According to the position , property and size of the lesion of patient , ask the patient to wear the same clothes and keep the same poise during surgery as they wear and make during ct scan and keep his her stomach , bladder or intestinal tract under the brimming status 治療時(shí)根據(jù)病人病灶的部位性質(zhì)大小等情況,囑病人保持ct定位時(shí)同樣的衣著,胃部膀胱或腸道充盈狀態(tài)。并保持ct定位時(shí)同樣的體位。