rcbv-methods: Regional Cerebral Blood Volume
In dcemriS4: A Package for Image Analysis of DCE-MRI (S4 Implementation)

Description Usage Arguments Value Author(s)

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 signature 'array'
rCBV.fast(signal, mask, aif, time, multicore = FALSE,
  verbose = FALSE)

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

`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.