逆行性尿道撮影における術者のX線被曝回避—尿道造影用陰茎把持器の使用による

A NEW DEVICE TO REDUCE X-RAY EXPOSURE OF THE EXAMINER DURING THE PROCEDURE OF RETROGRADE URETHROGRAPHY

　逆行性尿道撮影は泌尿器科領域では不可欠のX線検査法であるが，撮影時術者のX線被曝が避け難い問題である。それを避ける目的で開発された陰茎把持器（サニーホルダー）が加藤，鈴木^1）によつて紹介された。われわれも1975年末からこれを用いているが，使用が簡便で術者の被曝がほぼ完全に回避できることが分つたので報告する。

The use of the new device "Sanii-horud-a" designed to hold the patient's penis indirectly during urethrography enabled the examiner to avoid unnecessary direct exposure of x-ray. In the ordinary way in which the patient's penis was held directly with the examiner's left hand, as much as 670 mRems of x-ray were recorded at the examiner's left wrist with two exposures (anteroposterior and oblique view). It is possible from the report of Koga and his associates that the examiner's left hand within the field of direct exposure would receive more than 1, 000 mRems for each patient.