摘要
目的探讨螺旋CT多期扫描在SMV梗塞中的诊断价值。资料与方法7例SMV梗塞患者,行CT平扫、门静脉期增强扫描及延迟扫描,分析其CT表现特点,并与超声及手术后病理结果对照。结果临床病理证实的SMV主干梗塞患者CT平扫均表现肝脏呈等密度,肠系膜充血水肿。增强扫描显示SMV内圆形充盈缺损,肠管扩张、肠壁增厚、靶征、肠壁强化程度减低等肠缺血表现。门静脉供血减少,门静脉期延迟,肝脏一过性血供不足。延时扫描对比剂在肝脏内分布均匀。结论螺旋CT多期扫描在SMV梗塞诊断中具有重要价值。
Objective To explore the diagnostic value of helical CT multistage scanning in superior mesenteric vein （SMV） infarction. Materials and Methods 7 patients with SMV infarction performed CT plain scan, portal vein enhancement scan and delayed scan. CT appearances of SMV infarction were analyzed and compared with ultrasound and postoperative pathology consequence. Results In patients with SMV infarction in trunk vein proved by clinical pathology, homogeneous attenuate in liver, congested and edema of mesentery were displayed on plain scan. Round filling defect in SMV and intestines ischemia including intestines dilated, intestinal wall thickening, target sign, less enhancement degree were displayed on contrast scan. Insufficient. blood supply in portal vein and liver were showed on contrast scan. Inhomoge- neous attenuate in liver parenchyma was showed on the arterial phase, and turned to homogeneous attenuate on delayed phase. Conclusion Helical CT multistage scan have a important value in diagnosing SMV infarction.
出处
《临床放射学杂志》
CSCD
北大核心
2008年第6期814-816,共3页
Journal of Clinical Radiology
