The Goertzel algorithm is proposed as a method to obtain
the first harmonic coefficient of time activity curves from equilibrium
gated cardiac studies. The coefficients are used to produce functional
images. The algorithm achieves an important reduction in The Goertzel algorithm is proposed as a method to obtain
the first harmonic coefficient of time activity curves from equilibrium
gated cardiac studies. The coefficients are used to produce functional
images. The algorithm achieves an important reduction in the number of
operations and memory accesses needed to compute the coefficients[+][-]
