采用MSCT肺静脉成像定量观察肺静脉  

Quantitative observation of pulmonary vein anatomic structure with MSCT venography

作　　者：王青菊[1] 李彩英[1] 李敬民[1] 乔桂荣[1] 郝存勖[1] 宋鹏[1] 周艳玲[1] 

机构地区：[1]河北医科大学第二医院影像科,河北石家庄050000

出　　处：《中国医学影像技术》2012年第7期1310-1313,共4页Chinese Journal of Medical Imaging Technology

基　　金：河北省卫生厅重点科技研究计划(20110067)

摘　　要：目的采用MSCT肺静脉成像对肺静脉进行定量观察。方法选择冠状动脉CTA结果正常的500例患者的影像资料,收集心脏原始图像及肺静脉后处理图像,确定心室舒张早期及收缩早期,测量不同时相各肺静脉径线,统计各肺静脉解剖类型、变异及分型。结果 4种肺静脉类型中,Ⅰ型443例(443/500,88.60%),Ⅱ型17例(17/500,3.40%),Ⅲ型4例(4/500,0.80%),Ⅳ型36例(36/500,7.20%)。同一心动周期不同时相肺静脉形态及径线不同,在心室舒张早期时最大,而在心室收缩早期时最小(P均<0.05)。结论 MSCT肺静脉成像能准确、无创地提供肺静脉的解剖信息,有利于指导临床治疗。Objective To quantitatively study the anatomic structure of pulmonary vein（PV） by MSCT venography（MSCTV）.MethodTotally 500 patients who underwent 256-slice CT coronary artery and had negative results were retrospectively analyzed.The raw CT data and reconstructed PV images data were collected,then ventricular early diastolic and ventricular early systole phases were confirmed,the diameters of PV were measured,the types of anatomical variance of PV were calculated.ResultsThere were four types of pulmonary vein,type Ⅰ（443/500,88.60%）,type Ⅱ（17/500,3.40%）,type Ⅲ（4/500,0.80%）,type Ⅳ（36/500,7.20%）.The size and shape of PV varied during cardiac cycles.The maximal size of PV was generally at early diastolic phase,while the minimal size at ventricular early systole phase（P〈0.05）.ConclusionMSCTV of pulmonary vein can noninvasively provide precise information of pulmonary vein anatomy,therefore guiding ablation and thoracic surgery.

关 键 词：肺静脉 解剖 心动周期 体层摄影术 X线计算机 

分 类 号：R543.2[医药卫生—心血管疾病] R814.42[医药卫生—内科学]