Weeks K J, Arora V R, Leopold K A, Light K L, King S C, Ray S K, Sontag M R, Smith K D
Department of Radiation Oncology, Duke University Medical Center, Durham, NC 27710.
Int J Radiat Oncol Biol Phys. 1994 Oct 15;30(3):693-8. doi: 10.1016/0360-3016(92)90957-j.
To develop a clinical procedure to treat field within a field (concomitant boost) portals with a single compensated field.
An ordinary manual cerrobend block former was used to produce styrofoam molds from simulator film data. A special gypsum compound was poured into the molds. The compensator block is independently mounted to the treatment machine via a custom-made compensator holder.
Measurements confirm that the inhomogeneous dose distribution has been reliably delivered via this technique. The accuracy of placement of the high dose region is sufficient for clinical use.
The procedure enables the concomitant boost effect to be easily implemented in the clinic without increasing clinical setup time.
开发一种临床程序，用单个补偿野治疗野中野（同步加量）照射野。
使用普通手动铈钨合金挡铅成型器，根据模拟机影像数据制作聚苯乙烯泡沫塑料模具。将一种特殊的石膏混合物倒入模具中。补偿挡铅通过定制的补偿器固定架独立安装到治疗机上。
测量结果证实，通过该技术已可靠地实现了不均匀剂量分布。高剂量区的放置精度足以满足临床使用。
该程序可使同步加量效应在临床中轻松实现，而无需增加临床摆位时间。
