Radiological anatomy of the intracranial vertebral artery in a select South African cohort of patients
Abstract The intracranial segment of the vertebral artery (VA) is the unique part of the artery where the two VAs join to form a single vascular channel, viz. the basilar artery. In addition to this typical description, anatomical variations have been described; the presence of anatomical variation...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2021-06-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-021-91744-9 |
| _version_ | 1831773756015509504 |
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| author | B. R. Omotoso R. Harrichandparsad K. S. Satyapal I. G. Moodley L. Lazarus |
| author_facet | B. R. Omotoso R. Harrichandparsad K. S. Satyapal I. G. Moodley L. Lazarus |
| author_sort | B. R. Omotoso |
| collection | DOAJ |
| description | Abstract The intracranial segment of the vertebral artery (VA) is the unique part of the artery where the two VAs join to form a single vascular channel, viz. the basilar artery. In addition to this typical description, anatomical variations have been described; the presence of anatomical variation has been associated with some pathological processes, neurological complications, and the risk of vascular diseases in the posterior circulatory territory. We evaluated the typical anatomical features and variations of the VA4 component of the VA in a South African population to provide useful data on the prevalence of variation and morphometry of the distal VA. The study is an observational, retrospective chart review of 554 consecutive South African patients (Black, Indian, and Caucasian) who had been examined with multidetector computed tomography angiography (MDCTA) from January 2009 to September 2019. We observed various anatomical variations in the VA4 segment of the VA. We report the incidence of VA hypoplasia, hypoplastic terminal VA, and atresia. Fenestration and duplicate posterior inferior cerebellar artery (PICA) origin were also observed. The left intracranial VA was significantly larger than the right. Our study shows that anatomical variation of the intracranial VA is common in the population studied, with a total prevalence of 36.5%. Understanding the patterns of anatomical variations of the VAs will contribute significantly to the interpretation of ischemic areas and diagnosis of various diseases in the posterior circulatory territory. |
| first_indexed | 2024-12-22T08:42:13Z |
| format | Article |
| id | doaj.art-544eda1ebd8345ef8f4b56c10fc2f936 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-12-22T08:42:13Z |
| publishDate | 2021-06-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-544eda1ebd8345ef8f4b56c10fc2f9362022-12-21T18:32:12ZengNature PortfolioScientific Reports2045-23222021-06-011111910.1038/s41598-021-91744-9Radiological anatomy of the intracranial vertebral artery in a select South African cohort of patientsB. R. Omotoso0R. Harrichandparsad1K. S. Satyapal2I. G. Moodley3L. Lazarus4Discipline of Clinical Anatomy, School of Laboratory Medicine and Medical Sciences, College of Health Sciences, University of KwaZulu-Natal, Westville CampusDepartment of Neurosurgery, School of Clinical Medicine, College of Health Sciences, Nelson R Mandela School of Medicine, University of KwaZulu-NatalDiscipline of Clinical Anatomy, School of Laboratory Medicine and Medical Sciences, College of Health Sciences, University of KwaZulu-Natal, Westville CampusDepartment of Radiology, Jackpersad and Partners Inc, Specialist Diagnostic Radiologists, Lenmed Ethekwini Hospital and Heart CentreDiscipline of Clinical Anatomy, School of Laboratory Medicine and Medical Sciences, College of Health Sciences, University of KwaZulu-Natal, Westville CampusAbstract The intracranial segment of the vertebral artery (VA) is the unique part of the artery where the two VAs join to form a single vascular channel, viz. the basilar artery. In addition to this typical description, anatomical variations have been described; the presence of anatomical variation has been associated with some pathological processes, neurological complications, and the risk of vascular diseases in the posterior circulatory territory. We evaluated the typical anatomical features and variations of the VA4 component of the VA in a South African population to provide useful data on the prevalence of variation and morphometry of the distal VA. The study is an observational, retrospective chart review of 554 consecutive South African patients (Black, Indian, and Caucasian) who had been examined with multidetector computed tomography angiography (MDCTA) from January 2009 to September 2019. We observed various anatomical variations in the VA4 segment of the VA. We report the incidence of VA hypoplasia, hypoplastic terminal VA, and atresia. Fenestration and duplicate posterior inferior cerebellar artery (PICA) origin were also observed. The left intracranial VA was significantly larger than the right. Our study shows that anatomical variation of the intracranial VA is common in the population studied, with a total prevalence of 36.5%. Understanding the patterns of anatomical variations of the VAs will contribute significantly to the interpretation of ischemic areas and diagnosis of various diseases in the posterior circulatory territory.https://doi.org/10.1038/s41598-021-91744-9 |
| spellingShingle | B. R. Omotoso R. Harrichandparsad K. S. Satyapal I. G. Moodley L. Lazarus Radiological anatomy of the intracranial vertebral artery in a select South African cohort of patients Scientific Reports |
| title | Radiological anatomy of the intracranial vertebral artery in a select South African cohort of patients |
| title_full | Radiological anatomy of the intracranial vertebral artery in a select South African cohort of patients |
| title_fullStr | Radiological anatomy of the intracranial vertebral artery in a select South African cohort of patients |
| title_full_unstemmed | Radiological anatomy of the intracranial vertebral artery in a select South African cohort of patients |
| title_short | Radiological anatomy of the intracranial vertebral artery in a select South African cohort of patients |
| title_sort | radiological anatomy of the intracranial vertebral artery in a select south african cohort of patients |
| url | https://doi.org/10.1038/s41598-021-91744-9 |
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