Accessory posterior cerebral artery (hyperplastic anterior choroidal artery) associated with contralateral accessory middle cerebral artery incidentally diagnosed by magnetic resonance angiography Article Swipe
Akira Uchino
,
Tadanobu Irie
·
YOU?
·
· 2023
· Open Access
·
· DOI: https://doi.org/10.21203/rs.3.rs-3705353/v1
YOU?
·
· 2023
· Open Access
·
· DOI: https://doi.org/10.21203/rs.3.rs-3705353/v1
Purpose To describe a case of accessory posterior cerebral artery (PCA) [hyperplastic anterior choroidal artery (AChA)] associated with contralateral accessory middle cerebral artery (MCA) incidentally diagnosed by magnetic resonance (MR) angiography. Methods A 71-year-old man with paroxysmal atrial fibrillation underwent cranial MR imaging and MR angiography of the intracranial region using a 1.5-T scanner for the evaluation of brain and vascular lesions. Results On MR angiography, two right PCAs of equal size arose from the internal carotid artery instead of the basilar artery. Additionally, a small left MCA branch arose from the proximal A2 segment of the anterior cerebral artery (ACA). Conclusion One of the branches of the PCA rarely arises from the AChA. This variation is referred to as a hyperplastic AChA or accessory PCA. The latter name was recently proposed and may be more appropriate than the former name. An MCA branch arising from the ACA is called an accessory MCA. It is a frontal branch of two types: proximal-origin and distal-origin. The distal-origin accessory MCA arises from the distal A1 segment, A1-A2 junction or proximal A2 segment. Distal-origin accessory MCAs are rare. Our patient had two rare variations: an accessory right PCA and a distal-origin accessory left PCA. To identify cerebral arterial variations, especially accessory MCA, volume-rendering images are more useful than maximum-intensity projection images on MR angiography.
Related Topics
Concepts
Medicine
Posterior cerebral artery
Anterior cerebral artery
Magnetic resonance angiography
Magnetic resonance imaging
Middle cerebral artery
Anterior choroidal artery
Basilar artery
Cerebral arteries
Radiology
Angiography
Anatomy
Maximum intensity projection
Internal carotid artery
Cardiology
Ischemia
Metadata
- Type
- preprint
- Language
- en
- Landing Page
- https://doi.org/10.21203/rs.3.rs-3705353/v1
- https://www.researchsquare.com/article/rs-3705353/latest.pdf
- OA Status
- green
- References
- 12
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W4389433954
All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W4389433954Canonical identifier for this work in OpenAlex
- DOI
-
https://doi.org/10.21203/rs.3.rs-3705353/v1Digital Object Identifier
- Title
-
Accessory posterior cerebral artery (hyperplastic anterior choroidal artery) associated with contralateral accessory middle cerebral artery incidentally diagnosed by magnetic resonance angiographyWork title
- Type
-
preprintOpenAlex work type
- Language
-
enPrimary language
- Publication year
-
2023Year of publication
- Publication date
-
2023-12-07Full publication date if available
- Authors
-
Akira Uchino, Tadanobu IrieList of authors in order
- Landing page
-
https://doi.org/10.21203/rs.3.rs-3705353/v1Publisher landing page
- PDF URL
-
https://www.researchsquare.com/article/rs-3705353/latest.pdfDirect link to full text PDF
- Open access
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YesWhether a free full text is available
- OA status
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greenOpen access status per OpenAlex
- OA URL
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https://www.researchsquare.com/article/rs-3705353/latest.pdfDirect OA link when available
- Concepts
