PROBLEM TO BE SOLVED: To provide an RF coil device of an MRI used for a head part in which anteflexion of a cervical vertebra is suppressed by naturally fixing a head part of an analyte with less uncomfortable means, without enlarging the RF coil device itself.SOLUTION: An RF coil device 100A includes housings 102 and 104 to be attached to a head part, a coil element, and forehead pads 140a and 140b. The coil element is arranged in the housings, and detects a nuclear magnetic resonance signal emitted from the head part. The forehead pads are formed of a bag body which can be inflated and contracted with injection of a gas, or an elastic material, and arranged on inner surfaces of the housings so as to abut to the forehead of the analyte in a state where the housing is attached to the head part.COPYRIGHT: (C)2014,JPO&INPIT【課題】RFコイル装置自体を大型化させずに、不快感の小さい手段で被検体の頭部を無理なく固定し、頸椎の前屈を抑制するMRIの頭部用RFコイル装置を提供する。【解決手段】RFコイル装置100Aは、頭部に装着される筺体102、104と、コイル素子と、額パッド140a、140bとを有する。コイル素子は、筺体内に配置され、頭部から発せられる核磁気共鳴信号を検出する。額パッドは、気体の注入による膨張及び収縮が可能な袋体、又は、弾性材料で形成されており、筺体が頭部に装着された状態で被検体の額に当接されるように、筺体の内面上に配置されている。【選択図】図7
