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Table 1 Right and left atrial dynamics

From: Quantification of atrial dynamics using cardiovascular magnetic resonance: inter-study reproducibility

   Left atrium Right atrium
   Exam A Exam B Exam C P value a Exam A Exam B Exam C P value a
Atrial function Volumetric index (%)         
Reservoir; global EF Total 66.3 ± 7.5 64.8 ± 5.8 68.8 ± 8.4 0.09 55.0 ± 9.6 54.5 ± 9.6 54.4 ± 6.3 0.68
Conduit EF Passive 45.8 ± 7.5 45.2 ± 7.7 46.7 ± 9.8 0.62 34.2 ± 8.6 32.2 ± 8.3 30.9 ± 5.6 0.16
Booster pump EF Booster 38.3 ± 7.5 35.6 ± 7.9 41.9 ± 7.6 0.40 32.4 ± 8.5 33.3 ± 9.1 34.0 ± 7.6 0.26
  Strain (%)         
Reservoir εs 31.8 ± 5.4 31.5 ± 5.3 31.3 ± 4.8 0.16 34.0 ± 9.5 34.6 ± 7.9 33.9 ± 6.7 0.41
Conduit εe 24.2 ± 5.6 23.7 ± 5.2 23.3 ± 4.9 0.16 22.2 ± 6.8 22.8 ± 5.3 22.6 ± 4.4 0.78
Booster pump εa 7.6 ± 3.1 7.7 ± 3.0 7.9 ± 2.7 0.77 11.8 ± 4.4 11.8 ± 4.4 11.3 ± 4.0 0.40
  Strain Rate (s −1 )         
Reservoir SRs 1.2 ± 0.2 1.2 ± 0.3 1.3 ± 0.3 0.91 1.3 ± 0.4 1.3 ± 0.3 1.4 ± 0.5 0.67
Conduit SRe −1.6 ± 0.4 −1.4 ± 0.3 −1.4 ± 0.3 0.06 −0.9 ± 0.3 −0.9 ± 0.3 −1.1 ± 0.4 0.18
Booster pump SRa −0.9 ± 0.4 −0.9 ± 0.4 −1.0 ± 0.4 0.56 −1.2 ± 0.7 −1.1 ± 0.6 −1.2 ± 0.7 0.98
  Atrial volume (ml)         
  Maximum 66.0 ± 16.2 67.0 ± 15.4 64.9 ± 17.8 0.55 80.0 ± 23.1 80.9 ± 24.3 78.7 ± 23.1 0.79
  Minimum 22.6 ± 8.6 23.8 ± 7.6 21.2 ± 11.1 0.03b 37.1 ± 15.5 37.9 ± 16.3 36.5 ± 13.2 0.68
  Prior to atrial contraction 36.1 ± 11.4 36.9 ± 10.7 35.8 ± 15.8 0.46 53.7 ± 19.8 55.6 ± 21.2 54.4 ± 17.0 0.42
  1. Comparison of left and right atrial functional parameters between the repeated measurements. Values are given as mean ± standard deviation.
  2. a as derived from one-way ANOVA for repeated measures across the Exams A, B and C.
  3. b Significance between Exam A and Exam B (p = 0.03), as derived from one-way ANOVA for repeated measures with Bonferroni post hoc testing.
  4. ε, strain; SR, strain rate; EF, emptying fraction.