• Login
    View Item 
    •   Home
    • The Christie Research Publications Repository
    • All Christie Publications
    • View Item
    •   Home
    • The Christie Research Publications Repository
    • All Christie Publications
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    All of ChristieCommunitiesTitleAuthorsIssue DateSubmit DateSubjectsThis CollectionTitleAuthorsIssue DateSubmit DateSubjectsProfilesView

    My Account

    LoginRegister

    Local Links

    The Christie WebsiteChristie Library and Knowledge Service

    Statistics

    Display statistics

    Rectangular edge synchronization for intensity modulated radiation therapy with dynamic multileaf collimation.

    • CSV
    • RefMan
    • EndNote
    • BibTex
    • RefWorks
    Authors
    Budgell, Geoff J
    Sykes, Jonathan R
    Wilkinson, John M
    Affiliation
    North Western Medical Physics, Christie Hospital NHS Trust, Manchester, UK. prsgjb@dalpha2.cr.man.ac.uk
    Issue Date
    1998-10
    
    Metadata
    Show full item record
    Abstract
    The implementation of intensity modulated radiotherapy by dynamic multileaf collimator control involves the use of interpreter software which creates leaf trajectory plans for each leaf pair. Interpreter software for use with an Elekta SL15 linear accelerator and dedicated multileaf collimator has been written and tested. In practice the ideal trajectory plans often predict contact between leaves from opposing leaf banks, but this is prohibited by control software on the Elekta system as it could lead to mechanical damage. If the modulation within the geometric limits of a shaped field is not to be compromised then strategies to avoid leaf contact result in additional unwanted doses outside the geometric edge. The magnitude of any such additional dose can be reduced to acceptable levels by a technique which we have called rectangular edge synchronization. The performance of interpreter software which incorporates rectangular edge synchronization has been compared with that of potentially more efficient software which does not. The option containing the rectangular edge synchronization algorithm was shown to work consistently well at high monitor unit rates, and without incurring leaf contacts, under a wide range of test conditions. It therefore provides a sound basis for using intensity modulation to replace mechanical wedges, to simulate customized patient shape compensators, or to implement the results of inverse treatment planning processes that require superimposed intensity modulated beams.
    Citation
    Rectangular edge synchronization for intensity modulated radiation therapy with dynamic multileaf collimation. 1998, 43 (10):2769-84 Phys Med Biol
    Journal
    Physics in Medicine and Biology
    URI
    http://hdl.handle.net/10541/91972
    DOI
    10.1088/0031-9155/43/10/007
    PubMed ID
    9814516
    Type
    Article
    Language
    en
    ISSN
    0031-9155
    ae974a485f413a2113503eed53cd6c53
    10.1088/0031-9155/43/10/007
    Scopus Count
    Collections
    All Christie Publications

    entitlement

    Related articles

    • Design of a fast multileaf collimator for radiobiological optimized IMRT with scanned beams of photons, electrons, and light ions.
    • Authors: Svensson R, Larsson S, Gudowska I, Holmberg R, Brahme A
    • Issue date: 2007 Mar
    • An experimental investigation into the radiation field offset of a dynamic multileaf collimator.
    • Authors: Vial P, Oliver L, Greer PB, Baldock C
    • Issue date: 2006 Nov 7
    • Algorithms for optimal sequencing of dynamic multileaf collimators.
    • Authors: Kamath S, Sahni S, Palta J, Ranka S
    • Issue date: 2004 Jan 7
    • Study of dosimetric penumbra due to multileaf collimation on a medical linear accelerator.
    • Authors: Sun J, Zhu Y
    • Issue date: 1995 Jul 30
    • A practical method to calculate head scatter factors in wedged rectangular and irregular MLC shaped beams for external and internal wedges.
    • Authors: Georg D, Olofsson J, Künzler T, Aiginger H, Karlsson M
    • Issue date: 2004 Oct 21
    DSpace software (copyright © 2002 - 2025)  DuraSpace
    Quick Guide | Contact Us
    Open Repository is a service operated by 
    Atmire NV
     

    Export search results

    The export option will allow you to export the current search results of the entered query to a file. Different formats are available for download. To export the items, click on the button corresponding with the preferred download format.

    By default, clicking on the export buttons will result in a download of the allowed maximum amount of items.

    To select a subset of the search results, click "Selective Export" button and make a selection of the items you want to export. The amount of items that can be exported at once is similarly restricted as the full export.

    After making a selection, click one of the export format buttons. The amount of items that will be exported is indicated in the bubble next to export format.