Impact of the number of sampling points (pts) and iterations (iter) of the CVT algorithm on: (a) the prostate V100, and (b) the urethra V100 for a case of 12 catheters. (c) Results showing a linear relation between the number of points and the optimization time of the CVT algorithm.
Results showing the 3D distribution of the catheters in the prostate for: (a) the clinical case and the optimization procedure with (b) 17 catheters, (c) 14 catheters, and (d) 11 catheters.
Dosimetric indices for the different number of catheters generated by our method as well as the clinic for the prostate. (a) D90, (b) V100, (c) V200, and (d) HI (*: clinic; - - -: median value for the clinic; •: outlier).
Dosimetric indices for the different number of catheters generated by our method as well as the clinic for (a) urethra V100, (b) urethra V120, (c) rectum V75, and (d) bladder V75 (*: clinic; - - -: median value for the clinic; •: outlier, black line: ABS recommendation).
Results showing the impact of implantation error on prostate V100 for: (a) 9 catheters, (b) 12 catheters, and (c) 17 catheters.
Dosimetric indices, obtained from breast cases, for the different number of catheters generated by our method for: (a) PTV D90, (b) PTV V100, (c) PTV DHI, and (d) Skin V100 (- - -: ABS recommendation; •: outlier).
Isodoses for a breast case, using the catheters optimization procedure with: (a) 22 catheters, (b) 18 catheters, (c) 14 catheters, and (d) 12 catheters. (The arrows are respectively pointing the PTV, the skin and region of 50%, 100%, 120%, 150%, and 200% of the prescription dose).
Dose objective parameters for prostate and breast cases (e.g., prostate cases: 950 cGy per fraction × 2 fractions ; breast cases: 340 cGy per fraction × 10 fractions).
ABS guidelines for interstitial HDR prostate and breast brachytherapy.
Article metrics loading...
Full text loading...