JP2004016374A5 - - Google Patents

Claims (17)

被検体を撮像して得られた３次元断層像データから、入力された設定断面に対応する断層像データを取り出し、該断層像データを予め設定された閾値に従って２値化処理し、該２値化処理された断層像データに基づいて関心領域を判別し、該関心領域の幾何学データに基づいて当該関心領域の延在方向を判断して該延在方向に沿う近似曲線を求め、該近似曲線を含む曲断面の断層像データを前記３次元断層像データから取り出して曲断面画像を再構成して表示手段に表示する曲断面画像再構成方法。The tomographic image data corresponding to the input set cross section is extracted from the three-dimensional tomographic image data obtained by imaging the subject, and the tomographic image data is binarized according to a preset threshold value. The region of interest is determined based on the tomographic image data that has been processed, the extension direction of the region of interest is determined based on the geometric data of the region of interest, and an approximate curve along the extension direction is obtained, and the approximation A curved cross-sectional image reconstruction method of extracting tomographic image data of a curved cross section including a curve from the three-dimensional tomographic image data, reconstructing the curved cross-sectional image, and displaying the reconstructed cross-sectional image on the display means. 被検体を撮像して得られた３次元断層像データから、入力された設定断面に対応する断層像データを取り出し、該断層像データを予め設定された閾値に従って２値化処理して２値化断層像を再構成して表示手段に表示し、表示された２値化断層像に入力設定された関心点が含まれる２値化領域を関心領域として判別し、該関心領域の延在方向を判断して該延在方向に沿う近似曲線を求め、該近似曲線を含む曲断面の断層像データを前記３次元断層像データから取り出して曲断面画像を再構成して表示手段に表示する曲断面画像再構成方法。From the three-dimensional tomographic image data obtained by imaging the subject, tomographic image data corresponding to the input set cross section is extracted, and the tomographic image data is binarized according to a preset threshold value and binarized. A tomographic image is reconstructed and displayed on the display means, a binarized region including a point of interest input and set in the displayed binarized tomographic image is determined as a region of interest, and the extending direction of the region of interest is determined. A curved section for determining an approximate curve along the extending direction, extracting a tomographic image data of the curved section including the approximate curve from the three-dimensional tomographic image data, reconstructing the curved section image, and displaying it on the display means Image reconstruction method. 前記近似曲線は、前記関心領域の形状中心線上又は近傍に複数の点を設定し、該複数の設定点を結ぶ線に基づいて求めることを特徴とする請求項１又は２に記載の曲断面画像再構成方法。3. The curved cross-sectional image according to claim 1, wherein the approximate curve is obtained based on a line connecting a plurality of set points on or near the shape center line of the region of interest. Reconfiguration method. 被検体の屈伸部に複数の参照点マーカを設定し、前記屈伸部を屈伸させて複数の３次元断層像データを撮像し、入力設定される一の屈伸形態に係る設定断面の断層像データを前記３次元断層像データから取り出して断層像を再構成して表示手段に表示し、該表示された断層像に入力設定される設定曲線と前記参照点との距離を求め、入力設定される他の屈伸形態に係る平断面の断層像データを前記３次元断層像データから取り出し、前記参照点マーカから前記求めた距離にサンプル点を設定して座標を求め、複数の前記参照点に対応する複数の前記サンプル点を結ぶ線の近似曲線を求め、該近似曲線を含む曲断面の断層像データを前記３次元断層像データから取り出して当該曲断面の断層像を再構成して表示手段に表示する曲断面画像再構成方法。A plurality of reference point markers are set on the bending / extending part of the subject, the bending / extending part is bent and stretched, a plurality of three-dimensional tomographic image data is captured, and the tomographic image data of the set cross section relating to one bending / extension form set as input is obtained. Extracted from the three-dimensional tomographic image data, reconstructed the tomographic image and displayed it on the display means, obtains the distance between the setting curve input and set in the displayed tomographic image and the reference point, and is input and set The tomographic image data of the flat cross section according to the bending and stretching form is taken out from the three-dimensional tomographic image data, the sample point is set at the obtained distance from the reference point marker, the coordinates are obtained, and a plurality of pieces corresponding to the plurality of reference points are obtained. An approximate curve of a line connecting the sample points is obtained, tomographic image data of a curved section including the approximate curve is extracted from the three-dimensional tomographic image data, and the tomographic image of the curved section is reconstructed and displayed on the display means. Curve cross-sectional image reconstruction Law. 