X-ray field compensation with multileaf collimators

Thomas R Bortfeld; Darren L Kahler; Timothy J Waldron; Arthur L Boyer

doi:10.1016/0360-3016(94)90200-3

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X-ray field compensation with multileaf collimators

Journal article

Peer reviewed

X-ray field compensation with multileaf collimators

Thomas R Bortfeld, Darren L Kahler, Timothy J Waldron and Arthur L Boyer

International journal of radiation oncology, biology, physics, Vol.28(3), pp.723-730

1994

DOI: 10.1016/0360-3016(94)90200-3

PMID: 8113118

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Abstract

Purpose : It has been proposed that conformal therapy can be carried out with static ports that are each individually compensated to deliver an optimal total dose distribution. If this proposal is to be implemented, one must have a means of compensating or modulating the fluence distributions within the boundaries of individual treatment fields. A theory was developed and implemented to achieve this goal. Methods and Materials : The theory allowed creation of a leaf-setting sequence for a desired level of field-modulation precision. This method of beam modulation was experimentally verified using radiographic film to integrate the dose delivered by the sequence of discrete static multileaf collimator-defined subfields. Results : Beam profiles were generated that matched the planned beam profiles to within the specified degree of precision. Conclusion : This methodology is a candidate for implementation of inverse planning for conformal therapy.

Multileaf collimators

Compensation

X-rays

Conformal therapy

Details

Title: Subtitle: X-ray field compensation with multileaf collimators
Creators: Thomas R Bortfeld - Deutsches Krebsforschungszentrum, Forschungsschwerpunkt Radiologie (FS 5), Im Neuenheimer Feld 280, 69120 Heidelberg, Germany
Darren L Kahler - The Department of Radiation Physics, The University of Texas M.D. Anderson Cancer Center, 1515 Holcombe Blvd., Houston, TX 77030, U.S.A
Timothy J Waldron - The Department of Radiation Physics, The University of Texas M.D. Anderson Cancer Center, 1515 Holcombe Blvd., Houston, TX 77030, U.S.A
Arthur L Boyer - The Department of Radiation Physics, The University of Texas M.D. Anderson Cancer Center, 1515 Holcombe Blvd., Houston, TX 77030, U.S.A
Resource Type: Journal article
Publication Details: International journal of radiation oncology, biology, physics, Vol.28(3), pp.723-730
DOI: 10.1016/0360-3016(94)90200-3
PMID: 8113118
NLM abbreviation: Int J Radiat Oncol Biol Phys
ISSN: 0360-3016
eISSN: 1879-355X
Publisher: Elsevier Inc
Language: English
Date published: 1994
Academic Unit: Radiation Oncology
Record Identifier: 9984047857102771

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