Estimating postoperative skull defect volume from CT images using the ABC method

Furen Xiao, I. Jen Chiang, Thomas Mon Hsian Hsieh, Ke Chun Huang, Yi Hsin Tsai, Jau Min Wong, Hsien Wei Ting, Chun Chih Liao

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Objectives: Surgeons often perform decompressive craniectomy to alleviate a medically-refractory increase of intracranial pressure. The frequency of this type of surgery is on the rise. The goal of this study is to develop a simple formula for clinicians to estimate the volume of the skull defect, based on postoperative computed tomography (CT) studies. Methods: We collected thirty sets of postoperative CT images from patients undergoing craniectomy. We measured the skull defect volume by computer-assisted volumetric analysis (Vm) and our own ABC technique (Vabc). We then compared the volumes measured by these two methods. Results: The Vm ranged from 3.2 to 76.4 mL, with a mean of 38.9 mL. The Vabc ranged from 3.8 to 71.5 mL, with a mean of 38.5 mL. The absolute differences between V abc and Vm ranged from 0.05 to 17.5 mL (mean: 3.8 ± 4.2). There was no statistically significant difference between Vabc and Vm (p = 0.961). The correlation coefficient between V abc and Vm was 0.969. In linear regression analysis, the slope was 1.00086 and the intercept was -0.0035 mL (r2 = 0.939). The residual was 5.7 mL. Conclusion: We confirmed that the ABC technique is a simple and accurate method for estimating skull defect volume, and we recommend routine application of this formula for all decompressive craniectomies.

Original languageEnglish
Pages (from-to)205-210
Number of pages6
JournalClinical Neurology and Neurosurgery
Volume114
Issue number3
DOIs
Publication statusPublished - Apr 2012

Fingerprint

Cone-Beam Computed Tomography
Decompressive Craniectomy
Skull
Tomography
Intracranial Hypertension
Linear Models
Regression Analysis

Keywords

  • ABC
  • Craniectomy
  • Skull defects
  • Volume measurement

ASJC Scopus subject areas

  • Clinical Neurology
  • Surgery

Cite this

Xiao, F., Chiang, I. J., Hsieh, T. M. H., Huang, K. C., Tsai, Y. H., Wong, J. M., ... Liao, C. C. (2012). Estimating postoperative skull defect volume from CT images using the ABC method. Clinical Neurology and Neurosurgery, 114(3), 205-210. https://doi.org/10.1016/j.clineuro.2011.10.003

Estimating postoperative skull defect volume from CT images using the ABC method. / Xiao, Furen; Chiang, I. Jen; Hsieh, Thomas Mon Hsian; Huang, Ke Chun; Tsai, Yi Hsin; Wong, Jau Min; Ting, Hsien Wei; Liao, Chun Chih.

In: Clinical Neurology and Neurosurgery, Vol. 114, No. 3, 04.2012, p. 205-210.

Research output: Contribution to journalArticle

Xiao, F, Chiang, IJ, Hsieh, TMH, Huang, KC, Tsai, YH, Wong, JM, Ting, HW & Liao, CC 2012, 'Estimating postoperative skull defect volume from CT images using the ABC method', Clinical Neurology and Neurosurgery, vol. 114, no. 3, pp. 205-210. https://doi.org/10.1016/j.clineuro.2011.10.003
Xiao, Furen ; Chiang, I. Jen ; Hsieh, Thomas Mon Hsian ; Huang, Ke Chun ; Tsai, Yi Hsin ; Wong, Jau Min ; Ting, Hsien Wei ; Liao, Chun Chih. / Estimating postoperative skull defect volume from CT images using the ABC method. In: Clinical Neurology and Neurosurgery. 2012 ; Vol. 114, No. 3. pp. 205-210.
@article{828fb00722904050a338cce6275a1463,
title = "Estimating postoperative skull defect volume from CT images using the ABC method",
abstract = "Objectives: Surgeons often perform decompressive craniectomy to alleviate a medically-refractory increase of intracranial pressure. The frequency of this type of surgery is on the rise. The goal of this study is to develop a simple formula for clinicians to estimate the volume of the skull defect, based on postoperative computed tomography (CT) studies. Methods: We collected thirty sets of postoperative CT images from patients undergoing craniectomy. We measured the skull defect volume by computer-assisted volumetric analysis (Vm) and our own ABC technique (Vabc). We then compared the volumes measured by these two methods. Results: The Vm ranged from 3.2 to 76.4 mL, with a mean of 38.9 mL. The Vabc ranged from 3.8 to 71.5 mL, with a mean of 38.5 mL. The absolute differences between V abc and Vm ranged from 0.05 to 17.5 mL (mean: 3.8 ± 4.2). There was no statistically significant difference between Vabc and Vm (p = 0.961). The correlation coefficient between V abc and Vm was 0.969. In linear regression analysis, the slope was 1.00086 and the intercept was -0.0035 mL (r2 = 0.939). The residual was 5.7 mL. Conclusion: We confirmed that the ABC technique is a simple and accurate method for estimating skull defect volume, and we recommend routine application of this formula for all decompressive craniectomies.",
keywords = "ABC, Craniectomy, Skull defects, Volume measurement",
author = "Furen Xiao and Chiang, {I. Jen} and Hsieh, {Thomas Mon Hsian} and Huang, {Ke Chun} and Tsai, {Yi Hsin} and Wong, {Jau Min} and Ting, {Hsien Wei} and Liao, {Chun Chih}",
year = "2012",
month = "4",
doi = "10.1016/j.clineuro.2011.10.003",
language = "English",
volume = "114",
pages = "205--210",
journal = "Clinical Neurology and Neurosurgery",
issn = "0303-8467",
publisher = "Elsevier",
number = "3",

