### 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° 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 (R ^{2}= .96). Interrater and intrarater reliability were excel lent, 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.

Original language | English (US) |
---|---|

Pages (from-to) | 1304-1305 |

Number of pages | 2 |

Journal | Stroke |

Volume | 27 |

Issue number | 8 |

State | Published - Aug 1996 |

Externally published | Yes |

### Fingerprint

### Keywords

- blood volume
- computed tomography
- intracerebral hemorrhage

### ASJC Scopus subject areas

- Cardiology and Cardiovascular Medicine
- Neuroscience(all)

### Cite this

*Stroke*,

*27*(8), 1304-1305.

**The ABCs of measuring intracerebral hemorrhage volumes.** / Kothari, Rashmi U.; Brott, Thomas G; Broderick, Joseph P.; Barsan, William G.; Sauerbeck, Laura R.; Zuccarello, Mario; Khoury, Jane.

Research output: Contribution to journal › Article

*Stroke*, vol. 27, no. 8, pp. 1304-1305.

}

TY - JOUR

T1 - The ABCs of measuring intracerebral hemorrhage volumes

AU - Kothari, Rashmi U.

AU - Brott, Thomas G

AU - Broderick, Joseph P.

AU - Barsan, William G.

AU - Sauerbeck, Laura R.

AU - Zuccarello, Mario

AU - Khoury, Jane

PY - 1996/8

Y1 - 1996/8

N2 - 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° 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 (R 2= .96). Interrater and intrarater reliability were excel lent, 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.

AB - 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° 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 (R 2= .96). Interrater and intrarater reliability were excel lent, 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.

KW - blood volume

KW - computed tomography

KW - intracerebral hemorrhage

UR - http://www.scopus.com/inward/record.url?scp=0029826845&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0029826845&partnerID=8YFLogxK

M3 - Article

VL - 27

SP - 1304

EP - 1305

JO - Stroke

JF - Stroke

SN - 0039-2499

IS - 8

ER -