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. Author manuscript; available in PMC: 2013 Nov 9.
Published in final edited form as: J Cardiothorac Vasc Anesth. 2013 May 30;27(4):10.1053/j.jvca.2012.12.014. doi: 10.1053/j.jvca.2012.12.014

Table 5.

MATLAB versus QLab Data

MATLAB QLab p Value
SL diameter (cm) 3.53 ± 0.60 3.46 ± 0.72 0.55
AP diameter (cm) 3.63 ± 0.59 3.33 ± 0.70 0.050
Calculated area (cm2) 10.28 ± 3.11 8.67 ± 2.77 0.0069

NOTE. Areas calculated by area for ellipse in MATLAB and planimetry in QLab.