PHYSICAL ASPECTS OF TOTAL-BODY IRRADIATION OF BONE-MARROW TRANSPLANT PATIENTS USING 18 MV X-RAYS

被引:5
作者
NIROOMANDRAD, A
机构
[1] Department of Radiation Medicine, Georgetown University Medical Center, Washington, DC 20007, 3800 Reservoir Road, N.W
来源
INTERNATIONAL JOURNAL OF RADIATION ONCOLOGY BIOLOGY PHYSICS | 1991年 / 20卷 / 03期
关键词
TOTAL BODY IRRADIATION; PATIENT IMMOBILIZATION SUPPORT; BONE MARROW TRANSPLANT;
D O I
10.1016/0360-3016(91)90077-H
中图分类号
R73 [肿瘤学];
学科分类号
100214 ;
摘要
The physical aspects of a total body irradiation (TBI) treatment are described. Patients seated in a special chair with their legs bent backwards are irradiated anteriorly and posteriorly (AP/PA). The chair reduces patient movement and facilitates positioning patients during 9 fractions of TBI over a 3-day period. The dose to lower extremities are monitored and raised to the total body dose. A conventional linear accelerator in a standard size treatment room is used to deliver 18 MV x-ray beams at a dose rate of approximately 20 cGy/min at a 350 cm treatment distance. Results of dose distribution, field flatness, dose uniformity, in vivo and in vitro dosimetry, and boost irradiation techniques are described.
引用
收藏
页码:605 / 611
页数:7
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