前記近似曲線を含む曲断面は、前記設定断面に直交する曲断面であることを特徴とする請求項１乃至４のいずれかに記載の曲断面画像再構成方法。The curved section image reconstruction method according to any one of claims 1 to 4, wherein the curved section including the approximate curve is a curved section orthogonal to the set section. 被検体の屈伸部を屈伸させて複数の３次元断層像データを撮像し、入力設定される設定断面の断層像データを前記３次元断層像データから取り出して断層像を再構成するにあたって、屈伸形態にかかわらず前記被検体の同一断面の断層像を再構成して表示手段に表示するにあたり、前記３次元断層像データから取り出して断層像を再構成して表示手段に表示する曲断面画像再構成方法。When a plurality of three-dimensional tomographic image data is captured by bending and stretching the subject's bending and stretching portion, and the tomographic image of the set cross-section set as input is extracted from the three-dimensional tomographic image data, Regardless of whether or not the tomographic image of the same cross section of the subject is reconstructed and displayed on the display means, the tomographic image is reconstructed by extracting from the three-dimensional tomographic image data and reconstructing the tomographic image and displaying it on the display means. Method. 被検体を撮像して得られた３次元断層像データから、入力された設定断面に対応する断層像データを取り出す処理と、取り出した断層像データを予め設定された閾値に従って２値化する処理と、２値化処理された２値画像領域の一方の領域の幾何学データに基づいて当該領域の延在方向を判断して該延在方向に沿う近似曲線を求める処理と、求めた近似曲線を含む曲断面の断層像データを前記３次元断層像データから取り出す処理と、取り出した断層像データに基づいて曲断面画像を再構成して表示する処理とを有してなる曲断面画像再構成プログラム。A process of extracting tomographic image data corresponding to the input set cross section from the three-dimensional tomographic image data obtained by imaging the subject, and a process of binarizing the extracted tomographic image data according to a preset threshold value Based on the geometric data of one of the binarized binary image regions, the extension direction of the region is determined to obtain an approximate curve along the extension direction, and the obtained approximate curve is A curved cross-section image reconstruction program comprising: processing for extracting tomographic image data of a curved cross section from the three-dimensional tomographic image data; and processing for reconstructing and displaying a curved cross-sectional image based on the extracted tomographic image data . 被検体を撮像して得られた３次元断層像データから、入力された設定断面に対応する断層像データを取り出す処理と、取り出した断層像データを予め設定された閾値に従って２値化処理して２値化断層像を再構成して表示手段に表示する処理と、表示された２値化断層像に入力設定された関心点が含まれる２値化領域を関心領域として判別する処理と、判別した関心領域の延在方向を判断して該延在方向に沿う近似曲線を求める処理と、求めた近似曲線を含みかつ前記設定断面に直交する曲断面の断層像データを前記３次元断層像データから取り出して曲断面画像を再構成して表示手段に表示する処理とを有してなる曲断面画像再構成プログラム。Processing for extracting tomographic image data corresponding to the input set cross section from the three-dimensional tomographic image data obtained by imaging the subject, and binarizing the extracted tomographic image data according to a preset threshold value Processing for reconstructing a binarized tomogram and displaying it on the display means, processing for discriminating as a region of interest a binarized region including a point of interest input and set in the displayed binarized tomogram, and discrimination Processing for determining the extension direction of the region of interest and obtaining an approximate curve along the extension direction; and tomographic image data of a curved cross section including the obtained approximate curve and orthogonal to the set cross section; And a processing for reconstructing a curved cross-sectional image and displaying it on the display means. 複数の参照点マーカが設定された被検体の屈伸部を屈伸させて複数のBend and stretch the bending part of the subject for which multiple reference point markers are set. ３次元断層像データを撮像する処理と、入力設定される一の屈伸形態に係る設定断面の断層像データを前記３次元断層像データから取り出して断層像を再構成して表示手段に表示する処理と、表示された断層像に入力設定される設定曲線と前記参照点との距離を求める処理と、入力設定される他の屈伸形態に係る平断面の断層像データを前記３次元断層像データから取り出する処理と、前記参照点マーカから前記求めた距離にサンプル点を設定して座標を求める処理と、複数の前記参照点に対応する複数の前記サンプル点を結ぶ線の近似曲線を求める処理と、求めた近似曲線を含む曲断面の断層像データを前記３次元断層像データから取り出して当該曲断面の断層像を再構成して表示手段に表示する処理とを有してなる曲断面画像再構成プログラム。