deconvolutionSVD: Regularize SVD (deconvolution) solution of cerebral blood...
In neuroconductor-devel/ANTsR: ANTs in R: Quantification Tools for Biomedical Images
Description
Usage
Arguments
Value
Author(s)
Examples
View source: R/bloodPerfusionSVD.R
Description
Ostergaard's regularization approach for a model independent solution of
cerebral blood flow using a blood pool contrast agent
(http://www.ncbi.nlm.nih.gov/pubmed/8916023).
Usage
1
deconvolutionSVD(arterialInputFunction, thresholdSVD = 0.2)
Arguments
arterialInputFunction
vector specifying the arterial input function
over time.
thresholdSVD
is used to threshold the smaller elements of the
diagonal matrix during the SVD regularization. 0.2 is a common choice
(cf. page 571, end of column 2 in
http://www.ncbi.nlm.nih.gov/pubmed/16971140).
Value
regularized residue function, i.e. the right-hand side of
CBF * dT * R = ( V * L^-1 * U^T ) * Cvoi.
Author(s)
Tustison NJ
Examples
1
2
3
4
5
6
S0aif <- 17.62
Saif <- c( 16.25, 16.37, 20.22, 78.96, 230.5, 249.79, 198.58, 147.76,
110.39, 111.64, 129.43 )
Caif <- -log( Saif / S0aif )
dSVD <- deconvolutionSVD( Caif, 0.2 )
neuroconductor-devel/ANTsR documentation built on April 1, 2021, 1:02 p.m.
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Description Usage Arguments Value Author(s) Examples
View source: R/bloodPerfusionSVD.R
Description
Ostergaard's regularization approach for a model independent solution of cerebral blood flow using a blood pool contrast agent (http://www.ncbi.nlm.nih.gov/pubmed/8916023).
Usage
1 | deconvolutionSVD(arterialInputFunction, thresholdSVD = 0.2)
|
Arguments
arterialInputFunction |
vector specifying the arterial input function over time. |
thresholdSVD |
is used to threshold the smaller elements of the diagonal matrix during the SVD regularization. 0.2 is a common choice (cf. page 571, end of column 2 in http://www.ncbi.nlm.nih.gov/pubmed/16971140). |
Value
regularized residue function, i.e. the right-hand side of CBF * dT * R = ( V * L^-1 * U^T ) * Cvoi.
Author(s)
Tustison NJ
Examples
1 2 3 4 5 6 | S0aif <- 17.62
Saif <- c( 16.25, 16.37, 20.22, 78.96, 230.5, 249.79, 198.58, 147.76,
110.39, 111.64, 129.43 )
Caif <- -log( Saif / S0aif )
dSVD <- deconvolutionSVD( Caif, 0.2 )
|
R Package Documentation
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We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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