Leetz H K, Vogelsang U
Institut für Radiologische Physik, Universitätskliniken, Homburg/Saar.
Strahlenther Onkol. 1989 Nov;165(11):807-12.
While investigating ways to solve the problem of locating radiation sources applied in brachytherapy a device was constructed which enables a precise assessment of their or their applicators' position from two only roughly positioned orthogonal radiographs. The overall accuracy (including exposure and evaluation) achieved is +/- 1 mm. The constructional elements and the evaluation algorithm are described and the influence of the location uncertainty on the uncertainty of the dose applied are discussed.
在研究解决近距离放射治疗中辐射源定位问题的方法时，构建了一种装置，该装置能够仅从两张大致定位的正交射线照片精确评估辐射源或其施源器的位置。所实现的总体精度（包括曝光和评估）为±1毫米。描述了结构元件和评估算法，并讨论了位置不确定性对所施剂量不确定性的影响。
