美联社芝加哥1981年3月19日电:日本医生发明一种将大剂量的抗癌药品直接运送到肿瘤部位的新方法。秋田大学医科学校的医生将小剂量有毒性的抗癌药丝裂霉素装在纤维素小囊内,每隔2～6周用一导管将小囊射入患者恶性肿瘤区的动脉内,此囊在近肿瘤的部位停留,很少能通过血流。用此法对56例患各种肿瘤的病人进行治疗,初步结 Associated Press, Chicago, March 19, 1981: Japanese doctors have invented a new method for delivering large doses of anti-cancer drugs directly to the tumor site. Doctors of Akita University Medical School installed small doses of the toxic anticancer drug mitomycin in cellulosic sacs. Every 2 to 6 weeks, a catheter was used to inject the sacs into the artery of the patient’s malignant tumor area. The capsule stays near the tumor and rarely passes through the blood stream. This method was used to treat 56 patients suffering from various tumors.