大型方形導波管アプリケータによるSAR分布の制御

抄録

An attempt is made to control SAR distribution in a human body by the use of the large waveguide applicator in this paper. First, an example is worked out to show how the SAR distribution in a specfic region in liver can be increased by adjusting the position of the body in the waveguide applicator, relative to the SAR distribution in other regions of the body. This method is then applied to three cases of liver tumor based on CT-images. Results indicate that favorable SAR distributions can be obtained by positioning the region of tumor at around the center of waveguide applicator whose width is chosen at about 1. 5-2 times of the body width.