Processing for capturing three-dimensional tomographic image data, and processing for extracting tomographic image data of a set cross section relating to one bending and stretching form that is input and set from the three-dimensional tomographic image data, reconstructing the tomographic image, and displaying it on the display means A process for obtaining a distance between a set curve input to the displayed tomographic image and the reference point, and tomographic image data of a plane cross section relating to another bending / stretching mode input and set from the three-dimensional tomographic image data. A process of taking out, a process of obtaining a coordinate by setting a sample point at the obtained distance from the reference point marker, and a process of obtaining an approximate curve of a line connecting the plurality of sample points corresponding to the plurality of reference points The tomographic image of the curved section including the obtained approximate curve is extracted from the three-dimensional tomographic image data, and the tomographic image of the curved section is reconstructed and displayed on the display means. Configuration pro Lamb. 前記近似曲線を含む曲断面は、前記設定断面に直交する曲断面であることを特徴とする請求項８乃至１０のいずれかに記載の曲断面画像再構成プログラム。The curved section image reconstruction program according to any one of claims 8 to 10, wherein the curved section including the approximate curve is a curved section orthogonal to the set section. 被検体を撮像して得られた３次元断層像データを格納する記憶手段と、画像表示させる設定断面を入力する入力手段と、入力された設定断面に対応する断層像データを前記記憶手段から読み出して画像処理する画像処理手段と、画像処理された画像を表示する表示手段とを備え、前記画像処理手段は、読み出した前記断層像データを予め設定された閾値に従って２値化処理し、該２値化処理された２値画像領域の予め定められた一方の領域の幾何学データに基づいて当該領域の延在方向を判断し、該延在方向に沿う近似曲線を求め、該近似曲線を含む曲断面の断層像データを前記３次元断層像データから取り出して曲断面画像を再構成して前記表示手段に表示させる医用画像診断装置。Storage means for storing three-dimensional tomographic image data obtained by imaging the subject, input means for inputting a set cross section for image display, and tomographic image data corresponding to the input set cross section are read from the storage means. Image processing means for image processing and display means for displaying the image processed image, wherein the image processing means binarizes the read tomographic image data according to a preset threshold value, Based on the geometric data of one predetermined region of the binary image region subjected to the binarization process, the extending direction of the region is determined, an approximate curve along the extending direction is obtained, and the approximate curve is included A medical image diagnostic apparatus that extracts tomographic image data of a curved section from the three-dimensional tomographic image data, reconstructs a curved sectional image, and displays the image on the display means. 前記近似曲線は、前記２値画像領域の前記一方の領域の形状中心線上又は近傍に複数の点を設定し、該複数の設定点を結ぶ線に基づいて求めることを特徴とする請求項１１に記載の医用画像診断装置。12. The approximate curve is obtained based on a line connecting a plurality of set points on or near the shape center line of the one area of the binary image area. The medical image diagnostic apparatus described. 被検体を撮像して得られた３次元断層像データを格納する記憶手段と、画像表示させる設定断面を入力する入力手段と、入力された設定断面に対応する断層像データを前記記憶手段から読み出して画像処理する画像処理手段と、画像処理された画像を表示する表示手段とを備え、前記画像処理手段は、読み出した前記断層像データを予め設定された閾値に従って２値化処理して２値化断層像を再構成して表示手段に表示し、表示された２値化断層像に入力設定された関心点が含まれる２値化領域を関心領域として判別し、該関心領域の延在方向を判断して該延在方向に沿う近似曲線を求め、該近似曲線を含む曲断面の断層像データを前記３次元断層像データから取り出して曲断面画像を再構成して表示手段に表示させる医用画像診断装置。