Metal Artifact Reduction in Cone-Beam Computed Tomography for Head and Neck Radiotherapy
نویسندگان
چکیده
منابع مشابه
Artifact reduction techniques in Cone Beam Computed Tomography (CBCT) imaging modality
Introduction: Cone beam computed tomography (CBCT) was introduced and became more common based on its low cost, fast image procedure rate and low radiation dose compared to CT. This imaging modality improved diagnostic and treatment-planning procedures by providing three-dimensional information with greatly reduced level of radiation dose compared to 2D dental imaging modalitie...
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A new method to reduce artifacts (MAR), produced by high-density objects, especially metal implants (MI), in X-ray CBCT is presented. MIs located in the field of view (FOV) result in artifacts influencing clinical diagnostics and treatments. The novel method reduces metal arti-facts by virtually replacing MIs by tissue objects of the same shape. This corrected data can be reconstructed with sig...
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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: Technology in Cancer Research & Treatment
سال: 2016
ISSN: 1533-0346,1533-0338
DOI: 10.1177/1533034615618319