Tinkler S D, Lucraft H H
Northern Centre for Cancer Treatment, Newcastle General Hospital, Newcastle upon Tyne, UK.
Br J Radiol. 1995 Jul;68(811):736-9. doi: 10.1259/0007-1285-68-811-736.
The case notes of 35 patients treated for medulloblastoma using a standard technique of craniospinal irradiation (CSI) from 1978 to 1992 were reviewed. Two large opposed lateral fields to the whole brain and an orthogonal posterior spinal field were used. The position of the junction between the fields was constant throughout treatment with no feathering and no gap. We present our results, review the literature and discuss the need for feathering. The junction between the cranial and spinal fields produces an area of dose inhomogeneity but the clinical significance of this and the effect of feathering is uncertain.
回顾了1978年至1992年间采用标准全脑脊髓照射（CSI）技术治疗的35例髓母细胞瘤患者的病历。使用两个相对较大的侧野照射全脑以及一个与之垂直的后脊髓野。在整个治疗过程中，野之间的交界处位置固定，不进行野的衔接渐变，也不留间隙。我们展示了我们的结果，回顾了文献并讨论了进行野衔接渐变的必要性。颅脑野和脊髓野之间的交界处会产生剂量不均匀区域，但这一点的临床意义以及野衔接渐变的影响尚不确定。
