结直肠癌肝转移MSCT三期增强扫描影像特征及其诊断价值探讨

目的探究结直肠癌肝转移MSCT三期增强扫描影像特征及其诊断价值。方法回顾分析75例结直肠癌肝转移患者的临床资料,分析其CT影像学特征及病灶转移灶分布情况。结果原发病灶位于左侧55例,右侧20例。癌肿位于升结肠9例,横结肠10例,降结肠9例,乙状结肠16例,直乙交界处5例,盲肠5例,直肠21例。肠系膜下静脉汇入肠系膜上静脉27例,肠系膜下静脉汇入脾静脉的患者有31例,肠系膜下静脉汇入脾静脉和肠系膜上静脉汇合处的患者有17例。共发现了320个转移病灶;经MSCT诊断正确的病灶有279个,总的诊断正确率为87.19%。原发病灶有25例位于右侧,50例原发病灶位于左侧,左右结直肠癌肝内转移灶分布差异具有统计学意义(P<0.05)。结论MSCT动态增强扫描可清楚显示结直肠癌肝转移的影像学特征,有助于提高对结直肠癌肝转移的检出率。

Image Feature and Diagnostic Value of Colorectal Cancer with Hepatic Metastasis in MSCT Three-phase Enhanced Scanning

Objective To explore the image feature and diagnostic value of colorectal cancer with hepatic metastasis in MSCT three-phase enhanced scanning.Methods The clinical data of 75 patients with liver metastases from colorectal cancer were retrospectively analyzed.The CT imaging characteristics and the distribution of tumor metastases were analyzed.Results There were 55 cases with the primary lesion on the left side,20 cases with the primary lesion on the right side,9 cases whose cancer was located in the sigmoid,10 cases whose cancer was located in transverse colon,9 cases whose cancer was located in the rectum,16 cases whose cancer was located in descending colon,5 cases whose cancer was located in the cecum and 5 cases whose cancer was located in ascending colon.There were 27 patients whose inferior mesenteric accessed to superior mesenteric vein,31 patients whose inferior mesenteric accessed to the splenic vein,and 17 patients whose inferior mesenteric access to the confluence of superior mesenteric vein and splenic vein.320 metastatic lesions were found in total.There were 279 lesions diagnosed correctly by MSCT,and the overall diagnostic accuracy was 87.19%.There were 25 cases with the primary lesion on the right side and 50 cases with the primary lesion on the left side.The difference was statistically significant in distribution of intrahepatic metastases between left and right colorectal cancer(P<0.05).Conclusion MSCT dynamic enhanced scan can clearly show the imaging features of colorectal cancer with hepatic metastasis,improving the detection rate of colorectal cancer with hepatic metastasis.