 cases of patients with atrial fibrillation in our hospital and 40 healthy subjects （the control group） were as the research object; they were used 320-row dynamic volume CT coronary angiography and abnormal enhancement of left atrial thrombus in the diagnosis of puhnonary vein. Results There were 23 cases （38.3%） of variation of puhnonary in atrial fibrillation group, while 17 （34.0%） cases in the control group. The variation of puhnonaW vein in the AF group and the control group were no statistically significant in different gender and different parts （P〉0.05）. The left and right upper puhnonary vein long diameter and short diameter, let} and right, vein under long diameter and short diameter in the AF group was longer than that in the control group, the difference was statistically significant （P〈0.05）. Left atrial thrombus diagnosis rate by 320-Row and echocardiography was no statistically significant （P〉0.05）. In 60 cases of patients with atrial fibrillation. 42 patients had coronary plaque lesions lumen which showed mild- severe stenosis. Condition 320-row dynamic volume CT coronary angiography can diagnosis puhnonary venous anomalies well in atrial fibrillation patients, which can be used as a routine imaging before atrial fibrillation ablation imaging method.