{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,25]],"date-time":"2025-10-25T12:07:33Z","timestamp":1761394053277},"reference-count":0,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"6","content-domain":{"domain":["www.ahajournals.org"],"crossmark-restriction":true},"short-container-title":["Stroke"],"published-print":{"date-parts":[[1994,6]]},"abstract":"<jats:p>Transient neurological symptoms of brain stem or occipital lobe origin may be caused by transient ischemic attack in the vertebrobasilar territory (VB-TIA) or late-onset (or late-life) migraine accompaniment (LOMA). It is often clinically difficult to distinguish between VB-TIA and LOMA.<\/jats:p>\n          <jats:p>Cerebral blood flow of 23 patients with VB-TIA, 24 with LOMA, and 28 age-matched control subjects was measured using the 133Xe inhalation regional cerebral blood flow (rCBF) technique.<\/jats:p>\n          <jats:p>After adjusting for differences in baseline variables such as blood pressure, hematocrit, and PCO2, patients with VB-TIA had (1) lower mean rCBF than control subjects (P &lt; .003) as measured by the initial slope index method; (2) more frequent anterior rCBF asymmetries than control subjects and patients with LOMA (P &lt; .03 for both comparisons); and (3) higher mean interhemispheric rCBF differences compared with patients with LOMA (P = .08) and control subjects (P &lt; .02).<\/jats:p>\n          <jats:p>Regional CBF patterns in patients with VB-TIA and LOMA differ, with lower rCBF and more asymmetry of the anterior blood flows in patients with VB-TIA, probably reflecting the effects of stroke risk factors on the cerebral circulation. Patients with LOMA have rCBF patterns more closely resembling those of age-matched healthy subjects. rCBF measurements may assist in the clinical diagnosis of VB-TIA and late-onset migrainous events.<\/jats:p>","DOI":"10.1161\/01.str.25.6.1219","type":"journal-article","created":{"date-parts":[[2011,6,17]],"date-time":"2011-06-17T20:08:03Z","timestamp":1308341283000},"page":"1219-1222","update-policy":"http:\/\/dx.doi.org\/10.1161\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":5,"title":["Cerebral blood flow in migraine accompaniments and vertebrobasilar ischemia."],"prefix":"10.1161","volume":"25","author":[{"given":"N M","family":"Ramadan","sequence":"first","affiliation":[{"name":"Department of Neurology, Henry Ford Hospital and Health Sciences Center, Detroit, MI 48202-2689."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"S R","family":"Levine","sequence":"additional","affiliation":[{"name":"Department of Neurology, Henry Ford Hospital and Health Sciences Center, Detroit, MI 48202-2689."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"K M","family":"Welch","sequence":"additional","affiliation":[{"name":"Department of Neurology, Henry Ford Hospital and Health Sciences Center, Detroit, MI 48202-2689."}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"276","container-title":["Stroke"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.ahajournals.org\/doi\/pdf\/10.1161\/01.STR.25.6.1219","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2024,5,12]],"date-time":"2024-05-12T22:21:46Z","timestamp":1715552506000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.ahajournals.org\/doi\/10.1161\/01.STR.25.6.1219"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1994,6]]},"references-count":0,"journal-issue":{"issue":"6","published-print":{"date-parts":[[1994,6]]}},"alternative-id":["10.1161\/01.STR.25.6.1219"],"URL":"https:\/\/doi.org\/10.1161\/01.str.25.6.1219","relation":{},"ISSN":["0039-2499","1524-4628"],"issn-type":[{"value":"0039-2499","type":"print"},{"value":"1524-4628","type":"electronic"}],"subject":[],"published":{"date-parts":[[1994,6]]},"assertion":[{"value":"1994-06-01","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}