Relationship between vesico-ureteral reflux and trigonal configulation (by using computer assisted three dimensional mapping device)

利用自行研制并申请专利的膀胱输尿管三维标测装置，研究膀胱输尿管反流与三角形构型的关系。专利4-95002，美国专利方法：研制三维标测装置和软件。该装置由多个臂和多个角度传感器组成。用C语言编制软件计算三角形的三维坐标，将传感器测得的角度数据输入计算机，软件显示三角形的形态。因此，三角被拉伸和转化与膀胱充盈。我们比较了VUR和非VUR病例的拉伸率。结果表明，在非VUR病例中，椎弓根仅沿纵向伸展，而在VUR病例中，椎弓根的纵向和横向伸展相等。提示双侧输尿管口间的肌肉发育在预防VUR中起重要作用，VUR组与非VUR组之间的牵张方向差异在VUR诊断中具有重要意义。

Relationship between vesico-ureteral reflux and trigonal configuration was studied by using three dimensional mapping device that was developed and patented by me. (Japan. Pat. 4-95002, USA Pat. 5228429 EPC pat 92100009.7) Methods :Three dimensional mapping device and software was developed for this purpose. This device consists of multi-linked plural arms and angle sensors. Software was developed by using programming language "C" to calculate the three-dimensional co-ordinate of the trigon.Angle data from the sensors were transferred to the computer and trigonal configuration was displayd by the software.Results :The ureteral orifices were not fixed but moving extensively with filling of the bladder. Therefore, trigonum were stretched and transformed with filling of the bladder. We compared the stretching rates between VUR and non-VUR cases. The result shows that treigonum stretched only longitudinally in non-VUR case however in VUR case stretched equally between longitudianl and lateral direction. This fact suggests that muscular development between bilateral ureteral orifices plays an important role to prevent VUR.So stretching direction deferent between VUR and non-VUR groups appears to have a remarkable importance in VUR diagnosis.