Skip to main content

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)