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dti (version 1.5.4)

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

225

Version

1.5.4

License

GPL (>= 2)

Maintainer

Karsten Tabelow

Last Published

September 6th, 2023

Functions in dti (1.5.4)

dti-package

tools:::Rd_package_title("dti")
dwiMD-methods

Methods for Mean Diffusivity in Package `dti'
dwiMixtensor-methods

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

Read Diffusion Weighted Data
polyeder

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

Combine two objects of class "dtiData")
print-methods

Methods for Function `print' in Package `dti'
dwiSqrtODF-methods

Methods for positive definite EAP and ODF estimation in Package dti
extract-methods

Methods for Function `extract' and `[' in Package `dti'
medinria

Read/Write Diffusion Tensor Data from/to NIFTI File
optgrad

Optimal gradient directions
sdpar-methods

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

Writes an image with the colqFA colorscale to disk.
show3d-methods

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

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

Diffusion Kurtosis Imaging (DKI)
summary-methods

Methods for Function `summary' in Package `dti'
dwi-class

Class "dwi"
optgradients

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

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

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

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

Correction for Rician Bias
AdjacencyMatrix

Create an adjacency matrix from fiber tracking results
awssigmc

Estimate noise variance for multicoil MR systems
dtiIndices-methods

Methods for Function `dtiIndices' in Package `dti'
dti.smooth-methods

Methods for Function `dti.smooth' in Package `dti'
getmask-methods

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

Estimate the noise standard deviation
dtiTensor-methods

Methods for Function `dtiTensor' in Package `dti'
dwi.smooth-methods

Smooth DWI data
setmask-methods

Methods for Function `setmask' in Package `dti'
show-methods

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

FA map color scheme
dti.options

Set and manipulate image orientations for plots.