ABC_div_2 v.1
ABC/2 can be used when a patient has intracerebral hemorrhage on CT and a clinician wants a fast and accurate method to estimate its size.
To estimate the volume of intracranial hemorrhage (ICH) from CT measurements.
The volume of ICH can be predicted from the hemorrhage shape, length and width measured from the CT slice with the largest area of the hemorrhages, combined with the number of CT slices covering the hemorrhage area and the CT slice thickness. CT slices counts as follows: ≥75% Area of Hemorrhage = 1 slice 25-75% Area of Hemorrhage = 0.5 slices <25% Area of Hemorrhage = 0 slices The volume of the hemorrhage is calculated as: Volume = A x B x C x Slices / Hemorrhages Shape where A = Length B = Width C = Slice width Hemorrhage shape = 2 (if round or ellipsoid), 3 (otherwise).
Kothari RU, Brott T, Broderick JP, Barsan WG, Sauerbeck LR, Zuccarello M, Khoury J. The ABCs of Measuring Intracerebral Hemorrhage Volumes. Stroke. 1996 Aug;27(8):1304-5. Huttner HB, Steiner T, Hartmann M, Köhrmann M, Juettler E, Mueller S, Wikner J, Meyding-Lamade U, Schramm P, Schwab S, Schellinger PD. Comparison of ABC/2 estimation technique to computer-assisted planimetric analysis in warfarin-related intracerebral parenchymal hemorrhage. Stroke. 2006 Feb;37(2):404-8. Epub 2005 Dec 22.
OBSERVATION.abc2_for_intracerebral_hemorrhage_volume.v0
