结肠运输试验的价值、诊断标准及临床应用

目的：探讨结肠运输试验的准确性及其临床应用价值。方法：连续3 d摄入不同形状的不透X线标记物随踪摄腹部平片5 d，回顾性分析100例受试者的110次检查。结果：3种标记物运输结果基本相符者98例次(89．1％)，明显不符者12例次(10．9％)；46例运输正常的138枚胶囊中9枚胶囊的标记物直至96 h方基本排空；72 h和96 h不同标记物剩余数相差10粒以上者分别为19(1 7．3％)和12(10．9％)例次；重复检查的10例中4例的2次运输结果不符。结论：结肠功能的不稳定性决定了运输试验具有一定程度的偶然性和不可靠性。3枚胶囊5片法能最大限度地避免检查的失误，在决定结肠慢运输病人切除结肠前应采用本法复查。

The Value of Clinical Application of the Colonic Transit Test

Objective:To study the value of clinical application and the accuracy of the colonic transit test.Methods:3 sets of distinctive radiopague markers were ingested for three succesive days 24h after ingestion of the first set of markers;the daily abdominal plain films were obtained for five succesive days,with a 24h interval .The 110 examinations of 100 cases were analysed retrospectively.Results:The transit results showed no obvious difference of three types of markers for 98 times (89.1%) and the results showed obvious difference for 12 times (10.9%). 9 in the 138 sets of radiopague markers of 46 cases showed normal transmission,and were excreted fundamentally until 96 h. The cases were 19 and 12 respectively on the 72 h and 96 h,in whom the difference between maximum and minimum of remaining different markers were equal to or more than 10 granules. In the 10 cases of the repeated examination, the obvious different results of twice colonic transit tests appeared in 4 cases.Conclusion:The result of colonic transit test possesses fortuity and independability since the shakiness of colonic function. The mistake would be avoided to maximun by applying the mentioned method,in which 3 sets of distinctive markers were ingested and 5 abdominal X rays were taken. This method should be performed before the resection of colon for the patient with slow transit constipation.