TABLE 4.

Results of Polar Map Segment Analysis and Correlation Coefficient for 180° Acquisitions in Heart Rate Variability

Perfusion	STPG SPECT			NPG SPECT
Perfusion	UnTagAC	75% GAC	40% GAC	UnTagAC	75% GAC	40% GAC	Non-AC
40 bpm
Normal (P)	0.482	0.493	0.448	0.483	0.452	0.448	0.087
Defect (P)	0.246	0.467	0.388	0.270	0.455	0.388	0.402
STPGAC method vs. (r)	0.963	0.999	0.995	0.987	0.996	0.995	0.884
50 bpm
Normal (P)	0.282	0.409	0.359	0.282	0.409	0.359	0.110
Defect (P)	0.283	0.454	0.390	0.283	0.454	0.390	0.429
STPGAC method vs. (r)	0.982	0.995	0.997	0.982	0.995	0.997	0.920
60 bpm
Normal (P)	0.500	0.468	0.493	0.396	0.486	0.376	0.121
Defect (P)	0.477	0.479	0.460	0.289	0.384	0.293	0.403
STPGAC method vs. (r)	0.995	0.996	0.995	0.991	0.994	0.996	0.881
70 bpm
Normal (P)	0.460	0.418	0.406	0.471	0.465	0.476	0.104
Defect (P)	0.449	0.477	0.456	0.388	0.409	0.366	0.497
STPGAC method vs. (r)	0.995	0.984	0.986	0.993	0.984	0.992	0.895
80 bpm
Normal (P)	0.494	0.477	0.496	0.391	0.494	0.425	0.119
Defect (P)	0.493	0.441	0.500	0.386	0.441	0.354	0.489
STPGAC method vs. (r)	0.998	0.989	0.998	0.993	0.992	0.996	0.904
90 bpm
Normal (P)	0.453	0.396	0.456	0.381	0.464	0.435	0.147
Defect (P)	0.464	0.293	0.497	0.406	0.319	0.363	0.443
STPGAC method vs. (r)	0.995	0.961	0.995	0.991	0.980	0.995	0.899
100 bpm
Normal (P)	0.321	0.448	0.449	0.438	0.484	0.457	0.098
Defect (P)	0.473	0.483	0.475	0.380	0.455	0.427	0.487
STPGAC method vs. (r)	0.919	0.991	0.997	0.992	0.986	0.992	0.918

Non-AC = non—attenuation-corrected; r = correlation coefficient.
Normal = F_(10,10) < 0.5, P = 0.05; defect = F_(5,5) < 0.5, P = 0.05.