For the anatomy and physiology of the brain,the operative field is limited and the injure of normal tissues should be minimized in intracranial lesion resection,biopsy,drainage and diversion.

• 因脑组织解剖和生理学特性,在行颅内病灶手术时,需限制手术野的范围,并尽量减少对周围正常组织的损伤;