Organ and effective doses from verification techniques in image-guided radiotherapy
Language English Country England, Great Britain Media print-electronic
Document type Journal Article, Research Support, Non-U.S. Gov't
PubMed
21816726
DOI
10.1093/rpd/ncr335
PII: ncr335
Knihovny.cz E-resources
- MeSH
- Radiotherapy Dosage * MeSH
- Phantoms, Imaging MeSH
- Head diagnostic imaging MeSH
- Neck diagnostic imaging MeSH
- Humans MeSH
- Prostatic Neoplasms diagnostic imaging radiotherapy MeSH
- Pelvis diagnostic imaging MeSH
- Cone-Beam Computed Tomography * MeSH
- Radiotherapy, Image-Guided * MeSH
- Thermoluminescent Dosimetry MeSH
- Check Tag
- Humans MeSH
- Male MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
The purpose of this work was an evaluation of organ doses and effective doses from three verification techniques in Image-Guided Radiotherapy: from kilovoltage (kV) cone beam computed tomography (CBCT) scans, from two orthogonal kV images and from two orthogonal megavoltage (MV) images for two different treatment sites: pelvis and head and neck (H&N). For comparison reasons, organ doses and effective doses from prostate and H&N radiotherapy were also evaluated. Measurements of organ doses were performed in a male anthropomorphic Rando phantom by means of thermoluminescent dosemeters. In this investigation, measured organ doses from one CBCT scan, from two MV images and from two kV images of pelvis represent typically 1-6, 1-10 and 0.05-1 %, respectively, of organ doses resulting from one fraction of prostate radiotherapy. The maximum effective doses from CBCT scans, kV images and MV images of pelvis are 5.6, 0.8 and 11.9 mSv, respectively.
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