TABLE 1

Physiologic Parameters of Pigs at Time of PET

Parameter	Group A (control, n = 7)	Group B (old MI, n = 7)
Body weight (kg)	26 ± 2.4	41 ± 8.2
Heart rate (beats·min⁻¹)	72 ± 22.4 (82 ± 21.4^*)	52 ± 6.3^† (53 ± 9.2)
Systolic blood pressure (mm Hg)	131 ± 22.1 (95 ± 22.4^‡)	111 ± 18.3^† (97 ± 15.0^*)
Diastolic blood pressure (mm Hg)	92 ± 19.3 (49 ± 16.7^‡)	74 ± 13.6^† (57 ± 11.9^‡)
Rate pressure product (mm Hg·min⁻¹)	9,567 ± 3,616 (5,657 ± 3201^‡)	5,732 ± 1,151^† (4,445 ± 948^*)
Wall thickness (posterior–lateral wall) (cm)	1.2 ± 0.1	1.6 ± 0.1^‡
End-diastolic LV volume (mL)	41.7 ± 11.5	52.73 ± 10.2^†
End-systolic LV volume (mL)	15.2 ± 9.4	31.4 ± 9.2^*
LV ejection fraction (%)	66.0 ± 16.2	39.7 ± 16.9^*
Hemoglobin concentration (g/dL)	13 ± 1.5	12 ± 0.9
Saturation of arterial O₂ (%)	99 ± 1.0	99 ± 0.6
pCO₂ (mm Hg)	39 ± 2.7	41 ± 2.8
pO₂ (mm Hg)	125 ± 20.1	141 ± 11.4

↵* P < 0.01.
↵† P < 0.05.
↵‡ P < 0.001.
Data are mean ± SD. Values in parentheses are from administration of maximum dose of adenosine.