论文部分内容阅读
报告21例复发性妇科恶性肿瘤用~(125)I作永久性间质植入治疗的经验.患者均曾作根治性手术、放疗或两者联合治疗.复发病例包括子宫颈癌11例,子宫内膜癌6例,卵巢、阴道与外阴癌各1例,另1例为子宫肉瘤.~(125)I具有半衰期长(60.2天)、能量低(28keV)及放射γ射线的特点,其半价层(H-VL)在组织内为2cm,在铅中为0.025ml.用Mi-ck’s施用器作植入,将每例的组织学类型、复发病变部位、肿瘤容积、~(125)I数目与活性及其总放射量用表列出.~(125)I种子数从7～67〔14.06～30.34MBq(0.38～082mCi)/种子〕,总放射量从4600～
Reported 21 cases of recurrent gynecologic malignancies using ~(125)I for permanent interstitial implantation. All patients had undergone radical surgery, radiotherapy, or a combination of both. The recurrence cases include 11 cases of cervical cancer, uterus There were 6 cases of endometrial cancer, 1 case of ovarian, vaginal and vulvar cancers, and 1 case of uterine sarcoma. 125I had the characteristics of long half-life (60.2 days), low energy (28keV), and gamma-ray emission. The layer (H-VL) is 2 cm in tissue and 0.025 ml in lead. Implanted with Mi-ck’s applicator, the histological type, recurrence lesion area, tumor volume, number of ~(125)I for each case The activity and total radiation dose are listed in the table. The number of ~(125)I seeds is from 7 to 67 [14.06 to 30.34 MBq (0.38 to 082 mCi)/seed], and the total dose is from 4600 to