Diagnostic Value of Multi-slice CT in Pancreatogenic Segmental Portal Hypertension and a report of 42 cases
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摘要: 目的分析胰源性区域性门静脉高压(pancreatogenic segmental portal hypertension,PSPH)的多层螺旋CT(MSCT)表现,探讨MSCT对该病的诊断价值。方法使用16排螺旋CT对42例PSPH患者行上腹部CT平扫及增强扫描,采用图像后处理技术显示脾静脉及侧枝血管情况。结果孤立性脾静脉阻塞30例,其侧支血管食管静脉(9.5%)、胃冠状静脉(76.19%)、胃短静脉(85.71%)、胃网膜静脉(95.24%)、胃结肠干(23.81%)曲张;非孤立性脾静脉栓塞12例,其中伴肠系膜上静脉阻塞8例,其属支胃结肠干(19.05%)、结肠右上静脉(16.67%)、结肠中静脉(14.29%)、胰十二指肠前上静脉(19.05%)有不同程度曲张。伴门静脉海绵样变5例。结论MSCT对PSPH的脾静脉阻塞及其胃周迂曲扩张的侧枝静脉显示具有重要价值。Abstract: Objective To analyze MSCTfeatures of PSPHand to evaluate the value of MSCT in clinical settings and imaging diagnosis of PSPH.Methods A 16-detector row spiral CT scanner was used to perform plain and muti-phase contrast enhanced abdominal scanning in 42 patients with PSPH.Various image post-processing techniques were applied to depict abnormal splenic vein and the collateral vessels of PSPH.Results In 30 cases with isloated splenic vein occlusion, esophageal vein (EV, 9.5%) , coronary gastric vein (CGV, 76.19%) , short gastric vein (SGV, 85.71%) gastroepiploic vein (GEV, 95.24%) and gastrocolic trunk (GCT, 23.81%) were varicose and dilated, respectively.In 12 non-isloated splenic vein occlusion, associated with 8 cases SMV occlusion, other collateral veins such as gastrocolic trunk (GCT, 19.05%) , the right superior colic vein (RSCV, 16.67%) , middle colic vein (MCV, 14.29%) and anterior superior pancreaticoduodenal vein (ASPDV, 19.05%) were seen as well.Meanwhile 5 cases assoicated with cavernous transformation of portal vein.Conclusion MSCT and image post-processing techniques are of great value for the diagnosis of PSPH in Splenic vein occlusion and collateral vessels around.
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Key words:
- pancreatic diseases /
- splenic vein /
- portal hypertension /
- collateral circulation /
- tomography
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