< Topic >When urinary organs contrast inspection is done making use of the x-ray perspective photographing device for the alimentary canal, there is many a thing where the interest territory of the bladder and the like comes near the foot side end of the top board, but as for the x-ray tube device and the x-ray sensing station in order for the focus of the x-ray tube device to come to just above of central position of the x-ray sensing station, in order to be linked, there is many a thing which the focus cannot be categorized to that just above concerning the interest territory near the foot side end of the top board. As a result, it is not possible, to restrict the radiation field in suitable width vis-a-vis the interest territory in addition only slanted entrance photographing there is many a thing which cannot be done.SolutionsWhen urinary organs contrast inspection is done, focus 1A of x-ray tube device 1 it makes that it makes move to just above of the end of foot side of x-ray sensing station 3 possible due to the fact that x-ray tube device 1 and x-ray contraction 16 and x-ray sensing station 3 in order to agree to the end of foot side of x-ray sensing station 3, is linked the end of foot side of the radiation field.【課題】消化管用X線透視撮影装置を用いて泌尿器造影検査を行う場合、膀胱等の関心領域が天板の足側端部付近に来ることが多いが、X線管装置とX線像検出部はX線管装置の焦点がX線像検出部の中心位置の直上に来るように連動するため、天板の足側端部付近の関心領域については焦点がその直上に位置することができないことが多い。その結果関心領域に対して照射野を適当な広さに制限することができず、また斜入撮影しか行えないことが多い。【解決手段】泌尿器造影検査を行う場合、X線管装置1とX線絞り16とX線像検出部3が照射野の足側の端部をX線像検出部3の足側の端部に一致するように連動させることにより、X線管装置1の焦点1AをX線像検出部3の足側の端部の直上まで移動させることを可能にする。
