sequencing

MLC leaf sequencing algorithms for converting fluence maps to deliverable photon IMRT plans.

matRad_maxLeafSpeed(apertureInfo)

call: apertureInfo = matRad_maxLeafSpeed(apertureInfo)
input: apertureInfo: aperture info struct
output: apertureInfo: aperture info struct

matRad_optDelivery(result, fast)

call: matRad_optDelivery(result,fast)
input: result: result struct from fluence optimization/sequencing fast: 1 => fastest possible delivery

0 => mutliply delivery time by 10%
output: apertureInfo: aperture shape info struct

matRad_discardApertures(beam, numToKeep)

the ones with the highest intensity-area product.

call

beam = matRad_discardApertures(beam,numToKeep)

input

beam: beam struct containing original shapes and: intensities

numToKeep: number of apertures to keep

output

beam: beam struct containing shapes and re-scaled: intensities of the apertures we are keeping

matRad_arcSequencing(sequencing, stf, weightToMU)

the ones with the highest intensity-area product.

call

beam = matRad_arcSequencing(sequencing, stf, weightToMU)

input

sequencing: shape sequencing structure stf: matRad steering struct (beam geometry etc.) weightToMU: conversion factor from weight to MU

output

beam: beam struct with shapes and weights distributed to: the correct optGantryAngles

matRad_engelLeafSequencing(resultGUI, stf, dij, numOfLevels, varargin)

multileaf collimator leaf sequencing algorithm for intensity modulated beams with multiple static segments accroding to Engel et al. 2005 Discrete Applied Mathematics

call

resultGUI = matRad_engelLeafSequencing(resultGUI,stf,dij,numOfLevels,visBool)

Input:

resultGUI – resultGUI struct to which the output data will be added, if this field is empty resultGUI struct will be created
stf – matRad steering information struct
dij – matRad’s dij matrix
numOfLevels – number of intensity levels for the sequencing

optional key-value pairs: visBool: toggle on/off visualization (optional - default: false) dynamic: toggle on/off dynamic delivery (optional - default: false)

Output:: resultGUI – matRad result struct containing the new dose cube as well as the corresponding weights

References: [1] http://www.sciencedirect.com/science/article/pii/S0166218X05001411

This file is part of the matRad project. It is subject to the license terms in the LICENSE file found in the top-level directory of this distribution and at https://github.com/e0404/matRad/LICENSE.md. No part of the matRad project, including this file, may be copied, modified, propagated, or distributed except according to the terms contained in the LICENSE file.

matRad_sequencing2ApertureInfo(sequencing, stf)

matRad function to generate a shape info struct based on the result of multileaf collimator sequencing

call

apertureInfo = matRad_sequencing2ApertureInfo(Sequencing,stf)

Input:

Sequencing – matRad sequencing result struct
stf – matRad steering information struct

Output:

apertureInfo – matRad aperture weight and shape info struct

References

This file is part of the matRad project. It is subject to the license terms in the LICENSE file found in the top-level directory of this distribution and at https://github.com/e0404/matRad/LICENSE.md. No part of the matRad project, including this file, may be copied, modified, propagated, or distributed except according to the terms contained in the LICENSE file.

matRad_siochiLeafSequencing(resultGUI, stf, dij, numOfLevels, varargin)

multileaf collimator leaf sequencing algorithm for intensity modulated beams with multiple static segments according to Siochi (1999) International Journal of Radiation Oncology * Biology * Physics, multileaf collimator leaf sequencing algorithm for intensity modulated beams with multiple static segments according to Siochi (1999)International Journal of Radiation Oncology * Biology * Physics, originally implemented in PLUNC (https://sites.google.com/site/planunc/)

Implemented in matRad by Eric Christiansen, Emily Heath, and Tong Xu

call

resultGUI = matRad_siochiLeafSequencing(resultGUI,stf,dij,pln) resultGUI = matRad_siochiLeafSequencing(resultGUI,stf,dij,pln,visBool)

Input:

resultGUI – resultGUI struct to which the output data will be added, if this field is empty resultGUI struct will be created
stf – matRad steering information struct
dij – matRad’s dij matrix
numOfLevels – number of intensity levels for the sequencing

optional key-value pairs: visBool: toggle on/off visualization (optional - default: false) dynamic: toggle on/off dynamic delivery (optional - default: false)

Output:: resultGUI – matRad result struct containing the new dose cube as well as the corresponding weights

References: [1] https://www.ncbi.nlm.nih.gov/pubmed/10078655

This file is part of the matRad project. It is subject to the license terms in the LICENSE file found in the top-level directory of this distribution and at https://github.com/e0404/matRad/LICENSE.md. No part of the matRad project, including this file, may be copied, modified, propagated, or distributed except according to the terms contained in the LICENSE file.

matRad_aperture2collimation(pln, stf, sequencing, apertureInfo)

matRad function to convert sequencing information / aperture information into collimation information in pln and stf for field-based dose calculation

call

[pln,stf] = matRad_aperture2collimation(pln,stf,sequencing,apertureInfo)

Input:

pln – pln file used to generate the sequenced plan
stf – stf file used to generate the sequenced plan
sequencing – sequencing information (from resultGUI)
apertureInfo – apertureInfo (from resultGUI)

Output:

pln – matRad pln struct with collimation information
stf – matRad stf struct with shapes instead of beamlets

References

This file is part of the matRad project. It is subject to the license terms in the LICENSE file found in the top-level directory of this distribution and at https://github.com/e0404/matRad/LICENSE.md. No part of the matRad project, including this file, may be copied, modified, propagated, or distributed except according to the terms contained in the LICENSE file.

matRad_leafTouching(apertureInfo)

Currently only works with VMAT, add option to work with IMRT (not as crucial)

call: apertureInfo = matRad_leafTouching(apertureInfo)
input: apertureInfo: matRad aperture weight and shape info struct
output: apertureInfo: matRad aperture weight and shape info struct

References

matRad_xiaLeafSequencing(resultGUI, stf, dij, numOfLevels, varargin)

multileaf collimator leaf sequencing algorithm for intensity modulated beams with multiple static segments according to Xia et al. (1998) Medical Physics

call

resultGUI = matRad_xiaLeafSequencing(resultGUI,stf,dij,numOfLevels) resultGUI = matRad_xiaLeafSequencing(resultGUI,stf,dij,numOfLevels,Name,Value,…)

Input:

resultGUI – resultGUI struct to which the output data will be added, if this field is empty resultGUI struct will be created
stf – matRad steering information struct
dij – matRad’s dij matrix
numOfLevels – number of intensity levels for the sequencing

optional key-value pairs: visBool: toggle on/off visualization (optional - default: false) dynamic: toggle on/off dynamic delivery (optional - default: false)

Output:: resultGUI – matRad result struct containing the new dose cube as well as the corresponding weights

References: [1] http://online.medphys.org/resource/1/mphya6/v25/i8/p1424_s1

This file is part of the matRad project. It is subject to the license terms in the LICENSE file found in the top-level directory of this distribution and at https://github.com/e0404/matRad/LICENSE.md. No part of the matRad project, including this file, may be copied, modified, propagated, or distributed except according to the terms contained in the LICENSE file.