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dti (version 1.2-0.1)

Analysis of diffusion weighted imaging (DWI) data

Description

Diffusion Weighted Imaging (DWI) is a Magnetic Resonance Imaging modality, that measures diffusion of water in tissues like the human brain. The package contains R-functions to process diffusion-weighted data. The functionality includes diffusion tensor imaging (DTI), diffusion kurtosis imaging (DKI), modeling for high angular resolution diffusion weighted imaging (HARDI) using Q-ball-reconstruction and tensor mixture models, several methods for structural adaptive smoothing including POAS and msPOAS, and a streamline fiber tracking for tensor and tensor mixture models. The package provides functionality to manipulate and visualize results in 2D and 3D.

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Version

Install

install.packages('dti')

Monthly Downloads

448

Version

1.2-0.1

License

GPL (>= 2)

Maintainer

Karsten Tabelow

Last Published

December 16th, 2014

Functions in dti (1.2-0.1)

dti.smooth-methods

Methods for Function `dti.smooth' in Package `dti'
combineDWIdata

Combine two objects of class "dtiData")
dwi.smooth-methods

Smooth DWI data
dwiMixtensor-methods

Methods for Function `dwiMixtensor' in Package `dti'
dwiRiceBias-methods

Correction for Rician Bias
subsetg

Create an objects of class "dtiData" containing only a subset of gradient directions.
dkiTensor-methods

Diffusion Kurtosis Imaging (DKI)
dwiSqrtODF-methods

Methods for positive definite EAP and ODF estimation in Package dti
polyeder

Polyeders derived from the Icosahedron (icosa0) by sequential triangulation of surface triangles
colqFA

FA map color scheme
getsdofsb-methods

Estimate the noise standard deviation
dtiTensor-methods

Methods for Function `dtiTensor' in Package `dti'
optgradients

Optimal gradient directions for number of gradients between 6 and 162
tracking-methods

Methods for Function `tracking' in Package `dti'
plot-methods

Methods for Function `plot' in Package `dti'
optgrad

Optimal gradient directions
show-methods

Methods for Function `show' in Package `dti'
awssigmc

Estimate noise variance for multicoil MR systems
show3d-methods

Methods for Function `show3d' in Package `dti'
readDWIdata

Read Diffusion Weighted Data
getmask-methods

Methods for Function `getmask' in Package `dti'
extract-methods

Methods for Function `extract' and `[' in Package `dti'
print-methods

Methods for Function `print' in Package `dti'
pmatrix

Parallelize columnwise computations on a matrix using forking (generalizes function 'pvec' from package 'parallel')
summary-methods

Methods for Function `summary' in Package `dti'
showFAColorScale

Writes an image with the colqFA colorscale to disk.
sdpar-methods

Methods for Function `sdpar' in Package `dti'
medinria

Read/Write Diffusion Tensor Data from/to NIFTI File
dwi-class

Class "dwi"
dwiQball-methods

Methods for Function `dwiQball' in Package `dti'
dtiIndices-methods

Methods for Function `dtiIndices' in Package `dti'
dti-package

Analysis of diffusion weighted imaging (DWI) data