{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,18]],"date-time":"2026-07-18T14:43:06Z","timestamp":1784385786266,"version":"3.55.0"},"reference-count":37,"publisher":"Korean Society of Interventional Neuroradiology","issue":"1","license":[{"start":{"date-parts":[[2025,12,18]],"date-time":"2025-12-18T00:00:00Z","timestamp":1766016000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":["neurointervention.org"],"crossmark-restriction":true},"short-container-title":["Neurointervention"],"published-print":{"date-parts":[[2026,3,1]]},"abstract":"<jats:p>We reviewed our experience using transulnar access (TUA) to obtain intraoperative cerebral angiography during prone surgery for vascular pathology, where conventional transfemoral and transradial access can be difficult. Ten consecutive patients treated between April 2020 and August 2025 were included. Ulnar artery access was obtained in the supine position before the patient was turned prone for surgery, and angiography was performed after the procedure without repositioning. Eight patients had arteriovenous malformations and 2 had dural arteriovenous fistulas. In all cases, intraoperative angiography was successfully completed through the ulnar artery. The mean ulnar artery diameter was 2.4 mm, indicating adequate vessel size for catheterization, and mean fluoroscopy time was 7.5 minutes. No immediate access-site complications occurred, and no case required conversion to another access route. These findings suggest that TUA is technically feasible and may provide a practical option for intraoperative cerebral angiography when prone positioning limits access to traditional arterial sites. Although the study is limited by its small sample size and retrospective design, the consistent procedural success supports further investigation.<\/jats:p>","DOI":"10.5469\/neuroint.2025.00934","type":"journal-article","created":{"date-parts":[[2025,12,18]],"date-time":"2025-12-18T00:17:59Z","timestamp":1766017079000},"page":"35-43","update-policy":"https:\/\/doi.org\/10.5469\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Transulnar Arterial Access for Intra-Operative Cerebral Angiography during Prone Cerebrovascular Surgery"],"prefix":"10.5469","volume":"21","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6152-2510","authenticated-orcid":true,"given":"Hasan","family":"Ahmad","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5660-5418","authenticated-orcid":true,"given":"Om","family":"Gandhi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0003-3626-0306","authenticated-orcid":true,"given":"Jaskeerat","family":"Gujral","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7643-2622","authenticated-orcid":true,"given":"Rashad","family":"Jabarkheel","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7844-5232","authenticated-orcid":true,"given":"Sartaaj","family":"Walia","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9392-3143","authenticated-orcid":true,"given":"Sandeep","family":"Kandregula","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8311-2336","authenticated-orcid":true,"given":"Omar","family":"Choudhri","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"3424","reference":[{"key":"ref1","doi-asserted-by":"publisher","DOI":"10.3174\/ajnr.a2443"},{"key":"ref2","doi-asserted-by":"publisher","DOI":"10.1097\/00006123-199202000-00001"},{"key":"ref3","first-page":"420","volume-title":"The prevalence and outcomes of transradial percutaneous coronary intervention for ST-segment elevation myocardial infarction: analysis from the National Cardiovascular Data Registry (2007 to 2011)","author":"Baklanov","year":"2013"},{"key":"ref4","first-page":"964","volume-title":"ST-segment elevation myocardial infarction treated by radial or femoral approach in a multicenter randomized clinical trial: the STEMI-RADIAL trial","author":"Bernat","year":"2014"},{"key":"ref5","doi-asserted-by":"publisher","DOI":"10.1136\/hrt.2007.136390"},{"key":"ref6","doi-asserted-by":"publisher","DOI":"10.1016\/s0140-6736(15)60292-6"},{"key":"ref7","first-page":"151","volume-title":"Diagnostic angiography of the cerebrospinal vasculature","author":"Rabinov","year":"2016"},{"key":"ref8","first-page":"onsE329","volume-title":"Direct radial artery access with the 070 neuron guide catheter for aneurysm coiling: a novel application of the neuron catheter for cerebral interventions","author":"Lawson","year":"2012"},{"key":"ref9","doi-asserted-by":"publisher","DOI":"10.1007\/s00062-020-00984-1"},{"key":"ref10","doi-asserted-by":"publisher","DOI":"10.1177\/0003319717703226"},{"key":"ref11","first-page":"42","volume-title":"Feasibility of ulnar artery for cardiac catheterization: AJmer ULnar ARtery (AJULAR) catheterization study","author":"Gokhroo","year":"2015"},{"key":"ref12","first-page":"1","volume-title":"Ulnar artery interventions non-inferior to radial approach: AJmer Ulnar ARtery (AJULAR) Intervention Working Group study results","author":"Gokhroo","year":"2016"},{"key":"ref13","doi-asserted-by":"publisher","DOI":"10.1136\/jnis-2023-snis.354"},{"key":"ref14","doi-asserted-by":"publisher","DOI":"10.1136\/jnis-2023-020709"},{"key":"ref15","volume-title":"Feasibility and safety of transradial intraoperative angiography for neurosurgery: an institutional experience. 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