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Medicine, Posterior cerebral artery, Anterior cerebral artery, Magnetic resonance angiography, Magnetic resonance imaging, Middle cerebral artery, Anterior choroidal artery, Basilar artery, Cerebral arteries, Radiology, Angiography, Anatomy, Maximum intensity projection, Internal carotid artery, Cardiology, IschemiaTop concepts (fields/topics) attached by OpenAlex
- Cited by
-
0Total citation count in OpenAlex
- References (count)
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12Number of works referenced by this work
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10Other works algorithmically related by OpenAlex
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| abstract_inverted_index.carotid | 77 |
| abstract_inverted_index.cranial | 41 |
| abstract_inverted_index.frontal | 157 |
| abstract_inverted_index.imaging | 43 |
| abstract_inverted_index.instead | 79 |
| abstract_inverted_index.patient | 187 |
| abstract_inverted_index.scanner | 54 |
| abstract_inverted_index.segment | 95 |
| abstract_inverted_index.Abstract | 0 |
| abstract_inverted_index.anterior | 13, 98 |
| abstract_inverted_index.arterial | 205 |
| abstract_inverted_index.branches | 106 |
| abstract_inverted_index.cerebral | 9, 22, 99, 204 |
| abstract_inverted_index.describe | 3 |
| abstract_inverted_index.identify | 203 |
| abstract_inverted_index.internal | 76 |
| abstract_inverted_index.junction | 176 |
| abstract_inverted_index.lesions. | 62 |
| abstract_inverted_index.magnetic | 28 |
| abstract_inverted_index.proposed | 132 |
| abstract_inverted_index.proximal | 93, 178 |
| abstract_inverted_index.recently | 131 |
| abstract_inverted_index.referred | 118 |
| abstract_inverted_index.segment, | 174 |
| abstract_inverted_index.segment. | 180 |
| abstract_inverted_index.vascular | 61 |
| abstract_inverted_index.accessory | 7, 20, 125, 152, 167, 182, 193, 199, 208 |
| abstract_inverted_index.choroidal | 14 |
| abstract_inverted_index.diagnosed | 26 |
| abstract_inverted_index.posterior | 8 |
| abstract_inverted_index.resonance | 29 |
| abstract_inverted_index.underwent | 40 |
| abstract_inverted_index.variation | 116 |
| abstract_inverted_index.Conclusion | 102 |
| abstract_inverted_index.associated | 17 |
| abstract_inverted_index.especially | 207 |
| abstract_inverted_index.evaluation | 57 |
| abstract_inverted_index.paroxysmal | 37 |
| abstract_inverted_index.projection | 217 |
| abstract_inverted_index.71-year-old | 34 |
| abstract_inverted_index.angiography | 46 |
| abstract_inverted_index.appropriate | 137 |
| abstract_inverted_index.variations, | 206 |
| abstract_inverted_index.variations: | 191 |
| abstract_inverted_index.angiography, | 66 |
| abstract_inverted_index.angiography. | 31, 221 |
| abstract_inverted_index.fibrillation | 39 |
| abstract_inverted_index.hyperplastic | 122 |
| abstract_inverted_index.incidentally | 25 |
| abstract_inverted_index.intracranial | 49 |
| abstract_inverted_index.Additionally, | 84 |
| abstract_inverted_index.Distal-origin | 181 |
| abstract_inverted_index.[hyperplastic | 12 |
| abstract_inverted_index.contralateral | 19 |
| abstract_inverted_index.distal-origin | 166, 198 |
| abstract_inverted_index.distal-origin. | 164 |
| abstract_inverted_index.proximal-origin | 162 |
| abstract_inverted_index.volume-rendering | 210 |
| abstract_inverted_index.maximum-intensity | 216 |
| cited_by_percentile_year | |
| countries_distinct_count | 0 |
| institutions_distinct_count | 2 |
| sustainable_development_goals[0].id | https://metadata.un.org/sdg/3 |
| sustainable_development_goals[0].score | 0.6800000071525574 |
| sustainable_development_goals[0].display_name | Good health and well-being |
| citation_normalized_percentile.value | 0.36192146 |
| citation_normalized_percentile.is_in_top_1_percent | False |
| citation_normalized_percentile.is_in_top_10_percent | False |