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首页> 外文期刊>Clinical imaging >Evaluation of extrahepatic portal hypertension and surgical portal systemic shunts by intravenous CT portography.
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Evaluation of extrahepatic portal hypertension and surgical portal systemic shunts by intravenous CT portography.

机译：通过静脉CT门静脉造影评估肝外门静脉高压症和外科门静脉系统分流术。

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摘要

The purpose of this study was to evaluate the splenoportal (SP) axis and patency of portal systemic shunts in extrahepatic portal venous obstruction (EHO) by intravenous CT portography (CTP). Fifty-five patients of preshunt EHO, and 21 patients of postshunt (surgical portal systemic shunts) EHO, were subjected to intravenous CTP on a subsecond helical CT scanner. Thin, axial sections and three dimensional (3-D) reconstructions, including maximum intensity projection (MIP) and shaded surface display (SSD), were obtained. The findings were correlated with Color Doppler Flow Imaging (CDFI). In the EHO preshunt group, the site of the block demonstrated on CTP correlated with CDFI in 53 of 55 cases. In the postshunt group, shunt patency evaluation by CTP was in agreement with CDFI in 19 of 21 patients (8 patent; 13 blocked). Two patients in each group could not be evaluated on CDFI, while CTP could provide the appropriate information. There was no false positivity or negativity with CTP in patients evaluated on both modalities. The etiology of EHO, the global view of collaterals, and the 3-D anatomy of SP axis could be well depicted and was well accepted by the surgeons. We conclude that CTP is an impressive new technique that can effectively evaluate pre- and postshunt cases of EHO.
机译：本研究的目的是通过静脉内CT门静脉造影（CTP）评估肝外门静脉阻塞（EHO）的门静脉分流的脾门（SP）轴和通畅性。在亚秒级螺旋CT扫描仪上对55例分流EHO患者和21例分流后（外科门静脉系统分流）EHO患者进行了静脉CTP。获得了薄的轴向截面和三维（3-D）重建，包括最大强度投影（MIP）和阴影表面显示（SSD）。这些发现与彩色多普勒血流显像（CDFI）相关。在EHO预分流组中，在55例病例中有53例在CTP上显示的阻滞部位与CDFI相关。在分流后组中，CTP的分流通畅性评估与CDFI一致，适用于21例患者中的19例（8例专利; 13例被屏蔽）。每组中的两名患者无法接受CDFI评估，而CTP可以提供适当的信息。在两种方式下评估的患者中，CTP均无假阳性或阴性。 EHO的病因，侧支的全貌以及SP轴的3-D解剖结构可以很好地描绘出来，并为外科医生所接受。我们得出结论，CTP是一种令人印象深刻的新技术，可以有效地评估EHO的事前和事后发现情况。

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