多层螺旋CT对急性胰腺炎的临床应用

Clinical application of the multislice spiral CT on acute pancreatitis

目的：目的：探讨如何准确、合理运用多层螺旋CT扫描技术及重建技术对急性胰腺炎的诊断。方法：扫描前30min口服2％泛影葡胺溶液300mL，扫描前再服同样浓度泛影葡胺溶液300mL。采用飞利浦brilliance6层螺旋CT机，对患者检查部位行全容积扫描，扫描技术参数：患者体位（头先进）；准直器宽度（6×0.6mm）；旋转时间（0.75s／r）；使用螺旋扫描；电压用120KV；有效mAs（80-250mAs）；重建间隔（1mm）；螺距（1.2）；重建层厚（1mm）。先行常规扫描，然后行增强扫描，再用三维重建（3D）MPR进行后处理。结果：急性胰腺炎时表现胰腺弥漫性增大，密度低，轮廓不清，边缘模糊，周围渗出积液等改变。结论：多层螺旋CT对急性胰腺炎及并发症显示细微、准确，有较特征性表现，对其诊断价值较大。

Objective ： Approach how to diagnose acute pancreatitis by scanning and reconstruction technique of muhislice spiral CT exactly and reasonably. Method：Take 2% Cardiografin Liq. for 300ml 30min before scanning, and the same dose just minites before scaning. Take a volume scanning to the patients＇check point by the PILLIPS brilliance 6 layers spiral CT. Scan technical parameters：body position （head first）; collimating apparatus width（6 0.6mm） ; spintime （0.75 s/r） , helical scanning ; voltage （ 120KV ） ; effective mAs （80250mAs） ; reconstruction interval （1mm）; pitch （1.2） ; reconstruction increment （1mm）. Take a convention scanning first, then a contrast enhancement, and last take the patient a three - dimensional reconstruction. Results The pancreas was widespread enlarged with low density, unclear contour,clouding margin and exudativing effusion when pancreatitis happened. Conclusion：Muhislice spiral CT has more diagnostic value by displaying the acute pancreatitis, its complication and the key points very slightly and exactly.