highly significantp = 0.001
2 ). Among all pelvicalyceal units, AP pelvis diameter presented highly significant good positive correlations with RTT (p = 0.001, r = 0.71), and moderate positive correlations with T1/2 (p = 0.001, r = 0.5), Tmax (p = 0.001, r = 0.55), and CTT (p = 0.001, r = 0.4).