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Failure testing cerebral arteries: are branch points weaker than unbranched vessels?

Lookup NU author(s): Patrick Mitchell

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Abstract

The bursting pressure of samples of cerebral arteries was measured. Eighty-five samples of cerebral arteries were taken from 11 fresh cadavers. These samples were filled with saline underpressure to the point of bursting. The bursting pressures were recorded. The mean bursting pressure of all samples was 1.8 bar (1370 mmHg). The range was 0.7-4.6 (530-3190 mmHg). The mean bursting pressures of samples containing branch points was 1.6 and that of those without branch points was 2.2. This difference was significant with p < 0.001. Samples taken from persons dying from subarachnoid haemorrhage were weaker (mean 1.45 bar) than those taken from persons dying from other causes (mean 1.971 bar). This difference was significant with p < 0.001. Bursting pressure was found to decline at 2% per year of age. This figure was different from 0 with p = 0.003.

Publication metadata

Author(s): Mitchell P, Jakubowski J

Publication type: Article

Publication status: Published

Journal: British Journal of Neurosurgery

Year: 2002

Volume: 16

Issue: 6

Pages: 578-582

ISSN (print): 0268-8697

ISSN (electronic): 1360-046X

Publisher: Informa Healthcare

URL: http://dx.doi.org/10.1080/02688690209168364

DOI: 10.1080/02688690209168364

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