ESTRO 2022 - Abstract Book

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Abstract book

ESTRO 2022

images using the intensity-only DIR produced a DSC of 0.89±0.04, 0.77±0.16, 0.83±0.07 and a difference in dose metrics of 59±125 cGy (CTV D98), 2±115 cGy (bladder D5cc), and -38±114 cGy (rectum D1cc).

Conclusion We demonstrate that the hybrid DIR algorithm can incur errors in contour propagation which will impact application to dose warping and accumulation. Controlling ROIs and POIs improve the DIR and consequentially require ROI segmentation on registered images. This motivates implementation of robust automated contouring for dose accumulation work.