Indices of Cardiac 123I-MIBG Uptake and Left Ventricular Function at Rest and NE and Exercise Variables at Peak Exercise
| Subject no. | Resting state | Exercise | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| H/M | WR (%) | LVEF (%) | LVEDVI (mL/m2) | NEA (pg/mL) | NECS−A (pg/mL) | Absolute value of r | Peak HR (bpm) | Peak CI (L/min/m2) | Peak Vo2 (mL/kg/min) | |||||||||||
| I | D | |||||||||||||||||||
| 1 | 1.76 | 1.72 | 38.4 | 59 | 70 | 970 | 592 | 0.99 | 151 | 7.6 | 16.6 | |||||||||
| 2 | 1.42 | 1.33 | 38.6 | 46 | 225 | 910 | −155 | 0.97 | 138 | 13.5 | 30.9 | |||||||||
| 3 | 1.45 | 1.52 | 18.4 | 56 | 82 | 666 | 606 | 0.99 | 150 | 6.2 | 18.2 | |||||||||
| 4 | 1.09 | 1.09 | 30.3 | 28 | 111 | 522 | −193 | 0.95 | 123 | 4.9 | 11.1 | |||||||||
| 5 | 1.37 | 1.24 | 51.3 | 28 | 180 | 420 | 105 | 0.79 | 137 | 5.5 | 13.7 | |||||||||
| 6 | 1.25 | 1.34 | 3.3 | 47 | 134 | 435 | 74 | 0.73 | 153 | 10.1 | 17.7 | |||||||||
| 7 | 1.17 | 1.19 | 28.3 | 41 | 119 | 347 | 73 | 0.69 | 129 | 7.2 | 16.4 | |||||||||
| 8 | 1.38 | 1.37 | 31.6 | 47 | 161 | 426 | 345 | 0.68 | 144 | 4.9 | 18.6 | |||||||||
| 9 | 1.35 | 1.00 | NC | 88 | 62 | 686 | −27 | 0.61 | 123 | 5.8 | 21.5 | |||||||||
| 10 | 1.18 | 1.20 | 29.0 | 30 | 243 | 702 | 161 | 0.88 | 148 | 4.4 | 17.8 | |||||||||
| 11 | 1.38 | 1.34 | 31.0 | 51 | 66 | 532 | 122 | 0.98 | 130 | 5.1 | 12.2 | |||||||||
| 12 | 1.27 | 1.29 | 30.0 | 41 | 159 | 706 | 99 | 0.84 | 143 | 6.5 | 17.5 | |||||||||
| Mean | 1.35 | 1.30 | 30.0 | 47 | 134 | 609 | 150 | 0.84 | 139 | 6.8 | 17.7 | |||||||||
| SD | 0.18 | 0.19 | 12.1 | 16 | 61 | 197 | 252 | 0.13 | 11 | 2.6 | 5.1 | |||||||||
I = initial image; D = delayed image; WR = washout ratio; LVEDVI = left ventricular end-diastolic volume index; NEA = aortic NE concentration at peak exercise; NECS−A = coronary sinus − arterial difference of NE concentration at peak exercise; absolute value of r = correlation coefficient of linear regression line of relationship between NECCS−A and NEA; peak HR, CI, and Vo2 = heart rate, cardiac index, and oxygen consumption at peak exercise; NC = not calculated.