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Table 1 In vivo measurements of rat heart morphology and function before and at 2, 8 and 42 days after infarction (n = 27)

From: First-pass perfusion CMR two days after infarction predicts severity of functional impairment six weeks later in the rat heart

  Pre 2 days 8 days 42 days
Left ventricular mass (mg) 492 ± 35 543 ± 18* 571 ± 15* 586 ± 16*#
End diastolic volume (μl) 265 ± 12 282 ± 11 395 ± 15*# 428 ± 24*#+
End systolic volume (μl) 55 ± 8 108 ± 5* 154 ± 13*# 185 ± 19*#+
Stroke volume (μl) 210 ± 9 174 ± 8* 241 ± 7# 243 ± 11#
Ejection fraction (%) 80 ± 2 62 ± 1* 62 ± 2* 58 ± 2*#+
Akinetic myocardium (mm2) - 16 ± 4* 23 ± 5*# 28 ± 6*#+
Akinetic myocardium (%) - 9 ± 2* 10 ± 2* 11 ± 2*
Heart rate (bpm) 404 ± 11 361 ± 9 344 ± 27 346 ± 26
Cardiac output (ml/min) 85 ± 5 61 ± 3* 83 ± 3# 80 ± 3#
Weight (g) 234 ± 11 214 ± 3 230 ± 5 245 ± 19
  1. * p < 0.05 compared with pre-infarction. #p < 0.05 compared with 2 days. + p < 0.05 compared with 8 days,