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Table 2 Mitral valve areas at intra- & post-operative different techniques

From: Determination of mitral valve area with echocardiography, using intra-operative 3-dimensional versus intra- & post-operative pressure half-time technique in mitral valve repair surgery

  MVA-PHT (cm2) MVA-3D (cm2) MVA-TTE (cm2)
Recorded data 2.51 ± 0.71 (2.23–2.80) 2.91 ± 0.65* (2.65–3.17) 2.40 ± 0.59 (2.16–2.63)
Observer A 2.54 ± 0.67 (2.27–2.81) 3.00 ± 0.63* (2.75–3.25)  
Observer B 2.62 ± 0.98 (2.22–3.02) 2.97 ± 0.88* (2.61–3.33)  
  1. Values are expressed as mean ± SD (95% confidence interval).
  2. *: p < 0.05, vs. MVA-TTE.
  3. Abbreviations: MVA, mitral valve area; PHT, pressure half-time technique using transoesophageal echocardiography at intra-operative post-mitral valve repair surgery period; 3D, 3 dimensional planimetry technique using transoesophageal echocardiography at intra-operative post-mitral valve repair surgery period; TTE, pressure half-time technique using transthoracic echocardiography at post-operative day 7.