Table 1 Mapping analysis after myocardial ischemia.

From: Cardiac MRI of differing ischemia and reperfusion times in a myocardial infarction pig model

Group

Parameter

T1

T2

All animals

Remote

1235 ± 52 ms

 

38.7 ± 2.1 ms

 

Ischemic

1326 ± 76 ms

 

41.8 ± 4.4 ms

 

ΔT = ischemic − remote

91 ± 63 ms

p = 0.001

3.1 ± 4.5 ms

p = 0.019

Correlation: ischemia duration & ΔT

r = 0.73

 

r = 0.43

 

ΔT (short ischemia)

64 ± 34 ms

p = 0.024

1.9 ± 4.0 ms

p = 0.19

ΔT (long ischemia)

189 ± 41 ms

p = 0.001

8.3 ± 1.6 ms

p = 0.026

ΔT (long ischemia ) − ΔT (short ischemia)

125 ms

p = 0.0001

6.4 ms

p = 0.021

Animals with CMR three days post ischemia

ΔT

142 ± 76 ms

p = 0.001

4.4 ± 5.5 ms

p = 0.73

Correlation: ischemia duration & ΔT

r = 0.76

 

r = 0.73

 

ΔT (long ischemia)ΔT (short ischemia)

125 ms

p = 0.2

9.7 ms

p = 0.2

  1. ΔT = difference in mean T1/2 between ischemic and remote myocardium, long ischemia = animals with 60–90 min of ischemia, short ischemia = animals with 30–45 min of ischemia.