{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,10]],"date-time":"2026-06-10T10:50:34Z","timestamp":1781088634069,"version":"3.54.1"},"reference-count":24,"publisher":"FapUNIFESP (SciELO)","issue":"7","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Arq. Neuro-Psiquiatr."],"abstract":"<jats:p>ABSTRACT Platybasia and basilar invagination are important alterations of the cranial-vertebral transition. Neuroimaging-based platybasia parameters include the Welcker basal angle, distance between the apex of the odontoid and Chamberlain\u2019s line, and the clivus-canal angle. This study aimed to measure and correlate these parameters in a sample from northeast Brazil.  Methods  Cross-sectional analysis of craniometric parameters from individuals submitted to magnetic resonance at an outpatient imaging center between 2011 and 2012.  Results  Of 181 analyzed cases, the Welcker basal angle averaged 128.96\u00ba (SD 6.51), median distance between apex of the odontoid and Chamberlain\u2019s line was 2.27 mm (IQR -1.23\u20134.47) and the median clivus-canal angle was 150.5\u00ba (IQR 143.2\u2013157.3). The Welcker basal angle was inversely correlated to the clivus-canal angle, and correlated to the distance between the apex of the odontoid and Chamberlain\u2019s line.  Conclusion  There was a tendency to platibasia, basilar invagination and narrowing of the cranio-vertebral transition.<\/jats:p>","DOI":"10.1590\/0004-282x20170071","type":"journal-article","created":{"date-parts":[[2017,7,19]],"date-time":"2017-07-19T14:18:12Z","timestamp":1500473892000},"page":"419-423","source":"Crossref","is-referenced-by-count":16,"title":["Cranio-vertebral transition assessment by magnetic resonance imaging in a sample of a northeast Brazilian population"],"prefix":"10.1590","volume":"75","author":[{"given":"Heitor Cabral","family":"Frade","sequence":"first","affiliation":[{"name":"Universidade Federal da Para\u00edba,  Brasil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Caio C\u00e9sar Nuto Leite","family":"Fran\u00e7a","sequence":"additional","affiliation":[{"name":"Universidade Federal da Para\u00edba,  Brasil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jos\u00e9 Jailson Costa do","family":"Nascimento","sequence":"additional","affiliation":[{"name":"Universidade Federal da Para\u00edba,  Brasil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maurus Marques de Almeida","family":"Holanda","sequence":"additional","affiliation":[{"name":"Universidade Federal da Para\u00edba,  Brasil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Eul\u00e2mpio Jos\u00e9 da","family":"Silva Neto","sequence":"additional","affiliation":[{"name":"Universidade Federal da Para\u00edba,  Brasil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Severino Aires","family":"Ara\u00fajo Neto","sequence":"additional","affiliation":[{"name":"Universidade Federal da Para\u00edba,  Brasil"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"530","published-online":{"date-parts":[[2017,7]]},"reference":[{"issue":"2","key":"ref1","doi-asserted-by":"crossref","first-page":"255","DOI":"10.1148\/radiographics.14.2.8190952","article-title":"Craniovertebral junction: normal anatomy, craniometry, and congenital anomalies","volume":"14","author":"Smoker WR","year":"1994","journal-title":"Radiographics"},{"issue":"2","key":"ref2","first-page":"100","article-title":"Craniovertebral junction: normal anatomy and craniometry","volume":"3","author":"Amaral DT","year":"2004","journal-title":"Coluna\/Columna"},{"issue":"1","key":"ref3","first-page":"84","article-title":"Cerebello-pontine angle syndrome associated with cranio-vertebral malformation: report of two cases","volume":"30","author":"Silva AB","year":"1972","journal-title":"Arq Neuropsiquiatr"},{"issue":"3","key":"ref4","doi-asserted-by":"crossref","first-page":"363","DOI":"10.1590\/S0004-282X1994000300013","article-title":"Achados cir\u00fargicos em 260 casos de impress\u00e3o basilar","volume":"52","author":"Silva JA","year":"1994","journal-title":"Arq Neuropsiquiatr"},{"issue":"2B","key":"ref5","doi-asserted-by":"crossref","first-page":"368","DOI":"10.1590\/S0004-282X2003000300009","article-title":"Basilar impression, Chiari malformation and syringomyelia: a retrospective study of 53 surgically treated patients","volume":"61","author":"Silva JA","year":"2003","journal-title":"Arq Neuropsiquiatr"},{"issue":"4","key":"ref6","doi-asserted-by":"crossref","first-page":"1370","DOI":"10.4067\/S0717-95022011000400050","article-title":"Comparative study of the cephalic index of the population from the regions of north and south of Brazil","volume":"29","author":"Alves HA","year":"2011","journal-title":"Int J Morphol"},{"issue":"3","key":"ref7","doi-asserted-by":"crossref","first-page":"314","DOI":"10.1590\/s1679-45082014ao2933","article-title":"Metric analysis of basal sphenoid angle in adult human skulls","volume":"12","author":"Netto DS","year":"2014","journal-title":"Einstein"},{"key":"ref8","author":"Nascimento