
Sensors, Год журнала: 2024, Номер 24(16), С. 5447 - 5447
Опубликована: Авг. 22, 2024
Accurate and precise rigid registration between head-neck computed tomography (CT) cone-beam (CBCT) images is crucial for correcting setup errors in image-guided radiotherapy (IGRT) head neck tumors. However, conventional methods that treat the as a single entity may not achieve necessary accuracy region, which particularly sensitive to radiation radiotherapy. We propose ACSwinNet, deep learning-based method CT-CBCT registration, aims enhance precision region. Our approach integrates an anatomical constraint encoder with segmentations of tissues organs also employ Swin Transformer-based network cases large initial misalignment perceptual similarity metric address intensity discrepancies artifacts CT CBCT images. validate proposed using dataset acquired from clinical patients. Compared method, our exhibits lower target error (TRE) landmarks region (reduced 2.14 ± 0.45 mm 1.82 0.39 mm), higher dice coefficient (DSC) (increased 0.743 0.051 0.755 0.053), structural index 0.854 0.044 0.870 0.043). effectively addresses challenge low has been limitation methods. This demonstrates significant potential improving IGRT
Язык: Английский