多普勒组织显像技术在生理性肺动脉瓣反流研究中的应用  

Application of Doppler flow image in the study of physiologic pulmonary regurgitation

作　　者：李东[1] 袭学芹 薛明华[1] 尹立岩[1] 毕玉娜[1] 马沛然[2] 

机构地区：[1]山东省交通医院,山东济南250031 [2]山东大学附属省立医院

出　　处：《山东医药》2009年第15期9-10,共2页Shandong Medical Journal

基　　金：山东省交通厅资助项目(项目编号:2006Y024)

摘　　要：目的探讨多普勒组织显像(DTI)技术在生理性肺动脉瓣反流中的应用价值。方法采用DTI技术检测150例正常小儿三尖瓣、肺动脉瓣反流发生情况、反流速度以及肺动脉瓣根部运动速度;并根据反流速度估测肺动脉压。结果三尖瓣、肺动脉瓣生理性反流发生率为31.3%、18.0%,反流速度95%上限为243.3、143.1cm/s。肺动脉收缩压、舒张压95%上限为29.68、8.19 mmHg。有肺动脉瓣反流的小儿其肺动脉瓣根部运动速度显著慢于无肺动脉瓣反流者。结论DTI技术判断生理性肺动脉瓣反流简便、易行;肺动脉瓣反流可能与肺动脉瓣关闭较慢有关。Objective To investigate the application of Doppler flow image in the study of physiologic pulmonary regurgitation. Methods The tricuspid regurgitation and pulmonary regurgitation in 150 normal children were examined by color Doppla flow image （CDFI） and Doppla tissue image （DTI） ,and the pulmonary arterial pressure were estimated. Resuits The incidence of tricuspid regurgitation and pulmonary regurgitation were 31.3% and 18.0% ,the velocity of 95% upper limit of which were 243.3 and 143.1 cm/s. The 95% upper limit of pulmonary arterial pressure is 29.68/8.19 mmHg. The close velocity of pulmonary valve was lower in children with pulmonary regurgitation than that in children without regurgitation. Conclusion DTI is valuable in the determination of pulmonary regurgitation. Pulmonary regurgitation maybe due to its slow movement of closure.

关 键 词：多普勒组织显像 肺动脉压 三尖瓣反流 肺动脉瓣反流 

分 类 号：R725.4[医药卫生—儿科]