Leveraging multi-layer imager detector design to improve low-dose performance for megavoltage cone-beam computed tomography
نویسندگان
چکیده
منابع مشابه
Low‐dose 2.5 MV cone‐beam computed tomography with thick CsI flat‐panel imager
Most of the treatment units, both new and old models, are equipped with a megavoltage portal imager but its use for volumetric imaging is limited. This is mainly due to the poor image quality produced by the high-energy treatment beam (> 6MV). A linac at our center is equipped with a prototype 2.5 MV imaging beam. This study evaluates the feasibility of low-dose megavoltage cone-beam imaging wi...
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Accurate dose delivery is essential for the success of intensity-modulated radiation therapy (IMRT) for patients with head-and-neck (HN) cancer. Reproducibility of IMRT dose delivery to HN regions can be critically influenced by treatment-related changes in body contours. Moreover, some set-up margins may not be adaptable to positional uncertainties of HN structures at every treatment. To obtai...
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ژورنال
عنوان ژورنال: Physics in Medicine & Biology
سال: 2018
ISSN: 1361-6560
DOI: 10.1088/1361-6560/aaa160