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. 2017 Oct 10;9(5):431–445. doi: 10.5114/jcb.2017.70677

Fig. 2.

Fig. 2

Cont. E) Screenshots showing loading patterns, optimization techniques, isodose volumes, and cumulative and differential dose volume histogram generated in after ‘graphical optimization’ using Fletcher tandem ovoid applicators. F) The loading patterns and optimization techniques after using ring applicator were similar to Fletcher applicator as in Figure 2E. Since graphical optimization was done to achieve same dose-volume objectives, width and index thickness of 100% isodose is similar. Comparison of dose volume parameters, however, reveals (Table 2) both adequate coverage of target and sparing of organs at risk is possible after graphical optimization with ring applicators in all high-dose-rate fractionation schedules

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