頭部X線CT画像における脳領域の抽出方法

抄録

In the diagnosis of mental disease such as Alzheimer's, quantative evalution of brain atrophy ratio (b.a.r) is quite important, and it is quite natural to use commonly distributed X-ray CT image for this objective. However, in X-ray CT image processing, a fundamental problem to be resolved is how recognize vague boundary of each brain subarea, such as cerebral, cerebral ventricle and cerebral spinal fruid area. To resulve this problem we adopted a new method based on analizing each CT image data statistically. The detail of the method and its application results is discrived in this paper.