Fernandez E M, Shentall G S, Mayles W P, Dearnaley D P
Department of Physics, Royal Marsden N.H.S., Sutton, Surrey, UK.
Radiother Oncol. 1995 Jul;36(1):65-74. doi: 10.1016/0167-8140(95)01571-w.
A multileaf collimator (MLC) can be used as a replacement for conventional blocks as well as for conformal radiotherapy. This study has assessed the possibility of using a Philips MLC for 218 patients treated with conventionally blocked fields. It was found that MLC field shaping would have been appropriate for over 94% of such patients. The facility to treat large blocked fields has been found to be particularly useful. Use of the predefined shapes stored in the Regular Shape Library provided by Philips was evaluated and it was found that an appropriate shape was available in 52% of cases. The application of MLC fields to the treatment of different anatomical sites is discussed.
多叶准直器（MLC）可用于替代传统挡块以及适形放疗。本研究评估了在218例接受传统挡铅野治疗的患者中使用飞利浦MLC的可能性。结果发现，MLC射野塑形适用于超过94%的此类患者。已发现治疗大挡铅野的功能特别有用。对使用飞利浦提供的常规形状库中存储的预定义形状进行了评估，结果发现在52%的病例中可获得合适的形状。讨论了MLC射野在不同解剖部位治疗中的应用。
