PROBLEM TO BE SOLVED: To provide a head fixing position determination aid that can perform fixing position determination easily and accurately by reproducing a head fixing position in an MRI diagnosis on a treatment bed in a radiation treatment, and can reproduce a head fixing position, which is positioned first, easily and accurately even in repeatedly performed radiation treatments, and to provide a head fixing position determination support kit using the aid.SOLUTION: A head fixing position determination aid for supporting head fixing position determination for a patient receiving a radiation treatment for the head includes: a temple support member 1 having a temple clamping part for clamping skull temporal regions of the patient a jaw support member 2 for clamping a jaw part of the patient and a connection member 3 for connecting the temple support member and the jaw support member in a manner where a distance between the temple support member 1 and the jaw support member 2 may be changed.SELECTED DRAWING: Figure 3COPYRIGHT: (C)2018,JPO&INPIT【課題】MRI診断時の頭部固定位置を放射線治療時の治療寝台上で再現し、固定位置決めを簡易且つ高精度に行うとともに、繰り返し行われる放射線治療時においても、最初にポジショニングした頭部固定位置を簡易且つ高精度に再現できる、頭部固定位置決定補助具、及びこれを用いた頭部固定位置支援キットを提供する。【解決手段】頭部の放射線治療を受ける患者の頭部固定位置決定を支援する頭部固定位置決定補助具は、患者の頭蓋側頭部を挟持する側頭挟持部を有する側頭支持部材1;前記患者の顎部を挟持する顎支持部材2;及び前記側頭支持部材1と前記顎支持部材2との距離を変動可能に、前記側頭支持部材と前記顎支持部材とを連結する連結部材3を備えている。【選択図】図3
