Application of Cone Beam Computed Tomography to Conventional Radiotherapy: Limited Angle of Projections for Lymph Nodes Located above or below the Collarbone
Journal Title: International Journal of Radiology and Radiation Oncology - Year 2015, Vol 1, Issue 1
Abstract
Various techniques are used in image-guided radiotherapy (IGRT). Cone beam computed tomography (CBCT) is widely used in IGRT on linear accelerators. The increased accuracy of IGRT enables reducing planning target volume margins and doses to normal tissues. However, for radiation therapies requiring fractionated irradiation, increased exposure dose attributed to CBCT becomes problematic. We investigated the smallest projection angle required to provide target accuracy for CBCT of lymph nodes located above or below the collarbone in breast cancer patients.
Authors and Affiliations
Kawakami Wataru, Takemura Akihiro, Yokoyama Kunihiko, Nakajima Kenichi, Nakaichi Tetsu, Koshida Kichiro
Keywords
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- EP ID EP541006
- DOI 10.17352/ijrro.000005
- Views 304
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