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Table 1 MR derived measurements of signal intensity (SI) and perfusion values

From: Hyperemic stress myocardial perfusion cardiovascular magnetic resonance in mice at 3 Tesla: initial experience and validation against microspheres

N Scan AIF SI baseline AIF SI max Enhancement ratio LV SI baseline LV SI max Enhancement ratio MBF/ml/g/min MPR
1 stress* 115 ± 24 2220 ± 412 18.30 81 ± 20 945 ± 210 10.67 9.2 2.71
  rest 113 ± 27 2199 ± 460 18.46 116 ± 26 650 ± 144 4.60 3.4  
2 stress 170 ± 36 1780 ± 330 9.47 146 ± 29 1021 ± 243 5.99 8.7 2.12
  rest* 159 ± 29 1602 ± 313 9.08 111 ± 22 440 ± 97 2.96 4.1  
3 stress* 83 ± 18 1690 ± 331 19.36 66 ± 15 580 ± 106 7.79 12.5 2.98
  rest 138 ± 26 1637 ± 362 10.86 125 ± 26 490 ± 99 2.92 4.2  
4 stress 137 ± 35 1777 ± 367 11.97 100 ± 23 704 ± 142 6.04 6.2 1.59
  rest* 97 ± 26 1616 ± 369 15.66 122 ± 27 520 ± 102 3.26 3.9  
5 stress* 84 ± 19 1804 ± 391 20.48 64 ± 16 684 ± 121 9.69 11.6 2.42
  rest 138 ± 22 1832 ± 393 12.28 125 ± 23 489 ± 94 2.91 4.8  
Mean Stress 118 ± 37 1854 ± 209 15.92 ± 4.89 91 ± 34 787 ± 187 8.04 ± 2.12 9.64 ± 2.5 2.36 ± 0.54
Mean Rest 129 ± 24 1777 ± 254 13.27 ± 3.78 120 ± 6 518 ± 79 3.33 ± 0.72 4.08 ± 0.5  
  1. * denotes which scan was performed first.
  2. LV Left ventricle.
  3. AIF Arterial input function.
  4. MBF Myocardial blood flow.
  5. MPR Myocardial perfusion reserve.
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