Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 4 of 4 for “"setup errors"”.
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Automatic image alignment for clinical evaluation of patient setup errors in radiotherapy
… settings must be reproduced precisely (treatment setup). These settings include machine setup, such as energy, direction, size and shape of the radiation beams as well as patient setup, such as position and orientation of the patient relative to the beams. An inaccurate setup may result in not …
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Radiation therapy treatment plan optimization accounting for random and systematic patient setup uncertainties
… alignment is not perfect and results in residual errors in patient setup. The standard technique for dealing with errors in patient setup is to expand the volume of the target by some margin to ensure the target receives the planned dose in the presence of setup errors. This work develops an …
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Image-Guided Proton Therapy For Online Dose-Evaluation and Adaptive Planning
… prior dose distributions on new anatomy or new setup position. We assessed the accuracy of this technique compared to full dose calculation and found the average passing rate of 3D gamma analysis (3% dose-difference, 3-mm distance-to-agreement) were 96% and 89% for setup errors and severe …
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Ai-Enabled Online Plan Adaptation For Mr-Guided Stereotactic Ablative Radiotherapy (Sabr) of Head and Neck Cancer
… accuracy of the treatment delivery is limited by setup errors, anatomical changes, and intra-/inter-fraction organ motion. The emergence of MR-guided adaptive radiotherapy (ART) has the potential to further improve the SABR of HNC, by providing superior visualization of soft tissue and enabling …