腹膜后间隙感染性病变的多排螺旋CT征象分析

目的 结合解剖学基础，探讨腹膜后间隙感染性病变的多排螺旋CT表现。方法 收集30例CT扫描发现腹膜后间隙存在异常、经临床、实验室检查等证实为感染性病变的病例，分析其CT和临床资料。CT检查包括平扫和增强后门静脉期扫描，并对CT数据进行冠、矢状位的多平面图像重组等后处理。结果 胰腺炎和肾脏感染是造成腹膜后间隙感染性改变的主要病因。依解剖区域的不同。炎症在腹膜后不同间隙内(肾旁前间隙、肾周间隙和肾旁后间隙)呈现不同的分布特点和相应的CT征象；炎症的跨间隙蔓延现象也较普遍。结论 多排螺旋CT可以全面、准确地显示腹膜后间隙感染性病变的原发病灶、毗邻组织器官、炎症蔓延范围等解剖细节。

Analysis of Multi-Detector-Row Spiral CT Signs of Inflammatory Diseases in Retroperitoneal Space

Objective By using multi detector row spiral CT (MDCT), to investigate the CT imaging features of inflammatory diseases in retroperitoneal space with correlation of radiological anatomy.Methods The clinical and laboratory dada of 30 patients with proven inflammatory diseases of retroperitoneal space were collected. All patients underwent MDCT plain scanning and portal venous acquisition. CT imaging data generated at portal venous phase were processed with coronal, sagittal and oblique multi planar reformation (MPR) technique.Results Acute pancreatitis and various types of renal infection were the two main sources of retroperitoneal inflammation. Depending on the specific anatomic locations, retroperitoneal inflammation of different subspaces demonstrated characteristic imaging features. Spreading of inflammatory process across subspaces was also quite common.Conclusion MDCT is the imaging method of choice to depict comprehensively and clearly the inflammatory diseases of various retroperitoneal spaces.