摘要
目的:探讨多层螺旋CT(MSCT)多平面及曲面重组(MPR/CPR)技术在急性阑尾炎诊断中的临床应用价值。方法:25例临床资料完整的急性阑尾炎患者行CT平扫,16例加CT增强扫描。采用10mm层厚、层距,一次屏气下行全腹部CT扫描,将原始横断面CT图像用2.5mm层厚、1.25mm间隔重叠50%重建,获得轴面源像(ASI),然后将ASI像传输至后处理工作站,用Reformat软件行MPR,获得冠状面、矢状面及任意斜面MPR阑尾图像,在MPR基础上,再沿阑尾走行方向管腔中心划曲线,将沿曲线轨迹分布的体素重组,获得CPR阑尾图像。结果:MPR/CPR阑尾成像成功率为100%,图像直观,能清晰地显示急性阑尾炎及其并发症,诊断正确率达96%(24/25)。结论:MPR/CPR技术可获得良好的阑尾图像,能直观地显示阑尾全貌,诊断准确率高。
Objective：To explore the clinically applied value of multiplanar and curved planar reconstruction （MPR/ CPR） with multislice spiral CT （MSCT） in diagnosing acute appendicitis. Methods： The whole abdominal CT scanning of 25 patients was performed with a 10ram slice thickness and interval in a single breath-hold. The CT axial images were recon structed to bring out axial source images （ASI） with a 2.5ram slice thickness and 1.25ram interval. The data of ASI were conveyed to workstation and dealt with MPR. CPR was performed after MPR again. Results： The successful rate of MPR/ CPR technique was 100%. MPR/CPR with high quality could be obtained with MSCT to show clearly acute appendicitis and complication. The accuracy of MPR/CPR was 96 % （24/25）. Conclusion： MPR/CPR can directly display acute appendicitis and complication. MPR/CPR has high accuracy for diagnosis of acute appendicitis.
出处
《放射学实践》
2008年第6期643-646,共4页
Radiologic Practice
