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Table 4 Mean perfusion values based on microspheres and CMR for both field strengths for microsphere perfusion values ≥ 2

From: Quantitative assessment of magnetic resonance derived myocardial perfusion measurements using advanced techniques: microsphere validation in an explanted pig heart system

Field strength Modality Mean [ml/min/g] Mean difference and CI (95%) of the difference p-value
1.5 Tesla Microspheres 3.36 ± 1.11   
Fermi 3.16 ± 1 0.2 ± 0.85 ( 0.74-0.33) 0.42
ARMA 2.2 ± 0.5 1.18 ± 1.02 ( 1.84-( 0.53)) 0.02
Exponential 2.93 ± 0.61 0.43 ± 0.81 ( 0.94-0.08) 0.91
B-spline 3.59 ± 1.5 0.23 ± 1.84 ( 0.94-1.4) 0.67
3 Tesla Microspheres 2.57 ± 0.46   
Fermi 2.51 ± 0.57 0.07 ± 0.52 ( 0.5-0.37) 0.72
ARMA 3.03 ± 1 0.46 ± 0.91 ( 0.31-1.22) 0.2
Exponential 2.4 ± 0.88 0.17 ± 0.68 ( 0.74-0.4) 0.5
B-spline 3.34 ± 0.94 0.77 ± 0.78 (0.12-1.42) 0.03
  1. Data is presented as mean ± standard deviation (SD) along with p-values indicating statistical significance based on the paired t-test. (CI)- Confidence Intervals; (CMR)- cardiovascular magnetic resonance.