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大剂量后装治疗的优点毋庸赘述。主要治疗子宫颈癌,但迄今某些头颈部、皮肤、阴茎,直肠等肿瘤,尤其是鼻咽癌(NPC)均成为治疗的重要对象。 后装治疗的方法有经口及经鼻腔两种,各有其适应症,本文用463居里钴~(60)珠经鼻腔治疗36例,均能很好耐受,治疗是安全的,对复发病例给外照射4000—4500CGy(肿瘤量)及腔内放疗800—1000毫克小时镭当量,分成2—3次给予。 由于选择的计算点不同,虽然剂量相同但治疗时间相差10倍以上,所以应该像子宫颈癌的A、B点一样,在鼻咽部定出一公认的剂量计算点,否则剂量用“毫克小时镭当量”表示比用“CGY”更有意义。
The advantages of high-dose after-treatment do not need to be described. The main treatment for cervical cancer, but so far some of the head and neck, skin, penis, rectum and other tumors, especially nasopharyngeal carcinoma (NPC) have become an important target for treatment. There are two methods for post-loading therapy, oral and nasal, each with their own indications. This article uses 463 Curie Cobalt(60) beads through nasal cavity for treatment of 36 cases, all of which are well tolerated and the treatment is safe. The recurrence cases were given external irradiation 4000-4500CGy (tumor volume) and 800-1000 mg radium equivalent of radiotherapy within the cavity, divided into 2-3 doses. Since the selected calculation points are different, although the doses are the same but the treatment time differs by more than 10 times, a recognized dose calculation point should be set at the nasopharyngeal as A and B points of cervical cancer, otherwise the dose is “mg hours. Radium equivalent“ means more meaningful than using ”CGY".