Storage means for storing three-dimensional tomographic image data obtained by imaging the subject, input means for inputting a set cross section for image display, and tomographic image data corresponding to the input set cross section are read from the storage means. Image processing means for image processing and display means for displaying the image processed image, wherein the image processing means binarizes the read tomographic image data according to a preset threshold value. The binarized tomographic image is reconstructed and displayed on the display means, and the binarized region including the interest point input and set in the displayed binarized tomographic image is determined as the region of interest, and the extension direction of the region of interest To obtain an approximate curve along the extending direction, extract the tomographic image data of the curved section including the approximate curve from the three-dimensional tomographic image data, reconstruct the curved section image, and display it on the display means Diagnostic imaging device. 前記画像処理手段は、前記関心領域の形状中心線上又は近傍に複数の点を設定し、該複数の設定点を結ぶ線に基づいて前記近似曲線を求めることを特徴とする請求項１３に記載の医用画像診断装置。14. The image processing unit according to claim 13, wherein the image processing unit sets a plurality of points on or near a shape center line of the region of interest, and obtains the approximate curve based on a line connecting the plurality of set points. Medical diagnostic imaging device. 被検体の屈伸部に複数の参照点マーカを設定して前記屈伸部を屈伸させて撮像された複数の３次元断層像データを記憶する記憶手段と、画像表示させる設定断面を入力する入力手段と、入力設定された一の屈伸形態に係る設定断面の断層像データを前記３次元断層像データから読み出して断層像を再構成する画像処理手段と、再構成された前記断層像を表示する表示手段とを備え、前記画像処理手段は、前記表示手段に表示された断層像に入力設定される設定曲線と前記参照点との距離を求め、入力設定される他の屈伸形態に係る平断面の断層像データを前記３次元断層像データから読み出し、前記参照点マーカから前記求めた距離にサンプル点を設定して座標を求め、複数の前記参照点に対応する複数の前記サンプル点を結ぶ線の近似曲線を求め、該近似曲線を含む曲断面の断層像データを前記３次元断層像データから取り出して当該曲断面の断層像を再構成して表示手段に表示させる医用画像診断装置。A storage means for storing a plurality of three-dimensional tomographic image data obtained by setting a plurality of reference point markers in the bending / extension part of the subject and bending the extension / extension part; and an input means for inputting a set cross section for image display An image processing means for reconstructing a tomographic image by reading out the tomographic image data of the set cross section relating to the one bending / extension mode that has been input and set from the three-dimensional tomographic image data, and a display means for displaying the reconstructed tomographic image The image processing means obtains a distance between a setting curve input and set in the tomographic image displayed on the display means and the reference point, and a cross-section tomographic plane according to another bending and extending form input and set Image data is read from the three-dimensional tomographic image data, a sample point is set at the obtained distance from the reference point marker to obtain coordinates, and an approximation of a line connecting a plurality of the sample points corresponding to a plurality of the reference points curve Determined, the medical image diagnostic apparatus for displaying on display means a tomographic image data of the curved cross-section to reconstruct a tomographic image of the curved slices removed from the 3-dimensional tomographic image data including the approximation curve. 前記近似曲線を含む曲断面は、前記設定断面に直交する曲断面であることを特徴とする請求項１３乃至１５のいずれかに記載の医用画像診断装置。The medical image diagnostic apparatus according to claim 13, wherein the curved section including the approximate curve is a curved section orthogonal to the set section. 被検体の屈伸部を屈伸させて撮像された複数の３次元断層像データを記憶する記憶手段と、画像表示させる設定断面を入力する入力手段と、入力設定されるStorage means for storing a plurality of three-dimensional tomographic image data obtained by bending and extending the bending portion of the subject, input means for inputting a set section for image display, and input setting 設定断面の断層像データを前記３次元断層像データから取り出して断層像を再構成する画像処理手段と、再構成された前記断層像を表示する表示手段とを備え、前記画像処理手段は、屈伸形態にかかわらず前記被検体の同一断面の断層像を再構成して表示手段に表示させる医用画像診断装置。Image processing means for extracting tomographic image data of a set cross section from the three-dimensional tomographic image data and reconstructing the tomographic image; and display means for displaying the reconstructed tomographic image, wherein the image processing means A medical diagnostic imaging apparatus that reconstructs a tomographic image of the same cross section of the subject regardless of the form and displays it on a display means.