Abstract：Objective: To study the velocity selection of dynamic defecography in constipation of functional outlet obstruction, and evaluate its diagnostic value. Methods: The 217 patients with constipation of functional outlet obstruction underwent digital fluoroscopic imaging. The velocity selection of dynamic defecography were selected as 1 frame per second, 3 and 4 frames per second. The imaging materials including all kinds of velocity and morphologic change of three kinds diseases were analyzed by a blind study, and the data were processed by statistics. Results: Significant differences in constipation of functional outlet obstruction were observed between 1 frame per second and 3 or 4 frames per second. The dynamic defecography with 3 or 4 frames per second was superior to 1 frame per second. There were no differences between 3 frames per second and 4 frames per second. Conclusion: The dynamic defecography with 3 or 4 frames per second can both present three kinds of diseases. But thinking of the X-ray dose which patient accepted and the waste of X-ray unit, the dynamic defecography with 3 frames per second is a satisfactory method in diagnosing constipation of functional outlet obstruction.
雷志丹;贾武林;文泽军;李建民;任金祥. 动态排粪造影的采集速度选择及其对功能性出口梗阻性便秘的诊断价值[J]. , 2007, 18(2): 130-132.
LEI Zhi-dan;JIA Wu-lin;WEN Ze-jun;LI Jian-min;REN Jin-xiang. Velocity selection of dynamic defecography and its diagnostic value in constipation of functional outlet obstruction. , 2007, 18(2): 130-132.
2007, Vol. 18 
