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Stroke. 1996 Aug;27(8):1304-5.

The ABCs of measuring intracerebral hemorrhage volumes.

Author information

1
Department of Emergency Medicine, University of Cincinnati, Ohio 45267-0769, USA. Rashmikant.Kothari@uc.edu

Abstract

BACKGROUND AND PURPOSE:

Hemorrhage volume is a powerful predictor of 30-day mortality after spontaneous intracerebral hemorrhage (ICH). We compared a bedside method of measuring CT ICH volume with measurements made by computer-assisted planimetric image analysis.

METHODS:

The formula ABC/2 was used, where A is the greatest hemorrhage diameter by CT, B is the diameter 90 degrees to A, and C is the approximate number of CT slices with hemorrhage multiplied by the slice thickness.

RESULTS:

The ICH volumes for 118 patients were evaluated in a mean of 38 seconds and correlated with planimetric measurements (R2 = 9.6). Interrater and intrarater reliability were excellent, with an intraclass correlation of .99 for both.

CONCLUSIONS:

We conclude that ICH volume can be accurately estimated in less than 1 minute with the simple formula ABC/2.

PMID:
8711791
[Indexed for MEDLINE]

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