Thomson E S, Clegg P
Radiation Physics Department, St Bartholomew's Hospital, London.
Br J Radiol. 1992 Apr;65(772):317-20. doi: 10.1259/0007-1285-65-772-317.
Stereotactic multiple arc radiotherapy (SMART) is an irradiation technique developed to treat small intracranial lesions. Calculation of absorbed-dose patterns for this treatment has traditionally involved complex computer programs incorporating algorithms designed to reconstruct the shape of the patient's head from computerized tomography (CT) images. A large proportion of the patients treated with SMART, however, have arteriovenous malformations for which angiography provides a better idea of lesion size and position than CT. This paper describes a computer program developed at St Bartholomew's Hospital which enables calculation of absorbed dose for a SMART treatment directly from angiographic radiographs, avoiding the need for CT. The program is compared with the existing CT-based treatment planning program.
立体定向多弧放疗（SMART）是一种为治疗颅内小病灶而开发的放射治疗技术。传统上，这种治疗的吸收剂量模式计算涉及复杂的计算机程序，这些程序包含旨在从计算机断层扫描（CT）图像重建患者头部形状的算法。然而，接受SMART治疗的患者中很大一部分患有动静脉畸形，对于这些患者，血管造影比CT能更好地显示病灶大小和位置。本文介绍了圣巴塞洛缪医院开发的一个计算机程序，该程序能够直接从血管造影X光片中计算SMART治疗的吸收剂量，无需CT。该程序与现有的基于CT的治疗计划程序进行了比较。
