Pesznyák Cs, Lövey K, Weisz Cs, Polgár I, Mayer A
Capital Oncoradiology Center, Uzsoki Hospital, Budapest, H-1145, Hungary.
Magy Onkol. 2001;45(4):335-341.
The EPI has become available recently in the Oncoradiological Centre of Budapest. The purpose of this paper is to review the construction and operation of the electronic portal imaging devices (EPIDs). The different EPID systems as well the EPID technique vs. portal films are compared. The advantages in patient set-up and the detection of the set-up errors are discussed. The use of the EPID technique in the clinical everyday practice is detailed. Recommendations of the set-up error correction for the most often occurring failures is given.
最近，EPI在布达佩斯的肿瘤放射中心开始投入使用。本文旨在回顾电子射野影像装置（EPID）的构建与操作。文中比较了不同的EPID系统以及EPID技术与射野片。讨论了在患者摆位方面的优势以及摆位误差的检测。详细阐述了EPID技术在临床日常实践中的应用。针对最常出现的故障给出了摆位误差校正的建议。
