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PCRT3D: an interactive three-dimensional radiation treatment planning system based on volume rendering for low-end platforms

Cerezo E., Seron F. J., Soria A.

Machine Graphics and Vision

1998

Vol. 7, No. 4

859-878

The objactive of radiation therapy is to concentrate a perscribed radiation dose accurately within a target volume in the patient. Computer assisted radiation treatment planning provides a tool to find the optimum configuration of radiation beams for the treatment of an individual patient. It involves interesting 3D technoques that demand high-end visualisation and computational abilities, pushing the limits of available technology. PCRT3D is a therapy-planning tool that runs under WINDOWS NT and is an updated and improved version of the PCRTv3.2 tool that is being used in more that 30 Spanish hospitals. All the visualisation part of the application has been developed in the Advanced Computer Graphics Group of the University of Zaragoza (Spain). Based on volume rendering, anatonical and dose information can be mixed and observed in 3D and on every desired plane. Some of its major features are a simple and intuitive interface, strict manipulation of the input data coming from the scanner to avoid artifacts showing up and special render algorithms to achieve interactivity. The creation of new images by means of morphing between images, beam-aye-view and digitally reconstructed radiographs also figure among its capabilities.