Package: qMRI 1.2.7.9

qMRI: Methods for Quantitative Magnetic Resonance Imaging ('qMRI')

Implementation of methods for estimation of quantitative maps from Multi-Parameter Mapping (MPM) acquisitions (Weiskopf et al. (2013) <doi:10.3389/fnins.2013.00095>) and analysis of Inversion Recovery MRI data. Usage of the package is described in Polzehl and Tabelow (2023), "Magnetic Resonance Brain Imaging", 2nd Edition, Chapter 6 and 7, Springer, Use R! Series. <doi:10.1007/978-3-031-38949-8>. J. Polzehl and K. Tabelow (2023), "Magnetic Resonance Brain Imaging - Modeling and Data Analysis Using R: Code and Data." <doi:10.20347/WIAS.DATA.6> provides extensive example code and data.

Authors:Joerg Polzehl [aut], Karsten Tabelow [aut, cre], WIAS Berlin [cph, fnd]

qMRI_1.2.7.9.tar.gz
qMRI_1.2.7.9.zip(r-4.7)qMRI_1.2.7.9.zip(r-4.6)qMRI_1.2.7.9.zip(r-4.5)
qMRI_1.2.7.9.tgz(r-4.6-x86_64)qMRI_1.2.7.9.tgz(r-4.6-arm64)qMRI_1.2.7.9.tgz(r-4.5-x86_64)qMRI_1.2.7.9.tgz(r-4.5-arm64)
qMRI_1.2.7.9.tar.gz(r-4.7-arm64)qMRI_1.2.7.9.tar.gz(r-4.7-x86_64)qMRI_1.2.7.9.tar.gz(r-4.6-arm64)qMRI_1.2.7.9.tar.gz(r-4.6-x86_64)
qMRI_1.2.7.9.tgz(r-4.6-emscripten)
manual.pdf |manual.html✨
card.svg |card.png
qMRI/json (API)

# Install 'qMRI' in R:
install.packages('qMRI', repos = c('https://ktabelow.r-universe.dev', 'https://cloud.r-project.org'))
Datasets:
  • colMT - MT map color scheme

On CRAN:

Conda:

This package does not link to any Github/Gitlab/R-forge repository. No issue tracker or development information is available.

4.32 score 35 scripts 203 downloads 6 mentions 28 exports 17 dependencies

Last updated from:1e3ef49efc. Checks:11 WARNING, 1 ERROR, 1 OK. Indexed: yes.

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wasm-releaseOK170

Exports:[.ESTATICSModel[.IRdata[.IRfluid[.IRmixed[.MPMData[.qMaps[.sESTATICSModelcalculateQIestimateESTATICSestimateIRestimateIRfluidestimateIRsolidestimateIRsolidfixedextract.ESTATICSModelextract.IRdataextract.IRfluidextract.IRmixedextract.MPMDataextract.qMapsextract.sESTATICSModelgenerateIRDataMREdisplacementreadIRDatareadMPMDatasmoothESTATICSsmoothIRSolidwriteESTATICSwriteQI

Dependencies:abindadimproawsawsMethodsbitopscligluegsllifecyclemagrittroro.niftiRcpprlangRNiftistringistringrvctrs

An example session for analyzing Inversion Recovery MRI and MR Elastography data

Rendered fromIRMRI-Example.Rnwusingutils::Sweaveon May 11 2026.

Last update: 2025-03-06
Started: 2023-09-06

An example session for analyzing quantitative MRI data in the Multi-Parameter Mapping framework

Rendered fromqMRI-Example.Rnwusingutils::Sweaveon May 11 2026.

Last update: 2024-05-23
Started: 2019-05-31

Readme and manuals

Help Manual

Help pageTopics
Methods for Quantitative Magnetic Resonance Imaging ('qMRI')qMRI-package qMRI
Estimate noise variance for multicoil MR systemsawslsigmc awssigmc
Obtain quantitative maps from estimated ESTATICS parameters.calculateQI
MT map color schemecolMT
Estimate parameters in the ESTATICS model.estimateESTATICS
Estimate IRMRI parametersestimateIR
Estimate parameters in Inversion Recovery MRI experiments model for CSF voxelestimateIRfluid
Estimate parameters in Inversion Recovery MRI experiments mixture model for non-fluid voxelestimateIRsolid
Estimate mixture parameter in Inversion Recovery MRI experiments mixture model for non-fluid voxelestimateIRsolidfixed
Methods to extract information from objects of class '"MPMData"', '"ESTATICSModel"', '"sESTATICSModel"', '"qMaps"', '"IRdata"', '"IRfluid"' and '"IRmixed"'.extract.ANY-method extract.ESTATICSModel extract.IRdata extract.IRfluid extract.IRmixed extract.MPMData extract.qMaps extract.sESTATICSModel [.ANY-method [.ESTATICSModel [.IRdata [.IRfluid [.IRmixed [.MPMData [.qMaps [.sESTATICSModel
generate IR MRI example datagenerateIRData
Calculate the motion induced signal phase for IR-MRE in biphasic materialMREdisplacement
Prepare IRMRI datasetreadIRData
Read experimental Multi-Parameter Mapping (MPM) data.readMPMData
Adaptive smoothing of ESTATICS parameters and MPM datasmoothESTATICS
Smooth object generated by function 'estimateIRsolid'smoothIRSolid
Write maps of ESTATICS parameters in standardized form as NIfTI files.writeESTATICS
Write estimated maps in standardized form as NIfTI files.writeQI