Ma et al reported equations for estimating the depth of the kidneys from the dorsal skin surface.
Parameters:
(1) height in cm
(2) weight in kg
(3) total thickness of the body at the level of the kidneys in cm
right renal depth in cm =
= (0.22 * (thickness)) + (7.714 * (weight) / (height)) - 0.331
left renal depth in cm =
= (0.238 * (thickness)) + (6.553 * (weight) / (height)) - 0.618
