Klepper R, Kuhne-Velte H, Kaufmann J
Belegabteilung für Strahlentherapie an den Krankenanstalten Konstanz.
Strahlenther Onkol. 1989 Jan;165(1):52-5.
A rotational field technique with a central placed block generates nearly circular isodoses with a pronounced minimum in its center, comparable with a cone-shaped mountain with a crater. The shape of both, mountain and crater, can be effectively varied by means of block size, field size, rotational angle and by superimposing two different types of rotational fields. One application of this radiation technique is the myelon-sparing treatment of the neck, another one the percutaneous completion of an intracavitary pre-radiation in the case of a gynecologic cancer.
一种带有置于中心的挡块的旋转野技术可产生近似圆形的等剂量曲线,其中心有明显的最小值,这类似于一座带有火山口的锥形山峰。通过挡块大小、射野大小、旋转角度以及叠加两种不同类型的旋转野,山峰和火山口的形状都可以得到有效改变。这种放射技术的一个应用是颈部的脊髓 sparing 治疗,另一个应用是在妇科癌症的情况下对腔内放疗前进行经皮完成。 (注:“myelon-sparing”这里翻译为“脊髓 sparing”,因为不太明确具体准确中文术语,可能是特定语境下的专业表述,可根据实际专业知识调整更准确译法)