摘要
目的探讨CT窗技术在急性胰腺炎诊断中的作用。资料与方法搜集经临床、实验室检查及手术证实的50例急性胰腺炎患者的影像资料,由两名高年资影像诊断医师采取盲法进行软读片,同时采用常规腹部窗宽、窗位和适当调节窗宽、窗位技术观察胰腺周围改变,以胰周脂肪间隙混浊、胰周胰外积液、胰包膜掀起、肾前筋膜增厚等为阳性指征,将调节组中阳性率高于常规组的诊断结果分别与常规组进行配对χ2检验。结果经比较,窗宽100～200HU、窗位-60～-40HU组阳性率最高,且与常规组诊断结果比较阳性率差异有统计学意义(χ2=8.1,P<0.05)。结论在常规腹部窗宽、窗位的基础上适当缩窄窗宽、降低窗位进行观察,有利于发现急性胰腺炎胰腺周围的阳性征象,提高CT在临床诊断急性胰腺炎中的辅助作用。
Objective To investigate the role of CT window technology in the diagnosis of acute pancreatitis. Materials and Methods 50 cases of acute pancreatitis confirmed by clinical,laboratory examination and surgery were collected. The CT images of conventional window width,window level and adjusted window width,window level were evaluated by two senior doctors. The CT features,shch as obscure peripancreatic fat tissue,effusion surrounding pancreas,lifting of pancreas envelope,thickening of renal fascia were considered as positive features of acute pancreatitis. Results When,The positive rate of acute pancreatitis was higher under adjusted window width 100-200HU,window level -60--40HU than that under conventional window width and window level（χ2=8.1,P0.05）. Conclusion Adjusting window width and window level was help to show more positive features of acute pancreatitis.
出处
《临床放射学杂志》
CSCD
北大核心
2010年第5期695-697,共3页
Journal of Clinical Radiology
