{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,21]],"date-time":"2026-08-21T13:31:28Z","timestamp":1787319088753,"version":"build-2736575974"},"reference-count":15,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2017,7,19]],"date-time":"2017-07-19T00:00:00Z","timestamp":1500422400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/100000070","name":"National Institute of Biomedical Imaging and Bioengineering","doi-asserted-by":"publisher","award":["R25EB016671"],"award-info":[{"award-number":["R25EB016671"]}],"id":[{"id":"10.13039\/100000070","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100006108","name":"National Center for Advancing Translational Sciences","doi-asserted-by":"publisher","award":["UL1TR000128"],"award-info":[{"award-number":["UL1TR000128"]}],"id":[{"id":"10.13039\/100006108","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Journal of Neuroimaging"],"published-print":{"date-parts":[[2018,1]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>BACKGROUND AND PURPOSE<\/jats:title>\n                    <jats:p>Physiologic asymmetry of transverse sinus (TS) caliber is common and can lead to misinterpretation of magnetic resonance venography (MRV) studies of the brain. This retrospective study assesses the ability of multiple anatomic features on axial noncontrast T1\u2010weighted images (T1WIs) of the brain to predict congenital TS dominance.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>METHODS<\/jats:title>\n                    <jats:p>One hundred consecutively acquired combined MRI\u2010MRV studies of the brain were reviewed. On noncontrast axial T1WI, each reviewer measured (1) inclination of the groove for the superior sagittal sinus (SSS), (2) angulation of the posterior falx, (3) laterality of the SSS flow void, and (4) laterality of the inferior\u2010most occipital lobe. TS cross\u2010sectional area was measured on noncontrast sagittal 2\u2010dimensional time\u2010of\u2010flight MRV images and served as the reference standard.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>RESULTS<\/jats:title>\n                    <jats:p>The bony groove for the SSS sloped down to the right in 65 of 100 patients and correctly predicted right TS dominance in 63 of 65 cases (97% positive predictive value [PPV]). The groove sloped down to the left in 24 of 100 patients and correctly predicted left TS dominance in 22 of 24 cases (92% PPV). Laterality of the SSS flow void, laterality of the inferior\u2010most occipital lobe, and angulation of the posterior falx had 91% PPV, 82% PPV, and 74% PPV for predicting TS dominance, respectively.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>CONCLUSIONS<\/jats:title>\n                    <jats:p>Multiple anatomic features seen on conventional axial T1WI can be used to predict the laterality of congenital TS dominance and can help inform the interpretation of MRV studies of the brain.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/jon.12457","type":"journal-article","created":{"date-parts":[[2017,7,19]],"date-time":"2017-07-19T08:10:42Z","timestamp":1500451842000},"page":"99-105","source":"Crossref","is-referenced-by-count":6,"title":["The Gibraltar Sign: An Anatomic Landmark for Predicting Transverse Sinus Dominance Laterality on Conventional MRI"],"prefix":"10.1111","volume":"28","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3123-1747","authenticated-orcid":false,"given":"David R.","family":"Pettersson","sequence":"first","affiliation":[{"name":"Department of Radiology Oregon Health &amp; Science University  Portland OR"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Joel D.","family":"McLouth","sequence":"additional","affiliation":[{"name":"School of Medicine Oregon Health &amp; Science University  Portland OR"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Benjamin","family":"Addicott","sequence":"additional","affiliation":[{"name":"Department of Radiology Oregon Health &amp; Science University  Portland OR"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jeffrey M.","family":"Pollock","sequence":"additional","affiliation":[{"name":"Department of Radiology Oregon Health &amp; Science University  Portland OR"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ramon F.","family":"Barajas","sequence":"additional","affiliation":[{"name":"Department of Radiology Oregon Health &amp; Science University  Portland OR"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2017,7,19]]},"reference":[{"key":"e_1_2_6_2_1","doi-asserted-by":"publisher","DOI":"10.1111\/head.12599"},{"key":"e_1_2_6_3_1","doi-asserted-by":"publisher","DOI":"10.1161\/STROKEAHA.107.509711"},{"key":"e_1_2_6_4_1","doi-asserted-by":"publisher","DOI":"10.1148\/rg.26si055174"},{"key":"e_1_2_6_5_1","first-page":"74","article-title":"Cerebral MR venography: normal anatomy and potential diagnostic pitfalls","volume":"21","author":"Ayanzen RH","year":"2000","journal-title":"AJNR Am J Neuroradiol"},{"key":"e_1_2_6_6_1","doi-asserted-by":"publisher","DOI":"10.1007\/s002340050575"},{"key":"e_1_2_6_7_1","doi-asserted-by":"publisher","DOI":"10.1002\/ca.20911"},{"key":"e_1_2_6_8_1","doi-asserted-by":"publisher","DOI":"10.3171\/jns.1985.62.1.0090"},{"key":"e_1_2_6_9_1","doi-asserted-by":"publisher","DOI":"10.1007\/BF00346857"},{"key":"e_1_2_6_10_1","first-page":"1557","article-title":"Intracranial MR venography in children: normal anatomy and variations","volume":"25","author":"Widjaja E","year":"2004","journal-title":"AJNR Am J Neuroradiol"},{"key":"e_1_2_6_11_1","doi-asserted-by":"publisher","DOI":"10.1159\/000079960"},{"key":"e_1_2_6_12_1","doi-asserted-by":"crossref","first-page":"290","DOI":"10.1007\/s12028-007-9032-0","article-title":"Venous sinus thrombosis: a misdiagnosis using MR angiography","volume":"8","author":"White JB","year":"2008","journal-title":"Neurocrit Care"},{"key":"e_1_2_6_13_1","doi-asserted-by":"publisher","DOI":"10.4103\/0019-5359.24677"},{"key":"e_1_2_6_14_1","first-page":"114","volume-title":"Imaging of the Brain","author":"Naidich TP","year":"2013"},{"key":"e_1_2_6_15_1","unstructured":"2016 Elsevier Limited New York S. 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