TABLE 2.

Correlations (Spearman) Between Tracer Uptake and Biochemical Activity

Biochemical parameter	IMT uptake		¹¹¹In-octreotide uptake
Biochemical parameter	r	P	r	P
Serotonin markers
Platelet serotonin	0.57*	0.006	0.45*	0.05
Urinary serotonin	0.62*	0.002	0.44*	0.05
5-HIAA excretion	0.67*	<0.001	0.51*	0.03
Dopamine markers
Dopamine	−0.02	0.93	−0.08	0.60
DOPAC	0.47	0.12	0.26	0.41
HVA	0.60*	0.03	0.46	0.11
3-Methoxytyramine	0.46	0.15	0.24	0.47
Relative sum dopamine metabolites	0.61*	0.02	0.38	0.20
Other catecholamine markers
Adrenaline	−0.01	0.96	−0.05	0.86
Noradrenaline	0.10	0.70	−0.16	0.55
VMA	0.18	0.57	0.01	0.96
MHPG	−0.28	0.34	−0.02	0.95
Metanephrines	0.47	0.14	−0.21	0.53
Normetanephrines	0.01	0.97	0.07	0.84