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


A2C Area (cm2):            
A4C Area (cm2):            
Length (cm):                  
Height:                           
Weight:                          

LAV / BSA:




LAV/BSA Ranges (mL/m2):
Normal                          16-34
Mildly Enlarged            35-41
Moderately Enlarged     42-48
Severely Enlarged          >48

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References: