摘要
目的总结急性坏死性胰腺炎(ANP)的多排螺旋CT(MDCT)后处理重建影像特征并评价其对ANP临床分度的意义。方法搜集经16排MDCT常规平扫及增强扫描并确诊为ANP的病例45例,通过应用曲面重建等图像后处理进行了CT严重度指数(CT severity index,CTSI)计分为轻(小于3分),中等(4～6分)和重度(7～10分),同时还进行了临床Ranson分级为轻、中等和重度。结果 45例ANP中CTSI计分分级:轻度0例,中度25例(55.6%),重度20例(44.4%);按临床Ranson分级:轻度3例(6.7%),中度20例(44.4%),重度22例(48.9%);CTSI计分分级与临床Ranson分级存在正相关性。结论 MDCT重建图像可以清晰显示ANP的胰腺实质坏死和腹膜后扩散等征象,尤其是胰腺曲面重建图像对ANP临床严重度的评价有重要价值。
Objective To analyze the findings of acute necrotizing pancreatitis（ANP） on multidetector row helical computed tomography（MDCT） images with postprocessing reconstruction and to evaluate their significance for the severity grading of ANP.Methods Forty-five patients with clinically considered ANP underwent MDCT scans of the abdomen without and with contrast-enhanced.The source images were reconstructed by using MIP and CPR.CT scans were scored as mild（〈3 points）,moderate（4-6 points）,and severe（7-10 points） using the CT severity index（CTSI）,while the clinical severity of ANP was graded as mild,moderate,and severe degree using Ranson criterion.Results Among 45 ANP patients,CTSI was graded as mild（n=0）,moderate（n=25,55.6%）,and severe（n=20,44.4%）,while Ranson criterion was graded as mild（n=3,6.7%）,moderate（n=20,44.4%）,and severe（n=22,48.9%）.These data suggested that there was positive correlation between CTSI and Ranson criterion.Conclusion MDCT images acquired from postprocessing reconstruction can clearly show pancreatic parenchyma necrosis and retroperitoneal diffusion,especially CPR images has important value for evaluating the clinical severity of ANP.
出处
《实用医学影像杂志》
2010年第3期163-165,共3页
Journal of Practical Medical Imaging
关键词
急性坏死性胰腺炎
多排螺旋CT
严重度分级
Pancreatitis
acute-necrotizing
Tomography
X-ray computed
Severity grading
