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. Author manuscript; available in PMC: 2018 Mar 7.
Published in final edited form as: Phys Med Biol. 2017 Jan 31;62(5):1935–1948. doi: 10.1088/1361-6560/aa5bc7

Figure 4.

Figure 4

Cumulative dose volume histogram over the life time of the 125I seeds having air kerma strength of 1.467 U each. The prescribed minimal peripheral dose is 110Gy. Voxel dimensions are 0.2×0.2×0.2cm3 for the prostate (P) and rectum wall (R) and 0.1×0.1×0.2cm3 for the urethra (U). Dashed lines represent standard brachytherapy treatment while solid lines indicate the AuNP aided brachytherapy for a) uniform 30mg/g AuNP concentration, b) when the brachytherapy needles (and so 125I seed) are centered in the region with high AuNP concentration (Center region), with cCenter=66mg/g, cGradient=33mg/g, cTail=10mg/g; c) when the 125I seeds are in the Tail of the AuNP concentration, with cCenter=64.6mg/g, cGradient=32.3mg/g, cTail=10mg/g.