梗阻性黄疸影像诊断课件.ppt

1、Fig.1:US transverse scan shows a cystic lesion measuring 9.2 x 6.7 x 5.6 in the subhepatic region posteromedial to gallbladder.（三）超声形态形态 枯枝状:仅于肝门附近见少数胆管显影呈细条状,由近及远逐渐变细 残根状：肝内胆管近端扩张较显著，而远端突然变细 软藤状：肝内胆管从肝门向肝脏周围扩张，走行迂曲枯枝征软腾征肝内胆管扩张的形态肝内胆管扩张的形态 良恶性胆道梗阻的鉴别良恶性胆道梗阻的鉴别 肝内胆管结石胆囊石合并胆总管石平扫期平扫期动脉期门脉期静脉期肝门区胆管癌动脉期

2、门脉期 手术后病理结果手术后病理结果为 胆总管下段腺癌 平扫期动脉期肝总管癌门脉期静脉期胆总管癌动脉期门脉期静脉期动脉期门脉期 MRI with the combination of MRA and MRCP technique has the unique capability of allowing a noninvasive comprehensive examination within a single diagnostic modality for evaluation of the full range of pancreatic diseases.Multidetector row helical CT门脉期静脉期Thank you