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Table 2 Dynamic contrast enhanced perfusion MRI changes before and after reperfusion

From: Microvessel changes after post-ischemic benign and malignant hyperemia: experimental study in rats

Group n rCBV(%) rMSI(%)
   mean ± SD mean ± SD
Group 1    
   Before 8 86.0 ± 8.2* 110.6 ± 12.4
   3 h 8 141.5 ± 22.3 80.7 ± 19.1
   10 d 8 102.8 ± 11.3 109.0 ± 6.2**
Group 2    
   Before 14 46.2 ± 16.9* 69.7 ± 30.1
   3 h 8 88.3 ± 13.8 74.8 ± 19.9
   10 d 8 78.3 ± 9.3 75.0 ± 19.5
Group 3    
   Before 14 46.2 ± 16.9* 69.7 ± 30.1
   3 h 6 127.8 ± 13.6 82.5 ± 30.7
   10 d 6 173.5 ± 45.2 51.8 ± 10.9**
Group 4    
   Before 6 23.6 ± 16.8* 59.4 ± 27.5
   3 h 6 103.4 ± 26.6 64.1 ± 28.9
   10 d 6 80.0 ± 28.6 76.0 ± 24.3
  1. rCBV = relative cerebral blood volume; rMSI = relative maximum slope of increase; before = before reperfusion; 3 h = three hours after reperfusion; 10 d = ten days after reperfusion.
  2. *Significant difference (P < 0.5) among the different groups before reperfusion.
  3. **Significant difference (P < 0.5) between group 1 and group 3 ten days after reperfusion.