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Calculate weighted SUVRs for specified regions of interest

Source: R/SUVR.R
suvr.Rd

Calculate the standardized uptake value ratio (SUVR) for all ROIs in the provided tac data, using the specified reference region.

Usage

suvr(tac, SUVR_def, ref, ...)

Arguments

tac

The time-activity curve data from tac_roi()

SUVR_def

a vector of start times for window to be used in SUVR

ref

a string, e.g. "cerebellum", to specify reference region

...

When called from tm_batch, unused parameters may be supplied

Value

A data.frame of SUVR values for the specified ROIs

See also

Other SUVR functions: suvr_auc

Examples

f <- system.file("extdata", "AD06.tac", package="tacmagic")
fv <- system.file("extdata", "AD06_TAC.voistat", package="tacmagic")
AD06_tac <- load_tac(f, format="PMOD")
AD06_volume <- load_vol(fv, format="voistat")
AD06 <- tac_roi(tac=AD06_tac, volumes=AD06_volume, ROI_def=roi_ham_pib(),  
                merge=FALSE, PVC=FALSE)

AD06_SUVR <- suvr(AD06, SUVR_def=c(3000,3300,3600), ref="cerebellum")