ESTRO 2024 - Abstract Book

S3033

Physics - Autosegmentation

ESTRO 2024

Figure 2. Examples of automatic segmentations of the proximal bronchial tree, see marks in Figure 1. Example 1: Largest difference in volume for MICE STAPLE and Velocity. Largest difference in near-maximum dose for MICE STAPLE and RayStation. Example 2: Lowest Dice similarity coefficient and largest difference in relative volume for MICE Voting . Example 3: Longest Hausdorff distance for MICE STAPLE .

Conclusion:

In this evaluation, RayStation best segmented the PBT. Using the investigated automatic methods, substantial geometrical and dosimetrical deviations could be the result.

Keywords: Proximal bronchial tree, autosegmentation, NTCP

References: