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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Published in | BMJ open Vol. 11; no. 9; p. e051028 |
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Abstract | 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<0.001) inverse relationships between sizes of posterior communicating artery and the first segment of PCA on both sides indicated that blood inputs to the second part of PCA were similar. Difference in means of the index of arterial size variation for people with aneurysms (mean 0.96, SD 0.23) and without aneurysms (mean 0.86, SD 0.22) was significant (p=0.015).ConclusionVariation in segments of CBAN was quantified. The peak pressure dampening mechanism in such arterial segments reduces the chances of development of aneurysms. |
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AbstractList | 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<0.001) inverse relationships between sizes of posterior communicating artery and the first segment of PCA on both sides indicated that blood inputs to the second part of PCA were similar. Difference in means of the index of arterial size variation for people with aneurysms (mean 0.96, SD 0.23) and without aneurysms (mean 0.86, SD 0.22) was significant (p=0.015).ConclusionVariation in segments of CBAN was quantified. The peak pressure dampening mechanism in such arterial segments reduces the chances of development of aneurysms. Objective Segments 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 setting This is an observational, quantitative and retrospective research, which used cerebral CT angiography (CCTA) images.Participants Cerebral CTA of 145 adult patients of both sexes were studied.Main outcome measures Diameters 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.Results Forty-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<0.001) inverse relationships between sizes of posterior communicating artery and the first segment of PCA on both sides indicated that blood inputs to the second part of PCA were similar. Difference in means of the index of arterial size variation for people with aneurysms (mean 0.96, SD 0.23) and without aneurysms (mean 0.86, SD 0.22) was significant (p=0.015).Conclusion Variation in segments of CBAN was quantified. The peak pressure dampening mechanism in such arterial segments reduces the chances of development of aneurysms. Segments 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. This is an observational, quantitative and retrospective research, which used cerebral CT angiography (CCTA) images. Cerebral CTA of 145 adult patients of both sexes were studied. Diameters 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. Forty-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<0.001) inverse relationships between sizes of posterior communicating artery and the first segment of PCA on both sides indicated that blood inputs to the second part of PCA were similar. Difference in means of the index of arterial size variation for people with aneurysms (mean 0.96, SD 0.23) and without aneurysms (mean 0.86, SD 0.22) was significant (p=0.015). Variation in segments of CBAN was quantified. The peak pressure dampening mechanism in such arterial segments reduces the chances of development of aneurysms. |
Author | Burlakoti, Arjun Taylor, Jamie Henneberg, Maciej Kumaratilake, Jaliya |
AuthorAffiliation | 4 South Australia Medical Imaging , Royal Adelaide Hospital , Adelaide , South Australia , Australia 1 School of Health Sciences , University of South Australia , Adelaide , South Australia , Australia 2 UniSA Allied Health and Human Performance , University of South Australia , Adelaide , South Australia , Australia 3 Anatomy and Pathology , The University of Adelaide Adelaide Medical School , Adelaide , South Australia , Australia 5 Institute of Evolutionary Medicine , University of Zurich , Zurich , Switzerland |
AuthorAffiliation_xml | – name: 5 Institute of Evolutionary Medicine , University of Zurich , Zurich , Switzerland – name: 1 School of Health Sciences , University of South Australia , Adelaide , South Australia , Australia – name: 3 Anatomy and Pathology , The University of Adelaide Adelaide Medical School , Adelaide , South Australia , Australia – name: 2 UniSA Allied Health and Human Performance , University of South Australia , Adelaide , South Australia , Australia – name: 4 South Australia Medical Imaging , Royal Adelaide Hospital , Adelaide , South Australia , Australia |
Author_xml | – sequence: 1 givenname: Arjun orcidid: 0000-0001-9317-6352 surname: Burlakoti fullname: Burlakoti, Arjun email: arjun.burlakoti@unisa.edu.au organization: UniSA Allied Health and Human Performance, University of South Australia, Adelaide, South Australia, Australia – sequence: 2 givenname: Jaliya surname: Kumaratilake fullname: Kumaratilake, Jaliya organization: Anatomy and Pathology, The University of Adelaide Adelaide Medical School, Adelaide, South Australia, Australia – sequence: 3 givenname: Jamie surname: Taylor fullname: Taylor, Jamie organization: South Australia Medical Imaging, Royal Adelaide Hospital, Adelaide, South Australia, Australia – sequence: 4 givenname: Maciej surname: Henneberg fullname: Henneberg, Maciej organization: Institute of Evolutionary Medicine, University of Zurich, Zurich, Switzerland |
BackLink | https://www.ncbi.nlm.nih.gov/pubmed/34531215$$D View this record in MEDLINE/PubMed |
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Snippet | ObjectiveSegments of cerebral basal arterial network (CBAN) dampen the peak pressure in blood flowing through these arteries, thus minimising the chances of... Segments of cerebral basal arterial network (CBAN) dampen the peak pressure in blood flowing through these arteries, thus minimising the chances of development... OBJECTIVESegments of cerebral basal arterial network (CBAN) dampen the peak pressure in blood flowing through these arteries, thus minimising the chances of... Objective Segments of cerebral basal arterial network (CBAN) dampen the peak pressure in blood flowing through these arteries, thus minimising the chances of... |
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SubjectTerms | 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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Title | Relationship between cerebral aneurysms and variations in cerebral basal arterial network: a morphometric cross-sectional study in Computed Tomography Angiograms from a neurointerventional unit |
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