Description

Johnson et al reviewed equations for the calculation of liver volume and proposed several. The authors are from the University of Sheffield, Sheffield Children's Hospital and Royal Hallamshire Hospital in England.


Parameters:

(1) body surface area in square meters using the method of Dubois and Dubois

(2) age in years

(3) race (Japanese, North American/North European)

(4) weight in kilograms

(5) method of measurement (radiographic or ultrasonic)

 

liver volume in mL = equation 1a =

= 1000 * ((0.728 * (BSA)) - 0.035)

 

liver volume in mL = equation 2a =

= 1000 * (0.722 * ((BSA)^1.176))

 

liver volume in mL = equation 1b

= 1000 * ((0.98 * (BSA)) - 0.088 + (0.017 * (age)) - (0.036 if North American/European) - (0.072 for radiographic or ultrasonic method))

 

liver volume in mL = equation 2b =

= 1000 * ((0.0437 * ((weight)^0.9)) * (1.19 if Japanese) * (0.92 if radiographic or ultrasonic))

 

liver volume in mL = equation 3 =

= 1000 * (((SQRT(BSA) * 0.72) + 1.71)^3)

 

The authors recommend using equation 2a for a patient <= 18 years and equation 3 for a patient > 18 years of age.


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