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Table 2 Semiquantitative perfusion parameters

From: Evaluation of contrast wash-in and peak enhancement in adenosine first pass perfusion CMR in patients post bypass surgery

  

Relative SImax (%)

Relative Upslope (%)

T50%SImax (seconds)

T50%SImax (beats)

TSIMax (seconds)

TSIMax (beats)

native/aCABG (n = 46)

native

22.8 ± 8.2

18.3 ± 6.3

7.2 ± 1.9

9.4 ± 2.4

12.6 ± 3.0

16.3 ± 3.5

 

CABG

22.9 ± 8.5

18.0 ± 6.5

7.5 ± 1.9*

9.6 ± 2.4*

13.1 ± 3.0*

16.8 ± 3.7*

native/LIMA (n = 20)

native

22.9 ± 8.7

18.2 ± 6.7

7.1 ± 2.0

8.9 ± 2.5

12.4 ± 3.1

15.7 ± 3.6

 

LIMA

23.7 ± 10.6

18.0 ± 7.8

7.3 ± 1.9*

9.3 ± 2.3*

13.1 ± 3.0*

16.5 ± 3.4*

native/vCABG (n = 26)

native

22.6 ± 8.0

18.3 ± 6.1

7.4 ± 1.8

9.7 ± 2.4

12.8 ± 2.9

16.7 ± 3.4

 

CABG

22.3 ± 6.6

18.0 ± 5.6

7.6 ± 2.0*

9.9 ± 2.5*

13.0 ±3.1

17.1 ± 3.9

LIMA/vCABG (n = 21)

LIMA

21.9 ± 9.4

17.4 ± 7.4

7.6 ± 1.8

10.2 ± 2.4

13.2 ± 2.9

17.7 ± 3.3

 

CABG

20.1 ± 8.2

16.3 ± 6.3

7.4 ± 2.2

9.9 ± 2.6

12.5 ± 3.2*

16.8 ± 3.3*

No CAD

       

native/native (n = 20)

LAD

31.7 ± 10.9

22.9 ± 4.7

5.7 ± 1.1*

7.6 ± 2.3*

11.1 ± 1.9*

14.4 ± 5.9*

 

LCX

27.4 ± 9.2*

19.4 ± 4.2*

6.2 ± 1.2

8.3 ± 2.6

11.6 ± 2.1

15.0 ± 6.1

 

RCA

32.8 ± 11.1

22.7 ± 5.0

6.1 ± 1.1

8.2 ± 2.5

11.6 ± 1.9

15.0 ± 6.0

  1. * = p < 0.05; vCABG = venous CABG; aCABG = all CABG (LIMA and venous CABG)