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目的分析门静脉(PV)和肠系膜上静脉(SMV)血栓形成的超声显像特征及诊断价值。方法搜集经手术与病理证实的PV和SMV血栓形成患者12例,全部行超声显像。结果直接征象为血管内低回声团,7例为急性期亚急性期血栓,管腔内为均匀低回声团;4例为慢性期血栓,管腔内为不均匀低回声团;间接征象:肠腔扩张积液10例,扩张小肠40～60mm:肠壁增厚12例,增厚5～24mm;腹腔积液12例。结论超声显像是诊断PV和SMV血栓形成并肠道缺血敏感有效的方法。
Objective To analyze the characteristics and diagnostic value of ultrasonography in thrombosis of portal vein (PV) and superior mesenteric vein (SMV). Methods 12 cases of PV and SMV thrombosis confirmed by operation and pathology were collected and all were examined by ultrasound. The results of direct signs of intrahepatic hypoechoic group, 7 cases of acute subacute thrombosis, luminal uniform hypoechoic group; 4 cases of chronic thrombosis, luminal non-uniform hypoechoic group; Indirect signs of intestinal 10 cases of dilated effusion, dilation of the small intestine 40 ~ 60mm: 12 cases of thickening of the intestinal wall, thickening 5 ~ 24mm; 12 cases of ascites. Conclusion Ultrasound imaging is a sensitive and effective method to diagnose thrombosis of PV and SMV and intestinal ischemia.