Calculate SUVRs for regions of interest with AUC from mid-frame times

Calculate the standardized uptake value ratio (SUVR) for all ROIs in the provided tac data, using the specified reference region. This is an alternate to suvr() which should provide very similar values.

Usage

suvr_auc(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

is 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 #' 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_auc(AD06, SUVR_def=c(3000,3300,3600), ref="cerebellum")

See also

Other SUVR functions: suvr