An optical system for measuring surface shapes for radiotherapy planning.
A system which uses two remote cameras to obtain surface contours for radiotherapy patients is described. Two variants are presented: one which requires couch movement to obtain multiple outlines, and one utilizing a special illumination method to achieve multiple outlines from one image per camera. In addition, a technique is discussed in which the grey-scale information from the skin surface (e.g., skin marks placed by the radiotherapist) may be utilized in displaying three-dimensional surface information. The system may also be used to monitor patient position in real time during each treatment.
Department of Medical Physics, Torbay Hospital, Torquay, Devon, UK.
R J
RJ
Wilks
D006801:Humans; D008433:Mathematics; D055095:Optics and Photonics; D011187:Posture; D011881:Radiotherapy, Computer-Assisted; D013679:Technology, Radiologic