Journal Article

Estimation of organ doses and effective doses in image-guided respiration-gated radiotherapy

Minoru Nakao, Satoshi Obara, Kuniaki Nabatame, Keiichi Akahane, Shigeru Sanada and Toshiyuki Shirai

in Radiation Protection Dosimetry

Volume 168, issue 1, pages 83-91
Published in print January 2016 | ISSN: 0144-8420
Published online April 2015 | e-ISSN: 1742-3406 | DOI: http://dx.doi.org/10.1093/rpd/ncv015
Estimation of organ doses and effective doses in image-guided respiration-gated radiotherapy

More Like This

Show all results sharing this subject:

  • Nuclear Chemistry, Photochemistry, and Radiation

GO

Show Summary Details

Preview

Dose conformity in thoracic and abdominal ion-beam radiotherapy is degraded by respiratory motion. To improve conformity, an image-guided respiration-gated system can be used in the treatment room. The purpose of this study was to estimate the organ doses and effective doses to patients from an image-guided respiration-gated system. Glass dosemeters were inserted into an adult anthropomorphic phantom and were attached to the surface on the phantom. The phantom was placed on the treatment couch, and the imaging dose from fluoroscopy was evaluated. In addition to the organ doses, the effective doses were also estimated according to the ICRP Publication 103. The irradiation time is over 3–5 min per beam angle. When image acquisition conditions were assumed for thoracic treatment, the effective doses and maximal skin doses were 0.48–0.79 mSv and 5.9–9.9 mGy, respectively. The estimated doses can be the base data for considering radiological protection in the radiotherapy.

Journal Article.  4765 words.  Illustrated.

Subjects: Nuclear Chemistry, Photochemistry, and Radiation

Full text: subscription required

How to subscribe Recommend to my Librarian

Users without a subscription are not able to see the full content. Please, subscribe or login to access all content.