超声检测阑尾内外径比值在预测阑尾穿孔中的价值  

The significance of the ratio of appendiceal internal and external diameter measured by ultrasonography for predicting the appendiceal perforation

作　　者：严继萍[1] 高志翔[1] 孙欣[1] 

机构地区：[1]山西省人民医院超声科,山西太原030012

出　　处：《实用医学影像杂志》2006年第2期99-101,共3页Journal of Practical Medical Imaging

摘　　要：目的探讨急性阑尾炎时阑尾的内外径比值在诊断阑尾穿孔中的价值。方法采用回顾性研究,分析121例经手术证实的急性阑尾炎术前的超声测量的阑尾内外径,计算其比值,将阑尾穿孔组(n=31)与未穿孔组(n=90)的超声阑尾直径比进行统计学分析,并采用ROC曲线法确定阑尾内外径比值在诊断阑尾穿孔的截断点。结果阑尾穿孔组的阑尾内外径比值为0.46±0.10,未穿孔组的阑尾内外径比值为0.63±0.5,两组比值差异有显著意义,阑尾的内外径比值以小于0.5可诊断为有阑尾穿孔,其敏感性和特异性分别为83.3%和76.1%。结论超声可应用超声测量的阑尾直径比来预测阑尾穿孔。Objective To study the diagnostic value of ratio of internal and external diameter of appendicitis measured by ultrasound. Methods According to the results of operation, 121 cases of acute appendicitis were divided into perforation group（n = 31 ） and nonperforation group（n = 90）. All 121 cases were examined by ultrasound before operation and the ratio of internal and external diameter were calculated. The results were retrospectively analysed by statistics evaluation system and the value of cut - off were determined by using ROC cure. Results The ratios of internal and external of appendix in perforation group and non - perforation group were （0. 46 ± 0. 10） ond （0. 63 ± 0. 15）, respectively, There were significant differences between two groups（p 〈 0.05）. The cut - off of ratio of internal and external was 0. 4 and the ratio 〈 0.4 could predict perforation of appendicitis with its sensitivity of 83.3 % and specificity of 76. 1%. Conclusion The ratio of internal and external of appendix measured by ultrasound is valuable in predicting appendiceal perforation.

关 键 词：超声检查 急性阑尾炎 阑尾穿孔 

分 类 号：R445.1[医药卫生—影像医学与核医学] R574.61[医药卫生—诊断学]