Changes to dose in the build-up region when using multi-leaf collimators in place of lead blocks supported on an accessory tray.

2.50
Hdl Handle:
http://hdl.handle.net/10541/98093
Title:
Changes to dose in the build-up region when using multi-leaf collimators in place of lead blocks supported on an accessory tray.
Authors:
Adams, Elizabeth J; Hounsell, Alan R
Abstract:
Doses in the build-up region have been compared for regular fields with and without a perspex accessory tray and for two irregular fields defined by either a Philips multi-leaf collimator (MLC) or lead blocks. The results show an increase in doses within the build-up region, by up to a factor of two, primarily due to the presence of the accessory tray. Fields shaped with the MLC exhibited build-up characteristics similar to those in unblocked fields and hence there will be systematic changes to the build-up dose when treatments are transferred from lead blocking techniques to those using an MLC mounted within the treatment head.
Affiliation:
North Western Medical Physics Department, Christie Hospital, Manchester, UK.
Citation:
Changes to dose in the build-up region when using multi-leaf collimators in place of lead blocks supported on an accessory tray. 1995, 37 (3):225-9 Radiother Oncol
Journal:
Radiotherapy and Oncology
Issue Date:
Dec-1995
URI:
http://hdl.handle.net/10541/98093
DOI:
10.1016/0167-8140(95)01662-7
PubMed ID:
8746591
Type:
Article
Language:
en
ISSN:
0167-8140
Appears in Collections:
All Christie Publications

Full metadata record

DC FieldValue Language
dc.contributor.authorAdams, Elizabeth Jen
dc.contributor.authorHounsell, Alan Ren
dc.date.accessioned2010-05-06T16:00:29Z-
dc.date.available2010-05-06T16:00:29Z-
dc.date.issued1995-12-
dc.identifier.citationChanges to dose in the build-up region when using multi-leaf collimators in place of lead blocks supported on an accessory tray. 1995, 37 (3):225-9 Radiother Oncolen
dc.identifier.issn0167-8140-
dc.identifier.pmid8746591-
dc.identifier.doi10.1016/0167-8140(95)01662-7-
dc.identifier.urihttp://hdl.handle.net/10541/98093-
dc.description.abstractDoses in the build-up region have been compared for regular fields with and without a perspex accessory tray and for two irregular fields defined by either a Philips multi-leaf collimator (MLC) or lead blocks. The results show an increase in doses within the build-up region, by up to a factor of two, primarily due to the presence of the accessory tray. Fields shaped with the MLC exhibited build-up characteristics similar to those in unblocked fields and hence there will be systematic changes to the build-up dose when treatments are transferred from lead blocking techniques to those using an MLC mounted within the treatment head.en
dc.language.isoenen
dc.subject.meshHumans-
dc.subject.meshLead-
dc.subject.meshModels, Anatomic-
dc.subject.meshRadiation Monitoring-
dc.subject.meshRadiation Protection-
dc.subject.meshRadiodermatitis-
dc.subject.meshRadiotherapy Dosage-
dc.subject.meshRadiotherapy, High-Energy-
dc.titleChanges to dose in the build-up region when using multi-leaf collimators in place of lead blocks supported on an accessory tray.en
dc.typeArticleen
dc.contributor.departmentNorth Western Medical Physics Department, Christie Hospital, Manchester, UK.en
dc.identifier.journalRadiotherapy and Oncologyen

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