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ABC/2 formula for “bedside” postoperative pneumocephalus volume measurement

BACKGROUND: Postoperative pneumocephalus is associated with a higher risk of recurrence of chronic subdural hematoma (cSDH). However, there is no verified simple way to measure the pneumocephalus volume at the bedside for daily clinical use. The ABC/2 method was shown to be a simple and reliable tec...

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Autores principales: Chan, David Yuen Chung, Cheung, Eric Yuk Hong, Hui, Ka Ho, Leung, Cecelia Mei Sze, Ng, Stephanie Chi Ping, Mak, Wai Kit, Wong, George Kwok Chu, Chan, Tat Ming Danny, Poon, Wai Sang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9347102/
https://www.ncbi.nlm.nih.gov/pubmed/35922864
http://dx.doi.org/10.1186/s41016-022-00287-z
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author Chan, David Yuen Chung
Cheung, Eric Yuk Hong
Hui, Ka Ho
Leung, Cecelia Mei Sze
Ng, Stephanie Chi Ping
Mak, Wai Kit
Wong, George Kwok Chu
Chan, Tat Ming Danny
Poon, Wai Sang
author_facet Chan, David Yuen Chung
Cheung, Eric Yuk Hong
Hui, Ka Ho
Leung, Cecelia Mei Sze
Ng, Stephanie Chi Ping
Mak, Wai Kit
Wong, George Kwok Chu
Chan, Tat Ming Danny
Poon, Wai Sang
author_sort Chan, David Yuen Chung
collection PubMed
description BACKGROUND: Postoperative pneumocephalus is associated with a higher risk of recurrence of chronic subdural hematoma (cSDH). However, there is no verified simple way to measure the pneumocephalus volume at the bedside for daily clinical use. The ABC/2 method was shown to be a simple and reliable technique to estimate volumes of intracranial lesions, such as intracranial hematomas. This study aims to evaluate the accuracy of the ABC/2 formula in estimating volumes of pneumocephalus, as compared to the gold standard with computer-assisted volumetric analysis. METHODS: A total of 141 postoperative computed tomographic (CT) brain scans of cSDH patients with burr-hole drainage were analysed. Pneumocephalus volume was measured independently by both the ABC/2 formula and the computer-assisted volumetric measurement. For the computer-assisted measurement, the volume of the air was semiautomatically segmented and calculated by computer software. Linear regression was used to determine the correlation between the ABC/2 method and computer-assisted measurement. RESULTS: The postoperative pneumocephalus volume after bilateral burr-hole drainage was significantly larger than that of unilateral burr-hole drainage (29.34 ml versus 12.21 ml, p < 0.001). The estimated volumes by the formula ABC/2 significantly correlated to the volumes as measured by the computer-assisted volumetric technique, with r = 0.992 (p < 0.001). The Pearson correlation coefficient is very close to 1, which signifies a very strong positive correlation, and it is statistically significant. CONCLUSIONS: An excellent correlation is observed between the ABC/2 method and the computer-assisted measurement. This study verified that the ABC/2 method is an accurate and simple “bedside” technique to estimate pneumocephalus volume.
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spelling pubmed-93471022022-08-04 ABC/2 formula for “bedside” postoperative pneumocephalus volume measurement Chan, David Yuen Chung Cheung, Eric Yuk Hong Hui, Ka Ho Leung, Cecelia Mei Sze Ng, Stephanie Chi Ping Mak, Wai Kit Wong, George Kwok Chu Chan, Tat Ming Danny Poon, Wai Sang Chin Neurosurg J Research BACKGROUND: Postoperative pneumocephalus is associated with a higher risk of recurrence of chronic subdural hematoma (cSDH). However, there is no verified simple way to measure the pneumocephalus volume at the bedside for daily clinical use. The ABC/2 method was shown to be a simple and reliable technique to estimate volumes of intracranial lesions, such as intracranial hematomas. This study aims to evaluate the accuracy of the ABC/2 formula in estimating volumes of pneumocephalus, as compared to the gold standard with computer-assisted volumetric analysis. METHODS: A total of 141 postoperative computed tomographic (CT) brain scans of cSDH patients with burr-hole drainage were analysed. Pneumocephalus volume was measured independently by both the ABC/2 formula and the computer-assisted volumetric measurement. For the computer-assisted measurement, the volume of the air was semiautomatically segmented and calculated by computer software. Linear regression was used to determine the correlation between the ABC/2 method and computer-assisted measurement. RESULTS: The postoperative pneumocephalus volume after bilateral burr-hole drainage was significantly larger than that of unilateral burr-hole drainage (29.34 ml versus 12.21 ml, p < 0.001). The estimated volumes by the formula ABC/2 significantly correlated to the volumes as measured by the computer-assisted volumetric technique, with r = 0.992 (p < 0.001). The Pearson correlation coefficient is very close to 1, which signifies a very strong positive correlation, and it is statistically significant. CONCLUSIONS: An excellent correlation is observed between the ABC/2 method and the computer-assisted measurement. This study verified that the ABC/2 method is an accurate and simple “bedside” technique to estimate pneumocephalus volume. BioMed Central 2022-08-03 /pmc/articles/PMC9347102/ /pubmed/35922864 http://dx.doi.org/10.1186/s41016-022-00287-z Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/ (https://creativecommons.org/publicdomain/zero/1.0/) ) applies to the data made available in this article, unless otherwise stated in a credit line to the data.
spellingShingle Research
Chan, David Yuen Chung
Cheung, Eric Yuk Hong
Hui, Ka Ho
Leung, Cecelia Mei Sze
Ng, Stephanie Chi Ping
Mak, Wai Kit
Wong, George Kwok Chu
Chan, Tat Ming Danny
Poon, Wai Sang
ABC/2 formula for “bedside” postoperative pneumocephalus volume measurement
title ABC/2 formula for “bedside” postoperative pneumocephalus volume measurement
title_full ABC/2 formula for “bedside” postoperative pneumocephalus volume measurement
title_fullStr ABC/2 formula for “bedside” postoperative pneumocephalus volume measurement
title_full_unstemmed ABC/2 formula for “bedside” postoperative pneumocephalus volume measurement
title_short ABC/2 formula for “bedside” postoperative pneumocephalus volume measurement
title_sort abc/2 formula for “bedside” postoperative pneumocephalus volume measurement
topic Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9347102/
https://www.ncbi.nlm.nih.gov/pubmed/35922864
http://dx.doi.org/10.1186/s41016-022-00287-z
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