2015
DOI: 10.1118/1.4926133
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TH‐AB‐BRB‐02: Enabling Web‐Based Treatment Planning Using a State‐Of‐The‐Art Convex Optimization Solver

Abstract: Purpose: To develop an ultra‐fast web‐based inverse planning framework for VMAT/IMRT. To achieve high speed, we investigate the use of a simple convex formulation of the inverse treatment planning problem that takes advantage of recent developments in the field of distributed optimization. Methods: A Monte Carlo (MC) dose calculation algorithm was used to calculate the dose matrix (268228 voxels × 360 beams, 96M non‐zeros) for a 360‐aperture, 4‐arc VMAT plan taken from the clinic. We wrote the objective for th… Show more

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“…For example, if there were five apertures selected in an angular sector, this sector would be divided into five subsectors during arc sequencing under the assumption that the dosimetric change is negligible when the SPs are angularly varied within one degree. 17 The aperture weights were optimized with proximal operator graph solver (POGS), 18,19 an open sourced solver with GPU acceleration support for convex optimization of the form F. 10.…”
Section: Methodsmentioning
confidence: 99%
“…For example, if there were five apertures selected in an angular sector, this sector would be divided into five subsectors during arc sequencing under the assumption that the dosimetric change is negligible when the SPs are angularly varied within one degree. 17 The aperture weights were optimized with proximal operator graph solver (POGS), 18,19 an open sourced solver with GPU acceleration support for convex optimization of the form F. 10.…”
Section: Methodsmentioning
confidence: 99%