{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,28]],"date-time":"2026-08-28T02:35:02Z","timestamp":1787884502906,"version":"build-2784847793"},"reference-count":8,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2018,7,11]],"date-time":"2018-07-11T00:00:00Z","timestamp":1531267200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/100000002","name":"National Institutes of Health","doi-asserted-by":"publisher","award":["1K01OD015134"],"award-info":[{"award-number":["1K01OD015134"]}],"id":[{"id":"10.13039\/100000002","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000002","name":"National Institutes of Health","doi-asserted-by":"publisher","award":["L40 TR001136"],"award-info":[{"award-number":["L40 TR001136"]}],"id":[{"id":"10.13039\/100000002","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Vet Radiology Ultrasound"],"published-print":{"date-parts":[[2018,11]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Previously published myelographic studies do not report findings at the junction between the seventh cervical (C7) and first thoracic vertebrae (T1). Modern digital radiographic equipment allows improved visualization of C7\u2010T1. Based on clinical experience, we hypothesized that 50% reduction of the dorsal myelographic column or 20% reduction of the dural diameter, criteria commonly used as a supportive finding for spinal cord compression in the cervical vertebral column, do not apply at C7\u2010T1. A myelographic study was performed on 12 healthy, neurologically normal horses. Our hypothesis was confirmed; using established criteria eight of 12 horses would have been classified as having evidence of spinal cord compression at C7\u2010T1. The dorsal myelographic column reduction at C7\u2010T1 was 48 \u00b1 12%, while the C6\u2010C7 dorsal myelographic column reduction was 33 \u00b1 17% (mean \u00b1 standard deviation) (<jats:italic>P<\/jats:italic>\u00a0=\u00a00.010). The dural diameter reduction at C7\u2010T1 (22.0 \u00b1 6.7%) was significantly greater than the dural diameter reduction at C6\u2010C7 (13.2 \u00b1 9.5%) (<jats:italic>P<\/jats:italic>\u00a0=\u00a00.0007). Further measurements and comparisons suggested that the apparent greater reduction of dorsal myelographic column and dural diameter at C7\u2010T1 was due to larger intravertebral measurements at C7 rather than smaller intervertebral values at C7\u2010T1. Based on these findings, alternative criteria should be used at C7\u2010T1 when assessing clinical cases for cervical stenotic myelopathy. Reduction of the dorsal myelographic column by 60% or of the dural diameter by 30% would avoid high numbers of false positive myelographic cases at C7\u2010T1.<\/jats:p>","DOI":"10.1111\/vru.12662","type":"journal-article","created":{"date-parts":[[2018,7,12]],"date-time":"2018-07-12T02:19:34Z","timestamp":1531361974000},"page":"662-666","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":16,"title":["Current dorsal myelographic column and dural diameter reduction rules do not apply at the cervicothoracic junction in horses"],"prefix":"10.1111","volume":"59","author":[{"given":"Krista","family":"Estell","sequence":"first","affiliation":[{"name":"Department of Large Animal Clinical Sciences Marion DuPont Scott Equine Medical Center Leesburg VA 20176"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9401-4857","authenticated-orcid":false,"given":"Mathieu","family":"Spriet","sequence":"additional","affiliation":[{"name":"Department of Surgical and Radiological Sciences School of Veterinary Medicine University of California Davis CA 95616"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kathryn L.","family":"Phillips","sequence":"additional","affiliation":[{"name":"Department of Surgical and Radiological Sciences School of Veterinary Medicine University of California Davis CA 95616"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Monica","family":"Aleman","sequence":"additional","affiliation":[{"name":"Department of Medicine and Epidemiology School of Veterinary Medicine University of California Davis CA 95616"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Carrie J.","family":"Finno","sequence":"additional","affiliation":[{"name":"Department of Population Health and Reproduction School of Veterinary Medicine University of California Davis CA 95616"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2018,7,11]]},"reference":[{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1740-8261.1987.tb01725.x"},{"key":"e_1_2_7_3_1","doi-asserted-by":"publisher","DOI":"10.2746\/0425164044864642"},{"key":"e_1_2_7_4_1","first-page":"44","article-title":"Spinal cord disease in the horse","volume":"68","author":"Mayhew IG","year":"1978","journal-title":"Cornell Vet"},{"key":"e_1_2_7_5_1","doi-asserted-by":"crossref","first-page":"204","DOI":"10.2460\/ajvr.1980.41.02.204","article-title":"Metrizamide myelography in the horse\u2014Clinical, radiographic, and pathologic\u2010changes","volume":"41","author":"Nyland TG","year":"1980","journal-title":"Am J Vet Res"},{"key":"e_1_2_7_6_1","first-page":"253","article-title":"Diagnosis of cervical vertebral malformation in the horse","volume":"28","author":"Nixon AJ","year":"1982","journal-title":"P Annu Conv Am Equin"},{"key":"e_1_2_7_7_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1939-1676.2007.tb03026.x"},{"key":"e_1_2_7_8_1","doi-asserted-by":"publisher","DOI":"10.2460\/javma.237.7.812"},{"key":"e_1_2_7_9_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1939-1676.2011.00817.x"}],"container-title":["Veterinary Radiology &amp; Ultrasound"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1111%2Fvru.12662","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/vru.12662","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,7,5]],"date-time":"2025-07-05T18:56:32Z","timestamp":1751741792000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1111\/vru.12662"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2018,7,11]]},"references-count":8,"journal-issue":{"issue":"6","published-print":{"date-parts":[[2018,11]]}},"alternative-id":["10.1111\/vru.12662"],"URL":"https:\/\/doi.org\/10.1111\/vru.12662","archive":["Portico"],"relation":{},"ISSN":["1058-8183","1740-8261"],"issn-type":[{"value":"1058-8183","type":"print"},{"value":"1740-8261","type":"electronic"}],"subject":[],"published":{"date-parts":[[2018,7,11]]},"assertion":[{"value":"2018-01-11","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2018-04-15","order":1,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2018-07-11","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}