. Author manuscript; available in PMC: 2017 Dec 1.

Published in final edited form as: Eur J Nucl Med Mol Imaging. 2016 Aug 25;43(13):2374–2380. doi: 10.1007/s00259-016-3477-3

Table 1.

Correlation of sensor and PET metrics. Sensor data (TAC areas, integrated counts) determined over various intervals are well correlated with SUV data from subsequent PET.

TAC interval	Sensor arm	Sensor metric vs. SUVmax		Sensor metric vs. SUVpeak
TAC interval	Sensor arm	ρ^a	p	ρ^a	p
Peak only	Injection	0.503	0.143	0.479	0.166
Peak only	I/C ratio	0.297	0.407	0.297	0.407
0–10 min	Injection	0.673	0.039	0.758	0.016
0–10 min	I/C ratio	0.806	0.008	0.806	0.008
0–20 min	Injection	0.612	0.067	0.709	0.028
0–20 min	I/C ratio	0.903	0.001	0.903	0.001
0–30 min	Injection	0.564	0.096	0.673	0.039
0–30 min	I/C ratio	0.903	0.001	0.903	0.001
0–40 min	Injection	0.515	0.133	0.612	0.067
0–40 min	I/C ratio	0.842	0.005	0.842	0.005
30–40 min	Injection	0.382	0.279	0.467	0.178
30–40 min	I/C ratio	0.770	0.014	0.770	0.014

TAC, time activity curve; AUC, area-under-curve; I/C, injection/control (contralateral arm for sensors; right liver lobe for PET); SUV, standardized uptake value.

Spearman rank correlation coefficient.