Learn R Programming

⚠️There's a newer version (1.5.4.3) of this package.Take me there.

dti (version 1.1-4)

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), structural adaptive smoothing in in case of (DTI) (K. Tabelow, J. Polzehl, V. Spokoiny, and H.U. Voss, Diffusion Tensor Imaging: Structural Adaptive Smoothing, Neuroimage 39(4), 1763-1773 (2008)), modeling for high angular resolution diffusion weighted imaging (HARDI) using Q-ball-reconstruction and tensor mixture models and a streamline fiber tracking for tensor and tensor mixture models. The package provides functionality to manipulate and visualize results in 2D and 3D.

Copy Link

Version

Install

install.packages('dti')

Monthly Downloads

225

Version

1.1-4

License

GPL (>= 2)

Maintainer

Karsten Tabelow

Last Published

March 25th, 2013

Functions in dti (1.1-4)

medinria

Read/Write Diffusion Tensor Data from/to NIFTI File
dwiMixtensor-methods

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

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

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

Class "dwi"
combineDWIdata

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

Correction for Rician Bias
sdpar-methods

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

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

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

Methods for Function `print' in Package `dti'
show3d-methods

Methods for Function `show3d' in Package `dti'
dtiTensor-methods

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

Smooth DWI data
summary-methods

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

Estimate the noise standard deviation
readDWIdata

Read Diffusion Weighted Data
subsetg

Create an objects of class "dtiData" containing only a subset of gradient directions.
dti-package

DTI Analysis
dtiIndices-methods

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

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

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

Optimal gradient directions
awssigmc

Estimate noise variance for multicoil MR systems
extract-methods

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

FA map color scheme
plot-methods

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

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

Optimal gradient directions for number of gradients between 6 and 162