IMAGE PROCESSOR AND MAGNETIC RESONANCE IMAGING APPARATUS

摘要

PROBLEM TO BE SOLVED: To obtain an accurate position and volume of a myocardial infarction region and thus to improve accuracy of image diagnosis by extracting an accurate myocardial infarction region inside a cardiac muscle region from an image including the heart in an image processor.SOLUTION: An image processor 10 has: positioning means 43 for positioning images of a plurality of time phases including the heart; outer wall extraction means 44 for extracting the outer wall of the heart on the basis of an image of at least one of the plurality of time phases; transition coefficient arithmetic means 45a for obtaining a transition coefficient of a signal value inside the extracted outer wall on the basis of images of the plurality of time phases; and myocardial infarction region extract means 45c and lumen area extraction means 45d which separate the myocardial infarction region and a lumen area and extract them respectively by performing threshold processing of the transition coefficient.