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Type: Journal article
Title: Bone foramen dimensions and blood flow calculation: best practices
Author: Hu, Q.
Nelson, T.J.
Seymour, R.S.
Citation: Journal of Anatomy, 2020; 236(2):357-369
Publisher: Wiley
Issue Date: 2020
ISSN: 0021-8782
Statement of
Qiaohui Hu, Thomas J. Nelson, Roger S. Seymour
Abstract: Some blood vessels enter bones through foramina, leaving the size of the foramen as a gauge for estimating the rate of blood flow and hence the metabolic rate of the supplied tissues. Foramen dimensions have been measured using varied methods in previous foramen studies, to relate regional blood flows with associated physiological processes. With the increasing interests in this 'foramen technique', standard methods with minimized measurement errors are therefore required. This study provides details of microphotographic and micro-computerized tomographic methods, and introduces a new alternative method, which uses impression material to measure foramen dimensions. The three methods are compared and the results indicate that all of them are capable of obtaining precise and accurate foramen dimension values, although they all have limitations. A microphotograph of the external opening is suggested to be the standard method because of its ease of use, but the alternative methods provide more detailed information on foramen shape. If the foramen is mainly occupied by one artery, blood flow rates can be calculated from foramen size and artery wall-lumen ratio, which is evaluated from the literature survey in this study. If veins or nerves also penetrate the foramen, a relative index of blood flow rate is nevertheless possible for comparative purposes.
Keywords: blood flow
computed tomography scan
impression material casting
Rights: © 2019 Anatomical Society
DOI: 10.1111/joa.13106
Grant ID: 170104952
Appears in Collections:Anatomical Sciences publications
Aurora harvest 4

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