This invention while converting the physical condition of the inspection region of the suffering inspection person, with the medical picture diagnostic device is the physical condition converter in order to do photographing in plural physical conditions. As for the physical condition converter of this invention, inside the mat of sack condition, the balloon for the head and the balloon for the trunk are dispersed are arranged, making use of the compressor and valve mechanism vis-a-vis these two balloons, in the balloon for the head complete contraction -> expansion in -> the operation of largest expansion collectively in parallel, largest expansion -> expansion in -> complete contraction, in addition in the balloon for the trunk by the fact that it does, leaning forward rank -> neutral rank -> to reflexed rank it is possible the cervical vertebra of the suffering inspection person consecutively to change.本発明は、医用画像診断装置により被検者の検査部位の体位を変換しながら複数の体位で撮影を行なうための体位変換装置である。本発明の体位変換装置は、袋状のマット内に、頭部用バルーンと体幹部用バルーンが分散配置され、コンプレッサとバルブ機構を用いてこれら二つのバルーンに対し、頭部用バルーンにおいて最大膨張→中程度の膨張→完全収縮、また体幹部用バルーンにおいて完全収縮→中程度の膨張→最大膨張の動作を併せて並行して行なうことで、被検者の頚椎を前傾位→中立位→後屈位へ順次変えることができる。
