PROBLEM TO BE SOLVED: To correctly and quickly perform diagnosis of cardiac infarction.SOLUTION: A long-axis cross section extraction part 16a extracts a long-axis cross section in which the area of a range crossing an infarction range gets largest out of cross sections including the long axis of the heart of a subject in each of a plurality of three-dimensional images given in time series including the heart of the subject stored in a three-dimensional image storage part 15a. An infarction size calculation part 16b calculates the size of the infarction range included in the long-axis cross section. A short-axis cross section extraction part 16c extracts a short-axis cross section crossing the long axis with the most perpendicular angle in each of the plurality of three-dimensional images given in time series. The infarction size determination part 16b determines the size of the infarction range included in the short-axis cross section. Then, a display control part 16d controls to display the long-axis cross section, the size of the infarction range included in the long-axis cross section, and the short-axis cross section, and the size of the infarction range included in the short-axis cross section on a monitor provided on an output part 12 in time series.COPYRIGHT: (C)2009,JPO&INPIT【課題】心筋梗塞の診断を正確かつ迅速に行なうこと。【解決手段】長軸断面抽出部16aは、3次元画像記憶部15aが記憶する被検体の心臓を含む時系列に沿った複数の3次元画像それぞれにおいて、当該被検体の心臓の長軸を含む断面の中から、梗塞領域と交わる領域の面積が最大となる長軸断面を抽出し、梗塞サイズ算出部16bは、長軸断面に含まれる梗塞領域の大きさを算出する。そして、短軸断面抽出部16cは、時系列に沿った複数の3次元画像それぞれにおいて、長軸と最も垂直に近い角度で交わる断面である短軸断面を抽出し、梗塞サイズ算出部16bは、短軸断面に含まれる梗塞領域の大きさを算出する。続いて、表示制御部16dは、長軸断面と当該長軸断面に含まれる梗塞領域の大きさ、および、短軸断面と当該短軸断面に含まれる梗塞領域の大きさを、時系列に沿って出力部12が備えるモニタにて表示するように制御する。【選択図】 図1