}

TY - JOUR

T1 - Estimating postoperative skull defect volume from CT images using the ABC method

AU - Xiao, Furen

AU - Chiang, I. Jen

AU - Hsieh, Thomas Mon Hsian

AU - Huang, Ke Chun

AU - Tsai, Yi Hsin

AU - Wong, Jau Min

AU - Ting, Hsien Wei

AU - Liao, Chun Chih

PY - 2012/4

Y1 - 2012/4

N2 - Objectives: Surgeons often perform decompressive craniectomy to alleviate a medically-refractory increase of intracranial pressure. The frequency of this type of surgery is on the rise. The goal of this study is to develop a simple formula for clinicians to estimate the volume of the skull defect, based on postoperative computed tomography (CT) studies. Methods: We collected thirty sets of postoperative CT images from patients undergoing craniectomy. We measured the skull defect volume by computer-assisted volumetric analysis (Vm) and our own ABC technique (Vabc). We then compared the volumes measured by these two methods. Results: The Vm ranged from 3.2 to 76.4 mL, with a mean of 38.9 mL. The Vabc ranged from 3.8 to 71.5 mL, with a mean of 38.5 mL. The absolute differences between V abc and Vm ranged from 0.05 to 17.5 mL (mean: 3.8 ± 4.2). There was no statistically significant difference between Vabc and Vm (p = 0.961). The correlation coefficient between V abc and Vm was 0.969. In linear regression analysis, the slope was 1.00086 and the intercept was -0.0035 mL (r2 = 0.939). The residual was 5.7 mL. Conclusion: We confirmed that the ABC technique is a simple and accurate method for estimating skull defect volume, and we recommend routine application of this formula for all decompressive craniectomies.

AB - Objectives: Surgeons often perform decompressive craniectomy to alleviate a medically-refractory increase of intracranial pressure. The frequency of this type of surgery is on the rise. The goal of this study is to develop a simple formula for clinicians to estimate the volume of the skull defect, based on postoperative computed tomography (CT) studies. Methods: We collected thirty sets of postoperative CT images from patients undergoing craniectomy. We measured the skull defect volume by computer-assisted volumetric analysis (Vm) and our own ABC technique (Vabc). We then compared the volumes measured by these two methods. Results: The Vm ranged from 3.2 to 76.4 mL, with a mean of 38.9 mL. The Vabc ranged from 3.8 to 71.5 mL, with a mean of 38.5 mL. The absolute differences between V abc and Vm ranged from 0.05 to 17.5 mL (mean: 3.8 ± 4.2). There was no statistically significant difference between Vabc and Vm (p = 0.961). The correlation coefficient between V abc and Vm was 0.969. In linear regression analysis, the slope was 1.00086 and the intercept was -0.0035 mL (r2 = 0.939). The residual was 5.7 mL. Conclusion: We confirmed that the ABC technique is a simple and accurate method for estimating skull defect volume, and we recommend routine application of this formula for all decompressive craniectomies.

KW - ABC

KW - Craniectomy

KW - Skull defects

KW - Volume measurement

UR - http://www.scopus.com/inward/record.url?scp=84857781688&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84857781688&partnerID=8YFLogxK

U2 - 10.1016/j.clineuro.2011.10.003

DO - 10.1016/j.clineuro.2011.10.003

M3 - Article

VL - 114

SP - 205

EP - 210

JO - Clinical Neurology and Neurosurgery

JF - Clinical Neurology and Neurosurgery

SN - 0303-8467

IS - 3

ER -