基于CT的治疗计划系统的临床应用。

Clinical application of a CT based treatment planning system.

作者信息

Sontag M R, Cunningham J R

出版信息

Comput Tomogr. 1978;2(2):117-30. doi: 10.1016/0363-8235(78)90009-1.

Abstract

An AECL (TP-11) treatment planning system has been modified to allow multiple CT scans to be used directly for dosage calculation and display. This CT/TP-11 system has incorporated the "equivalent tissue-air ratio method" to make corrections for the effects of tissue heterogeneity and the three-dimensional nature of patient shape. In test situations, using an anatomical phantom, an accuracy of ca. 2% has been attained. An investigation has also been made to assess the importance of the reproducibility of patient position and its effect on the validity of such dosage calcualtions. When representing an advance in sophistication of existing facilities, this system has also been designed with practically in mind.

摘要

加拿大原子能有限公司（TP - 11）的治疗计划系统已被修改，以允许直接使用多次CT扫描进行剂量计算和显示。这个CT/TP - 11系统采用了“等效组织空气比法”，以校正组织不均匀性和患者体型三维性质的影响。在测试情况下，使用解剖模型，已达到约2%的准确度。还进行了一项调查，以评估患者体位重复性的重要性及其对此类剂量计算有效性的影响。在体现现有设备复杂性的进步时，该系统在设计上也充分考虑了实用性。