Left Atrial Volume
(Last Updated - 4/25/2015)
-Based on the following equation:
LAV (mL) = [8/(3 * pi)] * [(A1 * A2) / Length]
Where:
A1 = A2C Area,
A2 = A4C Area and
L = Length (shorter measure A2C or A4C - back wall to mitral annulus)
Then index the LAV to the BSA
LAV/BSA Ranges (mL/m2):
Normal 16-34
Mildly Enlarged 35-41
Moderately Enlarged 42-48
Severely Enlarged >48
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