{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,19]],"date-time":"2026-05-19T11:09:54Z","timestamp":1779188994639,"version":"3.51.4"},"reference-count":16,"publisher":"Springer Science and Business Media LLC","issue":"1","license":[{"start":{"date-parts":[[2026,5,19]],"date-time":"2026-05-19T00:00:00Z","timestamp":1779148800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2026,5,19]],"date-time":"2026-05-19T00:00:00Z","timestamp":1779148800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Surg Radiol Anat"],"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>The persistent proatlantal artery represents persistence of the embryonic first cervical intersegmental artery and creates a carotid\u2013vertebral anastomosis. A persisting carotid duct is an exceptionally rare persistence of the dorsal aortic segment between the third and fourth aortic arches. It may be associated with segmental occlusion\/stenosis of the proximal external carotid artery.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>\n                      Archived\n                      <jats:bold>c<\/jats:bold>\n                      omputed tomography angiography files in a 62 year-old man were studied anatomically.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>A right-sided persisting carotid duct arising from the subclavian artery with short proximal ECA occlusion\/stenosis and reconstitution of the distal ECA was found. A large type II PPA arose from the reconstituted ECA, formed a suboccipital loop giving rise to the occipital segment of the occipital artery, and established two distinct junctions with the vertebral artery: an anterior branch to the V3 segment near the posterior condylar foramen and an inferior branch to the V2 segment immediately before entry into the C1 transverse foramen.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>This configuration provides imaging evidence of a true \u2018double-connection\u2019 of a persisting proatlantal artery, coexisting with a persisting carotid duct and proximal external carotid occlusion\/stenosis, with potential implications for carotid interventions and posterior-circulation haemodynamics.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1007\/s00276-026-03892-0","type":"journal-article","created":{"date-parts":[[2026,5,19]],"date-time":"2026-05-19T10:40:14Z","timestamp":1779187214000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Double vertebral artery-connected persisting proatlantal artery coexisting with a persisting carotid duct in an adult case: first evidence"],"prefix":"10.1007","volume":"48","author":[{"given":"Mugurel Constantin","family":"Rusu","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Adelina Maria","family":"Jianu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Laura Octavia","family":"Grigori\u0163\u0103","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"R\u0103zvan Costin","family":"Tudose","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2026,5,19]]},"reference":[{"key":"3892_CR1","doi-asserted-by":"publisher","first-page":"411","DOI":"10.1007\/s00381-008-0765-7","volume":"25","author":"L Vasovic","year":"2009","unstructured":"Vasovic L, Mojsilovic M, Andelkovic Z, Jovanovic I, Arsic S, Vlajkovic S, Milenkovic Z (2009) Proatlantal intersegmental artery: a review of normal and pathological features. 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