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. Author manuscript; available in PMC: 2014 Sep 5.
Published in final edited form as: Circ Cardiovasc Imaging. 2009 May 11;2(4):282–289. doi: 10.1161/CIRCIMAGING.108.826602

Table 3.

Reference Equations for Selected LA Parameters

Predicted Value Interval
width of
Normal 1 		R2
PLAX
women 3.82 + 0.015 age – 0.051 height(in) + 0.0085 weight(lb)
3.82 + 0.015 age – 1.995 height(m) + 0.019 weight(kg)		 0.86 0.16
men 1.79 + 0.024 age – 0.028 height(in) + 0.0095 weight(lb)
1.79 + 0.024 age – 1.095 height(m) + 0.021 weight(kg)		 0.82 0.15
LASI
women 4.95 + 0.0006 age – 0.030 height(in) + 0.0105 weight(lb)
4.95 + 0.0006 age – 1.198 height(m) + 0.023 weight(kg)		 0.95 0.17
men 4.01 + 0.035 age – 0.059 height(in) + 0.012 weight(lb)
4.01 + 0.035 age – 2.33 height(m) + 0.27 weight(kg)		 1.30 0.14
LAV
women 47.7 + 0.150 age – 1.02 height(in) + 0.223 weight(lb)
47.7 + 0.150 age – 40.20 height(m) + 0.492 weight(kg)		 15.1 0.28
men −20.6 + 0.524 × age – 0.32 height(in) + 0.195 weight(lb)
−20.6 + 0.524 × age –12.60height(M) + 0.431 weight(kg)		 20.6 0.18
1

Value to add to the predicted value to reach the upper limit of the normal range.