suvr: Calculate weighted SUVRs for specified regions of interest

In tacmagic: Positron Emission Tomography Time-Activity Curve Analysis

Description

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")

tacmagic documentation built on Dec. 15, 2020, 5:13 p.m.