{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,21]],"date-time":"2026-02-21T13:31:14Z","timestamp":1771680674244,"version":"3.50.1"},"reference-count":10,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2012,5,14]],"date-time":"2012-05-14T00:00:00Z","timestamp":1336953600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["obgyn.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Ultrasound in Obstet &amp; Gyne"],"published-print":{"date-parts":[[2012,6]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Objective<\/jats:title><jats:p>To evaluate the role of the brainstem\u2013vermis (BV) and brainstem\u2013tentorium (BT) angles in the differential diagnosis of upward rotation of the fetal cerebellar vermis.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>The BV and BT angles were measured retrospectively on median sonographic views of the brain in 31 fetuses at 19\u201328 weeks' gestation with upward rotation of the cerebellar vermis due to Blake's pouch cyst (<jats:italic>n<\/jats:italic> = 12), Dandy\u2013Walker malformation (<jats:italic>n<\/jats:italic> = 12) and cerebellar vermian hypoplasia (<jats:italic>n<\/jats:italic> = 7). Eighty normal fetuses at 20\u201324 weeks were included as controls.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>In the control group, BV and BT angles were 9.1 \u00b1 3.5\u00b0 (range, 4\u201317\u00b0) and 29.3 \u00b1 5.8\u00b0 (range, 21\u201344\u00b0), respectively. The BV angle was significantly increased in each of the three subgroups of anomalies: Blake's pouch cyst (23 \u00b1 2.8\u00b0; range, 19\u201326\u00b0), vermian hypoplasia (34.9 \u00b1 5.4\u00b0; range, 24\u201340\u00b0) and Dandy\u2013Walker malformation (63.5 \u00b1 17.6\u00b0; range, 45\u2013112\u00b0), the angle increasing with increasing severity of the condition. The BT angle had a similar pattern but there was overlap among the different groups.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>The BV angle and, to a lesser degree, the BT angle are simple and reproducible measurements that provide valuable additional information for the categorization of upward rotation of the fetal cerebellar vermis. From mid gestation, a BV angle &gt; 45\u00b0 is strongly suggestive of a Dandy\u2013Walker malformation, while a measurement &lt; 30\u00b0 favors the diagnosis of a Blake's pouch cyst. Copyright \u00a9 2012 ISUOG. Published by John Wiley &amp; Sons, Ltd.<\/jats:p><\/jats:sec>","DOI":"10.1002\/uog.11101","type":"journal-article","created":{"date-parts":[[2012,1,17]],"date-time":"2012-01-17T19:29:38Z","timestamp":1326828578000},"page":"632-635","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":72,"title":["Brainstem\u2013vermis and brainstem\u2013tentorium angles allow accurate categorization of fetal upward rotation of cerebellar vermis"],"prefix":"10.1002","volume":"39","author":[{"given":"P.","family":"Volpe","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"E.","family":"Contro","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"F.","family":"De Musso","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"T.","family":"Ghi","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"A.","family":"Farina","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"A.","family":"Tempesta","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"G.","family":"Volpe","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"N.","family":"Rizzo","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"G.","family":"Pilu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2012,5,14]]},"reference":[{"key":"e_1_2_5_2_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00247-004-1316-3"},{"key":"e_1_2_5_3_2","doi-asserted-by":"publisher","DOI":"10.1093\/brain\/awp247"},{"key":"e_1_2_5_4_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1469-8749.2008.03224.x"},{"key":"e_1_2_5_5_2","doi-asserted-by":"publisher","DOI":"10.1002\/uog.11071"},{"key":"e_1_2_5_6_2","doi-asserted-by":"publisher","DOI":"10.1002\/uog.2777"},{"key":"e_1_2_5_7_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajog.2005.10.191"},{"key":"e_1_2_5_8_2","doi-asserted-by":"publisher","DOI":"10.1002\/pd.137"},{"key":"e_1_2_5_9_2","doi-asserted-by":"publisher","DOI":"10.7863\/jum.2007.26.1.83"},{"key":"e_1_2_5_10_2","doi-asserted-by":"publisher","DOI":"10.1002\/uog.2768"},{"key":"e_1_2_5_11_2","doi-asserted-by":"publisher","DOI":"10.1002\/pd.3834"}],"container-title":["Ultrasound in Obstetrics &amp; Gynecology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1002%2Fuog.11101","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/obgyn.onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/uog.11101","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,11,21]],"date-time":"2023-11-21T16:37:44Z","timestamp":1700584664000},"score":1,"resource":{"primary":{"URL":"https:\/\/obgyn.onlinelibrary.wiley.com\/doi\/10.1002\/uog.11101"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2012,5,14]]},"references-count":10,"journal-issue":{"issue":"6","published-print":{"date-parts":[[2012,6]]}},"alternative-id":["10.1002\/uog.11101"],"URL":"https:\/\/doi.org\/10.1002\/uog.11101","archive":["Portico"],"relation":{},"ISSN":["0960-7692","1469-0705"],"issn-type":[{"value":"0960-7692","type":"print"},{"value":"1469-0705","type":"electronic"}],"subject":[],"published":{"date-parts":[[2012,5,14]]},"assertion":[{"value":"2012-01-06","order":1,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2012-05-14","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}