Examination of detection of mammary gland that used fractal analysis in treatment plan of radiotherapy for breast conservative treatment (the 1st report)

The CT image of the radiotherapy for breast conservative treatment plan is divided, one image was assumed to be number 64 of pixels. The density and the fractal value of the image showed a positive correlation, and the fractal value of the fat part showed the constant value, 2.00. When the part only of fat is excluded from the entire breast, the mammary gland (The Cooper ligament is included) can be detected. It has been understood that the area of the mammary gland changes by changing the window level of CT, too. (author)