Relationship between cerebral aneurysms and variations in cerebral basal arterial network: a morphometric cross-sectional study in Computed Tomography Angiograms from a neurointerventional unit

ObjectiveSegments of cerebral basal arterial network (CBAN) dampen the peak pressure in blood flowing through these arteries, thus minimising the chances of development of cerebral aneurysms. The objective of this research was to find the relationship of occurrence of intracranial aneurysms to varia...

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Bibliographic Details
Published in:BMJ open 2021-09, Vol.11 (9), p.e051028-e051028
Main Authors: Burlakoti, Arjun, Kumaratilake, Jaliya, Taylor, Jamie, Henneberg, Maciej
Format: Article
Language:English
Subjects:
Adult
anatomy
Aneurysms
Carotid arteries
Carotid Artery, Internal - diagnostic imaging
Cerebral Angiography
Cross-Sectional Studies
Female
Humans
Intracranial Aneurysm - diagnostic imaging
Male
Medical imaging
Neurology
neuroradiology
neurosurgery
Retrospective Studies
Software
Statistical analysis
Stroke
Tomography, X-Ray Computed
vascular surgery
Veins & arteries
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Summary:ObjectiveSegments of cerebral basal arterial network (CBAN) dampen the peak pressure in blood flowing through these arteries, thus minimising the chances of development of cerebral aneurysms. The objective of this research was to find the relationship of occurrence of intracranial aneurysms to variations of the components of the CBAN.Design and settingThis is an observational, quantitative and retrospective research, which used cerebral CT angiography (CCTA) images.ParticipantsCerebral CTA of 145 adult patients of both sexes were studied.Main outcome measuresDiameters of segments of CBAN were measured in CCTA images and the relative size of each vessel was calculated to standardise for differences in overall arterial sizes among patients. Relationships among sizes of CBAN components were analysed. Presence of aneurysms in different parts of the CBAN was recorded.ResultsForty-six aneurysms in right internal carotid artery (ICA) and middle cerebral artery (MCA) and 32 aneurysms in left ICA and MCA segments were noted in 42 and 30 patients, respectively. Aneurysms in anterior communicating artery complex and vertebral-basilar arterial segments were seen in 27 and 8 patients, respectively, while they were not detected in parts of posterior cerebral artery (PCA). The significant (p
ISSN:2044-6055
2044-6055
DOI:10.1136/bmjopen-2021-051028