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69. Jahrestagung der Deutschen Gesellschaft für Neurochirurgie (DGNC)
Joint Meeting mit der Mexikanischen und Kolumbianischen Gesellschaft für Neurochirurgie

Deutsche Gesellschaft für Neurochirurgie (DGNC) e. V.

03.06. - 06.06.2018, Münster

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

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  • Sae-Yeon Won - Universitätsklinikum Frankfurt, Klinik für Neurochirurgie, Frankfurt am Main, Deutschland
  • Andrea Zagorcic - Universitätsklinikum Frankfurt, Klinik für Neurochirurgie, Frankfurt am Main, Deutschland
  • Daniel Dubinski - Universitätsklinikum Frankfurt, Klinik für Neurochirurgie, Frankfurt am Main, Deutschland
  • Johanna Quick-Weller - Universitätsklinikum Frankfurt, Klinik für Neurochirurgie, Frankfurt am Main, Deutschland
  • Eva Herrmann - Universitätsklinikum Frankfurt, Klinik für Neurochirurgie, Frankfurt am Main, Deutschland
  • Volker Seifert - Universitätsklinikum Frankfurt, Klinik für Neurochirurgie, Frankfurt am Main, Deutschland
  • Jürgen Konczalla - Universitätsklinikum Frankfurt, Klinik für Neurochirurgie, Frankfurt am Main, Deutschland

Deutsche Gesellschaft für Neurochirurgie. 69. Jahrestagung der Deutschen Gesellschaft für Neurochirurgie (DGNC), Joint Meeting mit der Mexikanischen und Kolumbianischen Gesellschaft für Neurochirurgie. Münster, 03.-06.06.2018. Düsseldorf: German Medical Science GMS Publishing House; 2018. DocV116

doi: 10.3205/18dgnc117, urn:nbn:de:0183-18dgnc1179

Published: June 18, 2018

© 2018 Won et al.
This is an Open Access article distributed under the terms of the Creative Commons Attribution 4.0 License. See license information at http://creativecommons.org/licenses/by/4.0/.

Outline

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Objective: Subdural hematoma (SDH) is a common disease with increasing incidence and associated high morbidity. Surgical evacuation depends on the clinical appearance and the volume of SDH, so that it is important to have a simple "bedside" method to measure the volume of SDH. 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: A prospective study was performed by analyzing 100 patients with SDH. Preoperative CT-scans were used for the computer-assisted volumetric measurement via BrainLab® and the ABC/2 volumetric measurement. 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: In a series of 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<0.0001) and no undesirable deviation and trend were detected (p=0.101;p=0.777). A 95% tolerance region of the ratios of both methods was [0.805,1.201].

Conclusion: The ABC/2 method is a simple and fast bedside formula for the measurement of SDH volume in a timely manner without limited access through simple adaption.