The version is 0.8.5, fit_sinf, fit time-activity curves with this program. fit_sinf can fit the time-activity curve (TAC) of PET tracer in plasma or blood to a four-to-ten parameter function. This function may be applied when PET tracer is introduced into venous blood as a short infusion. Function: f(t)= if tTa and t=Ta+Ti :...