Regional Cerebral Blood Volume — rCBV.fast • dcemriS4

Quantification of relative cerebral blood volume (rCBV) using the first pass from a bolus injection of a contrast agent.

rCBV.fast(signal, ...)

# S4 method for array
rCBV.fast(signal, mask, aif, time, multicore = FALSE, verbose = FALSE)

rCBV(Ct, Ca, time, Hf = 1, rho = 1)

Arguments

signal	is a multidimensional array of signal intensities (or concentrations). The last dimension is assumed to be a function of the acquisition times, while the previous dimenions are assued to be spatial.
...	Additional variables defined by the method.
mask	is a (logical) multidimensional array that identifies the voxels to be analyzed.
aif	Arterial Input Function.
time	is the vector of acquisition times associated with the dynamic data.
multicore	is a logical variable (default = `FALSE`) that allows parallel processing via parallel.
verbose	is a logical variable (default = `FALSE`) that allows text-based feedback during execution of the function.
Ct	is the time series of contrast agent concentration in tissue.
Ca	is the time series of contrast agent concentration in the blood.
Hf	is the hematocrit factor.
rho	is the density of brain tissue.

Value

A nifti object containing the estimates of regional cerebral blood volume (rCBV).

Author

Brandon Whitcher bwhitcher@gmail.com