ABC-ICH-Calc is a simple calculator for intracerebral hemorrhage (ICH) volumes This uses a simplified ellipsoid mathematical equation, where A and B are the largest visual ICH on slices of the CT scan.
C is the vertical number of slices multiplied by slice thickness. It is easiest to enter all of these in milimeters (mm) for example 50mm for A, and 40mm for B, then 30mm for C. The equation uses the slice thickness to generate the cubic mililiters (ml)