Premium
An algorithm for generation of implant plans for high‐dose‐rate irradiators
Author(s) -
Renner W. D.,
O'Connor T. P.,
Bermudez N. M.
Publication year - 1990
Publication title -
medical physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.473
H-Index - 180
eISSN - 2473-4209
pISSN - 0094-2405
DOI - 10.1118/1.596525
Subject(s) - dwell time , algorithm , radiation treatment planning , volume (thermodynamics) , computer science , catheter , point (geometry) , dose rate , brachytherapy , nuclear medicine , mathematics , medical physics , medicine , surgery , radiation therapy , physics , clinical psychology , geometry , quantum mechanics
An algorithm is described for generating a treatment plan with minimal input from the user for a remote high‐dose‐rate afterloading irradiator. The algorithm generates a plan after locating all catheters involved and an area of interest on each catheter, and two additional numbers are specified: a radial distance and a target dose. The treatment volume becomes the locus of all points that are within the specified radial distance from any point within the area of interest on any catheter (except for the end points). For a single catheter, the volume may be alternately outlined on an x‐ray film of the implant. The routine uses a linear programming formulism to compute which dwell positions are to be used, as well as the dwell time at each position, to irradiate the treatment volume to the target dose while minimizing the total volume integrated dose to the patient.