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Excellent accuracy of ABC/2 volume formula compared to computer-assisted volumetric analysis of subdural hematomas

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Listed:
  • Sae-Yeon Won
  • Andrea Zagorcic
  • Daniel Dubinski
  • Johanna Quick-Weller
  • Eva Herrmann
  • Volker Seifert
  • Juergen Konczalla

Abstract

Background: Subdural hematoma (SDH) is a common disease associated with high morbidity, which is becoming more prominent due to the increasing incidence. Decision for a surgical evacuation is made depending on the clinical appearance and the volume of SDH, wherefore it is important to have a simple ‘bedside’ method to measure and compare the volume of SDH. Objective: The aim of the study was to verify the accuracy of the simplified ABC/2 volumetric formula to determine a valuable tool for the clinical practice. Methods: Preoperative CT-scans of 83 patients with SDHs were used for the computer-assisted volumetric measurement via BrainLab® as well as the ABC/2 volumetric measurement. A = largest length (anterior to posterior) of the SDH; B = maximum width (lateral to midline) 90° to A; C = maximum height (coronal plane or multiplication of slices) of the hematoma. These measurements were performed by two independent clinicians in a blinded fashion. Both volumes were compared by linear regression analysis of Pearson and Bland-Altman regression analysis. Results: Among 100 SDHs, 53% were under an 47% were over 100cm3 showing a well distribution of the hematoma sizes. There was an excellent correlation between computer-assisted volumetric measurement and ABC/2 (R2 = 0.947, p

Suggested Citation

  • Sae-Yeon Won & Andrea Zagorcic & Daniel Dubinski & Johanna Quick-Weller & Eva Herrmann & Volker Seifert & Juergen Konczalla, 2018. "Excellent accuracy of ABC/2 volume formula compared to computer-assisted volumetric analysis of subdural hematomas," PLOS ONE, Public Library of Science, vol. 13(6), pages 1-6, June.
    • Handle: RePEc:plo:pone00:0199809
    DOI: 10.1371/journal.pone.0199809
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