JJ","year":"2014"},{"key":"ref9","series-title":"Politicamente correto e direitos humanos","author":"Queiroz AC","year":"2004"},{"key":"ref10","series-title":"An\u00e1lise das anormalidades de desenvolvimento na popula\u00e7\u00e3o pr\u00e9-hist\u00f3ria do S\u00edtio Furna do Estrago, Pernambuco","author":"Carvalho OA","year":"1995"},{"issue":"4","key":"ref11","doi-asserted-by":"crossref","first-page":"603","DOI":"10.1007\/s10143-013-0471-0","article-title":"Angular craniometry in craniocervical junction malformation","volume":"36","author":"Botelho RV","year":"2013","journal-title":"Neurosurg Rev"},{"issue":"5","key":"ref12","first-page":"487","article-title":"Basilar impression (platybasia): a bizarre developmental anomaly of the occipital bone and upper cervical spine with striking and misleading neurologic manifestations","volume":"11","author":"Chamberlain WE","year":"1939","journal-title":"Yale J Biol Med"},{"issue":"2","key":"ref13","doi-asserted-by":"crossref","first-page":"281","DOI":"10.1097\/00000441-193608000-00030","article-title":"The radiology of bones and joints","volume":"192","author":"Brailsford JF","year":"1936","journal-title":"Am J Med Sci"},{"issue":"244","key":"ref14","doi-asserted-by":"crossref","first-page":"171","DOI":"10.1259\/0007-1285-21-244-171","article-title":"The significance of certain measurements of the skull in the diagnosis of basilar impression","volume":"21","author":"McGregor M","year":"1948","journal-title":"Br J Radiol"},{"key":"ref15","first-page":"81","article-title":"Basilar impression: its causes and consequences","volume":"1","author":"Boogard JA","year":"1865","journal-title":"Nederl Tysdschr v Geneesk Tweede"},{"issue":"4","key":"ref16","doi-asserted-by":"crossref","first-page":"577","DOI":"10.1001\/archneurpsyc.1941.02280160009001","article-title":"Neurologic syndromes accompanying developmental anomalies of occipital bone, atlas and axis","volume":"45","author":"List CF","year":"1941","journal-title":"Arch Neurol Psychiatry"},{"key":"ref17","first-page":"449","article-title":"Basilar invagination of the skull (so-called platybasia): report of a case with operation","author":"Walsh MN","year":"1941","journal-title":"Mayo Clin Proc"},{"issue":"134","key":"ref18","first-page":"1241","article-title":"Platybasia, basilar groove, odontoid process and kinking of the brainstem: a common etiology with idiopathic syringomyelia, scoliosis and Chiari malformations","volume":"24","author":"Royo-Salvador MB","year":"1996","journal-title":"Rev Neurol"},{"issue":"4","key":"ref19","doi-asserted-by":"crossref","DOI":"10.3171\/2015.1.FOCUS14642","article-title":"Computed tomography evaluation of the normal craniocervical junction craniometry in 100 asymptomatic patients","volume":"38","author":"Batista UC","year":"2015","journal-title":"Neurosurg Focus"},{"issue":"3","key":"ref20","doi-asserted-by":"crossref","first-page":"235","DOI":"10.4103\/0028-3886.53260","article-title":"Basilar invagination, Chiari malformation, syringomyelia: a review","volume":"57","author":"Goel A","year":"2009","journal-title":"Neurol India"},{"issue":"3","key":"ref21","doi-asserted-by":"crossref","first-page":"39","DOI":"10.1227\/01.NEU.0000365770.10690.6F","article-title":"Basilar invagination","volume":"66","author":"Smith JS","year":"2010","journal-title":"Neurosurgery"},{"issue":"9","key":"ref22","doi-asserted-by":"crossref","first-page":"706","DOI":"10.1590\/0004-282X20140113","article-title":"Incidence of basilar invagination in patients with tonsillar herniation? A case control craniometrical study","volume":"72","author":"Joaquim AF","year":"2014","journal-title":"Arq Neuropsiquiatr"},{"key":"ref23","series-title":"Malforma\u00e7\u00f5es occipitocervicais: impress\u00e3o basilar, malforma\u00e7\u00e3o de Chiari, siringomielia, platibasia","first-page":"169","volume-title":"Impress\u00e3o Basilar","author":"Silva JAG","year":"2003"},{"issue":"4","key":"ref24","doi-asserted-by":"crossref","first-page":"523","DOI":"10.1007\/s00381-010-1358-9","article-title":"Embryology and bony malformations of the craniovertebral junction","volume":"27","author":"Pang D","year":"2011","journal-title":"Childs Nerv Syst"}],"container-title":["Arquivos de Neuro-Psiquiatria"],"original-title":[],"link":[{"URL":"http:\/\/www.scielo.br\/pdf\/anp\/v75n7\/0004-282X-anp-75-07-0419.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2018,4,14]],"date-time":"2018-04-14T15:00:50Z","timestamp":1523718050000},"score":1,"resource":{"primary":{"URL":"http:\/\/www.scielo.br\/scielo.php?script=sci_arttext&pid=S0004-282X2017000700419&lng=en&tlng=en"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2017,7]]},"references-count":24,"journal-issue":{"issue":"7","published-online":{"date-parts":[[2017,7]]}},"alternative-id":["S0004-282X2017000700419"],"URL":"https:\/\/doi.org\/10.1590\/0004-282x20170071","relation":{},"ISSN":["1678-4227","0004-282X"],"issn-type":[{"value":"1678-4227","type":"electronic"},{"value":"0004-282X","type":"print"}],"subject":[],"published":{"date-parts":[[2017,7]]}}}