心外管道全腔静脉-肺动脉连接术后肺血分布的99mTc-聚集白蛋白灌注显像研究
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摘要: 心外管道全腔静脉一肺动脉连接术(extracardiac total cavopulmonary connection,ETCPC)将腔静脉直接与肺动脉相连,使体静脉循环血直接引入肺动脉,可以显著缓解发绀症状,减轻单一心室过重的容量负荷。因其中、远期疗效良好,目前已逐渐取代其他手术方式,成为一些复杂心脏畸形的姑息性治疗手段。本研究采用99mTc-大颗粒聚集白蛋白(99mTc-macro-aggregated albumin,99mTc-MAA)肺血灌注显像,对ETCPC前后肺血灌注情况进行定量研究。
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