Automatic measurement of air gap for proton therapy using orthogonal x-ray imaging with radiopaque wires.

CONCLUSIONS: An image-based automatic method has been developed to conveniently determine the air gap of a proton beam, directly using the orthogonal images for patient positioning without adding additional imaging dose to the patient. The method provides an objective, accurate, and efficient way to confirm the target depth at treatment to ensure desired target coverage and normal tissue sparing.
PMID: 30556259 [PubMed - as supplied by publisher]

Source: Journal of Applied Clinical Medical Physics - December 16, 2018 Category: Physics Authors: Ramesh P, Song W, Cao H, Zhao Y, Parikh R, Weiner J, Wang X, Nie K, Yue N, Zhang Y Tags: J Appl Clin Med Phys Source Type: research