Assessing tumor centrality in lung stereotactic ablative body radiotherapy (SABR): the effects of variations in bronchial tree delineation and potential for automated methods

Accurate delineation of the proximal bronchial tree (PBT) is crucial for appropriate assessment of lung tumor centrality and choice of Stereotactic Ablative Body Radiotherapy (SABR) dose prescription. Here, we investigate variabilities in manual PBT delineation and their potential to influence assessing lesion centrality. A fully automatic, intensity-based tool for PBT contouring and measuring distance to the target is also described. This retrospective analysis included a total of 61 patients treated with lung SABR.

Source: Medical Dosimetry - October 13, 2020 Category: Radiology Authors: Wsam Ghandourh, Jason Dowling, Phillip Chlap, Andrew Oar, Susannah Jacob, Vikneswary Batumalai, Lois Holloway Source Type: research