摘要
目的利用DSCT对肺静脉正常解剖及变异类型、变异率进行研究,指导房颤导管消融手术的准确定位。方法选择300例通过DSCT冠状动脉成像序列进行肺静脉成像,其中男性210例,女性90例,年龄14～81岁,平均年龄54.8岁,对肺静脉的数量、位置、分型和变异进行分析。结果 300例样本中,双侧均为标准型肺静脉者共144例,肺静脉总变异率为52%,左侧、右侧肺静脉变异分别为123例、102例,其变异率分别为41%、34%,其中右侧肺静脉变异以独立肺静脉较为常见,占60%,左侧肺静脉变异以肺静脉共同口较为常见,占96%;此外,本样本中肺静脉开口数目为2个、3个、4个、5个和6个的分别有19例、72例、196例、36例和4例。结论肺静脉解剖存在较大变异,DSCT增强扫描可准确显示肺静脉解剖及其变异和类型,对指导房颤射频消融及心胸外科手术均具有重要意义。
Objective To study pulmonary vein anatomy and variation types and variation rate by the dual-source CT （DSCT） for guiding catheter ablation of atrial fibrillation（Af）. Methods A total of 300 Patients （210 males, 90 females, aged 14 to 81 years old, with an average age of 54.8 years） was undergone the pulmonary vein imaging by the DSCT coronary angiography imaging sequence. The number and position and classification and variation of the pulmonary vein （PV） were analyzed by multi-angle analysis of observation. Results Of 300 cases, 144 cases were found in both sides of normal pulmonary veins, with the variation rate of 52%. Among these cases, 123 cases had anatomic variation in the left PV, with the variation of 41%, and the additional PV was common relatively, accounting for 600//00, and 102 cases had anatomic variation in the right PV, with the variation rate of 34G, and the common vein opening PV was common relatively, ac- counting for 96%. In addition, according to the number of pulmonary vein opening, there were five types. They were 2 and 3 and 4 and 5 and 6, with 19 and 72and 196 and 36 and 4 cases respectively. Conclusion Pulmonary vein anatomy has high variation in both sides. The enhanced DSCT scan can display pulmonary vein anatomy and their variation and the anatomic classification, which has important value for guiding catheter ablation of atrial fibrillation and cardiothoracic surgery.
出处
《医学影像学杂志》
2013年第3期469-472,共4页
Journal of Medical Imaging
