Fig. 4From: The combination of 13N-ammonia and 11C-methionine in differentiation of residual/recurrent pituitary adenoma from the pituitary gland remnant after trans-sphenoidal AdenomectomyDiscriminant function results of the two groups. The functional results of RPA were obviously higher than that of PGR (1.65 ± 1.03 vs − 1.65 ± 0.97). The combination of the two tracers could distinguish these two clinical entities effectivelyBack to article page