Calculate the standardized uptake value (SUV) time-activity curve from a tac object, the participant's weight, and the tracer dose. The weight must be in kg, and the tracer dose must be specified. The dose is converted to MBq, the tac is converted to kBq/cc, and the final SUV units are thus in g/cc. Aside from the tac object, the remaining parameters should be left NULL if the required data is in the tac object attributes (as can be done with batch_load().
Arguments
- tac
time-activity curve object (decay-corrected)
- dose
the injected tracer dose
- dose_unit
unit of tracer dose (e.g. "MBq", "kBq", "mCi"...)
- weight_kg
the participant's weight in kg
See also
Other SUV functions: suv
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)
# dose and weight are fabricated for the example
AD06_suv <- tac_suv(AD06, dose = 9.0, dose_unit = "mCi", weight_kg = 70)