PROBLEM TO BE SOLVED: To provide a measuring system or image processing system capable of quantitatively recognizing fiber bundles passing through an arbitrary observation area.SOLUTION: A static magnetic field and high-frequency signals are applied to a subject and nuclear magnetic signals from the subject are received (401). The diffusion tensor is calculated from the nuclear magnetic signals (402). Fiber bundles passing by a plurality of prescribed starting points are extracted as groups of coordinate points for the respective fiber bundles based on the diffusion tensor calculated by a calculating part in the target range for receiving the nuclear magnetic signals of the subject (406). At least one observation area is set for the target range for receiving the nuclear magnetic signals (408). The fiber bundles with at least one of the coordinate point groups included in the observation range are discriminated from the plurality of fiber bundles extracted by a fiber bundle extracting part and are counted (409).COPYRIGHT: (C)2008,JPO&INPIT【課題】任意の観察領域を通過する線維束を定量的に把握することのできる計測システムあるいは画像処理システムを提供する。【解決手段】被検体に静磁場及び高周波信号を印加し、被検体からの核磁気信号を受信する(401)。核磁気信号から拡散テンソルを計算する(402)。被検体の核磁気信号を受信する対象範囲について、計算部の計算した拡散テンソルに基づき、所定の複数の開始点をそれぞれ通過する線維束を、該線維束ごとに座標点の群として抽出する(406)。核磁気信号を受信する対象範囲について、少なくとも1つの観察領域を設定する(408)。線維束抽出部が抽出した複数の線維束のうち、座標点の群の少なくとも一つが観察領域に含まれる線維束を判別し計数する(409)。【選択図】 図3
