Table 2.

Myocardial Perfusion Pattern

	Normal RV Function* (n=1928)	Impaired RV Function** (123)	P	Normal TAPSE (1886)	Abnormal TAPSE (165)	P	Normal RVS’ (1767)	Abnormal RVS’ (284)	P
A. GLOBAL LV PERFUSION
Summed Stress Score	2.7 ± 6.1	6.9 ±8.5	<0.001	2.6 ± 6.0	6.5 ± 8.5	<0.001	2.5 ± 5.8	5.6 ± 8.5	<0.001
(0–3|4–8 |9–13|>13)	1528 (79%)|179 (9%) |88 (5%)|133 (7%)	60 (49%)|23 (19%) |14 (11%)|26 (21%)	<0.001	1502(80%)|172(9%) |85(5%)|127(7%)	86(52%)|30(18%) |17(10%)|32(19%)	<0.001	1420(80%)|155(9%) |79(5%)|113(6%)	168(59%)|47(17%) |23(8%)|46(16%)	<0.001
Summed Rest Score	1.9 ± 5.0	4.4 ± 6.7	<0.001	1.8 ± 4.9	4.4 ± 7.1	<0.001	1.7 ± 4.7	3.9 ± 7.2	<0.001
0–3|4–8 |9–13|>13)	1620 (84%)|160 (8%) |71 (4%)|77 (4%)	75 (61%)|22 (18%) |15 (12%)|11 (9%)	<0.001	1592 (84%)|155 (8%) |65(3%)|74 (4%)	103(62%)|27 (16%) |21 (13%)|14 (9%)	<0.001	1501 (85%)|139 (8%) |65 (4%)|62 (4%)	194(68%)|43 (15%) |21 (7%)|26 (9%)	<0.001
Summed Difference Score	0.8 ± 2.7	2.5 ± 5.3	0.001	0.8 ± 2.7	2.1 ± 4.8	0.001	0.8 ± 2.7	1.8 ± 4.2	<0.001
(0|1–5 |6–10|>10)	1629(85%)|204(11%) |63(3%)|32(2%)	79(64%)|24(20%) |13(11%)|7(6%)	<0.001	1595(85%)|198(11%)| 61(3%)|32(2%)	113(69%)|30(18%) |15(9%)|7(4%)	<0.001	1510(86%)|172(10%) |56(3%)|29(2%)	198(70%)|56(20%) |20 (7%)|10(4%)	<0.001
# Ischemic Segments	0.6± 1.6	1.6± 2.8	<0.001	0.5 ± 1.6	1.3 ± 2.6	<0.001	0.5 ± 1.6	1.2± 2.3	<0.001
# Fixed Segments	0.7 ± 1.8	1.7 ± 2.5	<0.001	0.7 ± 1.8	1.7 ± 2.7	<0.001	0.7± 1.2	1.5 ± 2.6	<0.001
Normal Perfusion	1393 (72%)	50 (41%)	<0.001	1370 (73%)	72 (44%)	<0.001	1298 (74%)	145 (51%)	<0.001
Fully Reversible Defects	113 (6%)	12 (10%)	0.08	110 (6%)	15 (9 %)	0.09	99 (6%)	26 (9%)	0.02
Partially Reversible Defects	236 (12%)	29 (24%)	<0.001	225 (12%)	40 (24%)	<0.001	212(12%)	53 (19%)	0.002
Fixed Defects	186 (10%)	32 (26%)	<0.001	181 (10%)	37 (22%)	<0.001	158 (9%)	50 (21%)	<0.001
B. REGIONAL PERFUSION
Perfusion Defect Severity
Anterior
Summed Stress Score	0.6 ± 2.1	1.3 ± 2.9	0.01	0.6 ± 2.1	1.1 ± 2.7	0.02	0.5 ± 2.0	1.2 ± 3.0	0.001
Summed Rest Score	0.3 ± 1.6	0.8 ± 2.5	0.03	0.3 ± 1.6	0.7 ± 2.3	0.02	0.3 ± 1.4	0.8 ± 2.7	0.003
Summed Difference Score	0.3 ± 1.2	0.5 ± 1.4	0.14	0.3 ± 1.2	0.4 ± 1.2	0.39	0.3 ± 1.2	0.4 ± 1.2	0.06
# Ischemic Segments	0.2 ± 0.7	0.3 ± 0.8	0.13	0.2 ± 0.7	0.2 ± 0.7	0.42	0.2 ± 0.7	0.3 ± 0.8	0.02
# Fixed Segments	0.1 ± 0.6	0.4 ± 1.0	0.009	0.1 ± 0.6	0.3 ± 0.9	0.003	0.1 ± 0.6	0.3 ± 0.9	0.002
Inferior
Summed Stress Score	1.2 ± 2.9	3.0 ± 3.9	<0.001	1.2 ± 2.9	2.9 ± 4.0	<0.001	1.2 ± 2.9	2.4 ± 3.6	<0.001
Summed Rest Score	1.0 ± 2.6	2.3 ± 3.6	<0.001	1.0 ± 2.6	2.3 ± 3.7	<0.001	0.9 ± 2.6	1.9 ± 3.4	<0.001
Summed Difference Score	0.2 ± 1.0	0.7 ± 1.7	0.007	0.2 ± 1.0	0.6 ± 1.5	0.008	0.2 ± 1.0	0.4 ± 1.4	0.009
# Ischemic Segments	0.2 ± 0.7	0.4 ± 1.0	0.005	0.2 ± 0.7	0.4 ± 0.9	0.006	0.2 ± 0.7	0.3 ± 0.8	0.006
# Fixed Segments	0.4 ± 1.0	0.9 ± 1.4	<0.001	0.4 ± 1.0	0.9 ± 1.4	<0.001	0.4 ± 1.0	0.8 ± 1.3	<0.001
Lateral
Summed Stress Score	0.5 ± 2.0	2.0 ± 3.3	<0.001	0.5 ± 2.0	1.8 ± 3.4	<0.001	0.4 ± 1.9	1.4 ± 3.1	<0.001
Summed Rest Score	0.3 ± 1.6	0.7 ± 1.9	0.008	0.3 ± 1.5	0.8 ± 2.3	0.005	0.2 ± 1.5	0.6 ± 2.1	0.004
Summed Difference Score	0.2 ± 1.1	1.2 ± 2.6	<0.001	0.2 ± 1.1	1.0 ± 2.4	<0.001	0.2 ± 1.1	0.8 ± 2.1	<0.001
# Ischemic Segments	0.1 ± 0.6	0.8 ± 1.5	<0.001	0.1 ± 0.6	0.6 ± 1.4	<0.001	0.1 ± 0.6	0.5 ± 1.2	<0.001
# Fixed Segments	0.1 ± 0.5	0.2 ± 0.7	0.01	0.1 ± 0.4	0.3 ± 0.8	0.004	0.1 ± 0.4	0.2 ± 0.7	0.004

^*Defined as both normal TAPSE and S’, via established cutoffs as employed in consensus guidelines (TAPSE ≥1.6 cm, S’≥10 mm/s)¹⁶

^**Defined as both abnormal TAPSE and S’ (TAPSE < 1.6 cm, S’<10 mm/s)