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目的对比螺旋CT小剂量、常规剂量多普勒超声3种方法诊断急性阑尾炎的价值。方法 200例急性阑尾炎可疑患者分别行CT小剂量、常规剂量和超声检查,以病理确诊为标准,比较3种方法诊断急性阑尾炎的阳性率、阴性率和准确度。结果螺旋CT检查的阳性检出率远大于多普勒超声,差异有统计学意义(P<0.05);螺旋CT小剂量与常规剂量阳性检出率相近,差异无统计学意义(P>0.05)。螺旋CT的检出率准确度远大于多普勒超声(P<0.05)。螺旋CT小剂量与常规剂量的检出准确度相近(P>0.05)。结论相较于多普勒超声诊断,螺旋CT诊断急性阑尾炎较超声有更高的准确率,CT小剂量与常规剂量相比无显著性差异,螺旋CT小剂量扫描可作为急性阑尾炎检查的重要的筛选手段。
Objective To compare the value of low-dose spiral CT and conventional Doppler ultrasound in the diagnosis of acute appendicitis. Methods 200 cases of acute appendicitis suspicious patients were performed CT small dose, conventional dose and ultrasound examination, pathological diagnosis as the standard, the comparison of the three methods of diagnosis of acute appendicitis positive rate, negative rate and accuracy. Results The positive detection rate of spiral CT was much higher than that of Doppler ultrasound (P <0.05). There was no significant difference between the small dose of spiral CT and the conventional dose (P> 0.05) . The accuracy of spiral CT was much higher than that of Doppler ultrasound (P <0.05). The detection accuracy of the spiral CT small dose and conventional dose were similar (P> 0.05). Conclusion Compared with Doppler ultrasound diagnosis, spiral CT in the diagnosis of acute appendicitis has higher accuracy than ultrasound, CT small dose compared with the conventional dose was no significant difference, spiral CT low-dose scan can be used as an important acute appendicitis examination Screening means.