{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,24]],"date-time":"2026-03-24T14:56:16Z","timestamp":1774364176287,"version":"3.50.1"},"reference-count":25,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2026,3,19]],"date-time":"2026-03-19T00:00:00Z","timestamp":1773878400000},"content-version":"vor","delay-in-days":18,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,3,1]],"date-time":"2026-03-01T00:00:00Z","timestamp":1772323200000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Vet Radiology Ultrasound"],"published-print":{"date-parts":[[2026,3]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>Spinal dural ossifications (SDOs) are bone plaques on the dura mater surface. They are usually incidental findings in humans and dogs, and rarely can cause clinical signs. The authors noticed that SDOs on magnetic resonance imaging (MRI) may appear hyperintense on a pre\u2010contrast T1\u2010weighted (T1W) sequence. This study aimed to assess the MRI signal of SDOs in dogs. For this retrospective descriptive study, the hospital archive was searched for dogs that underwent both a pre\u2010contrast computed tomography (CT) study and at least one pre\u2010contrast T1W MRI sequence, from January 2020 to April 2024. CT images were evaluated for the presence of SDOs, and the MRI signal of the lesions was assessed at the same level by one first\u2010year diagnostic imaging resident and three board\u2010certified radiologists. Dogs\u2019 breed, gender, and age were recorded. Ten dogs were included. Adult dogs (median\u00a0=\u00a010.5 years) and large breed dogs (median\u00a0=\u00a031\u00a0kg) were overrepresented. On CT, all SDOs appeared as punctiform or linear mineral\u2010attenuating structures on the dura mater. SDOs were predominantly hyperintense on T1W and hypointense on T2\u2010weighted (T2W) images. When fluid attenuating inversion recovery (FLAIR), short tau inversion recovery (STIR), and T2*W sequences were available, SDOs were hyperintense, iso\u2010\/hypointense, and presented signal void, respectively. This study confirms SDOs are commonly T1 hyperintense. This signal likely depends on the architecture of microcalcifications: calcium traps water protons, slowing their rotation to near Larmor frequency, and shortening T1 recovery times. Pre\u2010contrast T1W sequences should be carefully evaluated to avoid misinterpreting SDOs for contrast\u2010enhancing dural pathologies (such as plaque\u2010like neoplastic dural lesions) or punctiform hemorrhage.<\/jats:p>","DOI":"10.1111\/vru.70148","type":"journal-article","created":{"date-parts":[[2026,3,19]],"date-time":"2026-03-19T12:07:01Z","timestamp":1773922021000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Spinal Dural Ossifications Are Hyperintense on T1\u2010Weighted Sequence and May Mimic Dural Lesions"],"prefix":"10.1111","volume":"67","author":[{"given":"C.","family":"Nanni","sequence":"first","affiliation":[{"name":"Diagnostic Imaging Department AniCura Ospedale Veterinario \u201cI Portoni Rossi\u201d  Zola Predosa (Bologna) Italy"},{"name":"Antech Imaging Services  Irvine California USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"S.","family":"Morabito","sequence":"additional","affiliation":[{"name":"Diagnostic Imaging Department AniCura Ospedale Veterinario \u201cI Portoni Rossi\u201d  Zola Predosa (Bologna) Italy"},{"name":"Antech Imaging Services  Irvine California USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"C.","family":"Mattei","sequence":"additional","affiliation":[{"name":"Diagnostic Imaging Department AniCura Ospedale Veterinario \u201cI Portoni Rossi\u201d  Zola Predosa (Bologna) Italy"},{"name":"Antech Imaging Services  Irvine California USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"M.","family":"Baldinetti","sequence":"additional","affiliation":[{"name":"Diagnostic Imaging Department AniCura Ospedale Veterinario \u201cI Portoni Rossi\u201d  Zola Predosa (Bologna) Italy"},{"name":"Antech Imaging Services  Irvine California USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"S.","family":"Specchi","sequence":"additional","affiliation":[{"name":"Diagnostic Imaging Department AniCura Ospedale Veterinario \u201cI Portoni Rossi\u201d  Zola Predosa (Bologna) Italy"},{"name":"Antech Imaging Services  Irvine California USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2026,3,19]]},"reference":[{"key":"e_1_2_10_2_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1740-8261.1969.tb00623.x"},{"key":"e_1_2_10_3_1","doi-asserted-by":"publisher","DOI":"10.1186\/1751-0147-55-47"},{"key":"e_1_2_10_4_1","doi-asserted-by":"publisher","DOI":"10.2214\/ajr.177.2.1770461"},{"issue":"9","key":"e_1_2_10_5_1","first-page":"543","article-title":"Ossification of the Lumbosacral Dura and Arachnoid Following Spinal Cord Trauma. 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