Method of Monitor unit (MU) calculation for intensity modulated photon field

Stanford Reference:

00-170

Abstract

Researchers in Prof. Lei Xing's laboratory have developed a simple and efficient method for MU calculation for intensity modulated beams. In Intensity Modulated Radiation Therapy (IMRT), a pressing issue is how to efficiently verify the MU calculation of the treatment planning system. This technology expresses the dose at a spatial point as a summation of the contributions from all beamlets, each being modulated by a dynamic modulation factor. The approach is independent of leaf sequence algorithms and delivery machines and its effectiveness was demonstrated by using several IMRT cases.

Applications

IMRT - the technique can be used as a redundant check of IMRT treatment plans from an inverse treatment planning system

Advantages

Low cost, easy to use, simple implementation
Versatile - handles a variety of clinical situations, including off-axis dose calculation, inhomogeneous media, low dose region, patient contour variation
Expandable - to deal with a variety of IMRT techniques, including MLC based IMRT, MIMiC, Tomotherapy and intensity modulated arc therapy.

Publications

L. Xing, Y. Chen, J. Li, G. Luxton, and A. Boyer, Monitor unit calculation for an intensity modulated photon field by a simple scatter-summation algorithm, Physics in Medicine and Biology 45, N1-7, 2000.

Innovators & Portfolio

Lei Xing more technologies from Lei Xing »

Patent Status

Date Released

7/12/2009 12:00

Licensing Contact

Chris Tagge, Technology Licensing Program Manager
(650) 725-8402
Request Info

99-138		Monitor Unit Calculation in Intensity Modulated Radiation Therapy
02-228		Method of Monitor unit (MU) calculation for intensity modulated photon field
07-063		Combining X-ray and External Respiratory Signals for Real-Time Target Position Estimation

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Related Keywords

MD: therapeutics: radiation therapy MD: software: radiation therapy radiation

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