排粪造影的量化
Quantification of evacuation proctography.
作者信息
Halligan S, McGee S, Bartram C I
机构信息
Department of Radiology, St. Mark's Hospital, London, United Kingdom.
出版信息
Dis Colon Rectum. 1994 Nov;37(11):1151-4. doi: 10.1007/BF02049820.
PURPOSE
This study was designed to determine if evacuation proctography provides a clinically acceptable estimate of the time and completeness of rectal evacuation.
METHODS
Rectodynamics, using a weight transducer and chart recorder to quantify the weight and rate of contrast expelled, was combined with evacuation proctography to assess agreement between the evacuation times recorded and the weight of contrast expelled compared with the lateral area change on proctography.
RESULTS
Mean difference of evacuation times measured by the techniques was 0.1 seconds and the standard deviation of the differences was 1.9 seconds with 95 percent agreement limits of +/- 3.9 seconds. The mean difference between the percentage of contrast evacuated by weight and the change in rectal area on proctography was 4.3 percent. The standard deviation of the differences was 11.9 percent with 95 percent agreement limits of -19.5 percent and +28.1 percent.
CONCLUSION
Evacuation proctography provides a valid estimation of the time and completeness of rectal evacuation.
目的
本研究旨在确定排粪造影是否能提供临床上可接受的直肠排空时间及排空完整性的评估。
方法
利用重量传感器和图表记录器对排出造影剂的重量和速率进行量化的直肠动力学检查，与排粪造影相结合，以评估记录的排空时间与排出造影剂重量之间的一致性，并与排粪造影时直肠侧位面积变化进行比较。
结果
两种技术测量的排空时间平均差异为0.1秒，差异的标准差为1.9秒，95%的一致性界限为±3.9秒。通过重量计算的造影剂排空百分比与排粪造影时直肠面积变化之间的平均差异为4.3%。差异的标准差为11.9%，95%的一致性界限为-19.5%和+28.1%。
结论
排粪造影能对直肠排空时间及排空完整性进行有效评估。
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