{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,27]],"date-time":"2026-09-27T16:54:40Z","timestamp":1790528080272,"version":"4.1.0"},"reference-count":17,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2006,10,24]],"date-time":"2006-10-24T00:00:00Z","timestamp":1161648000000},"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":[[2006,11]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>Having studied intrapartum translabial ultrasound (ITU) to define easily obtainable sonographic criteria during maternal pushing, we used it dynamically immediately before vacuum extraction to determine its use in predicting successful operative vaginal delivery.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>In a pilot study, maternal and fetal landmarks were determined sonographically during maternal pushing from a mid\u2010sagittal translabial insonation using a curved array transducer in women delivering singleton fetuses in cephalic presentation spontaneously. With this transducer placed infrapubically (\u2018infrapubic plane\u2019), easily obtainable landmarks and signs were: (i) the \u2018infrapubic line\u2019, perpendicular to the long axis of the pubic joint and extending dorsally from its inferior margin in a mid\u2010sagittal plane, (ii) the widest fetal head diameter and its movement with regard to the infrapubic line during pushing, and (iii) the \u2018head direction\u2019 with respect to the long axis of the symphysis. A three\u2010dimensional reconstruction from a computed tomographic (CT) dataset of a normal female pelvis was then used to quantify accurately the spatial relationship between the infrapubic line and the anatomical landmarks. Finally, 20 pregnant women in spontaneous term labor with normal singleton fetuses in cephalic presentation and clinical indication for vacuum extraction were studied by ITU immediately before operative vaginal delivery.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>CT reconstruction demonstrated the infrapubic line to be 3 cm cranial to the parallel interspinous plane. Eleven of the 20 vacuum deliveries with the \u2018head\u2010up\u2019 sign (head pointing ventrally) and objective descent of the fetal head below the infrapubic line, both noted at the height of pushing, resulted in successful (\u2018simple\u2019 or \u2018moderately difficult\u2019) operative delivery. Lack of descent or lack of passage below the infrapubic line and horizontal or downward head direction were poor prognostic signs.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>ITU provides objective information on the dynamics of the second stage of labor, head station and head direction. ITU may be used to assess the prognosis for operative vaginal delivery. Copyright \u00a9 2006 ISUOG. Published by John Wiley &amp; Sons, Ltd.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/uog.3848","type":"journal-article","created":{"date-parts":[[2006,10,24]],"date-time":"2006-10-24T13:26:54Z","timestamp":1161696414000},"page":"753-760","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":215,"title":["Intrapartum translabial ultrasound (ITU): sonographic landmarks and correlation with successful vacuum extraction"],"prefix":"10.1002","volume":"28","author":[{"given":"W.","family":"Henrich","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"J.","family":"Dudenhausen","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"I.","family":"Fuchs","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"A.","family":"K\u00e4mena","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"B.","family":"Tutschek","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2006,10,24]]},"reference":[{"key":"e_1_2_6_2_2","doi-asserted-by":"publisher","DOI":"10.1056\/NEJM199912023412301"},{"key":"e_1_2_6_3_2","doi-asserted-by":"publisher","DOI":"10.1002\/uog.1765"},{"key":"e_1_2_6_4_2","first-page":"15","volume-title":"Williams Obstetrics","author":"Cunningham G","year":"2005"},{"key":"e_1_2_6_5_2","first-page":"269","article-title":"Ultrasound cystourethrography by perineal scanning for the assessment of female stress urinary incontinence","volume":"68","author":"Kohorn EI","year":"1986","journal-title":"Obstet Gynecol"},{"key":"e_1_2_6_6_2","doi-asserted-by":"publisher","DOI":"10.1055\/s-2007-1011937"},{"key":"e_1_2_6_7_2","doi-asserted-by":"publisher","DOI":"10.1002\/uog.2731"},{"key":"e_1_2_6_8_2","doi-asserted-by":"publisher","DOI":"10.1002\/uog.103"},{"key":"e_1_2_6_9_2","doi-asserted-by":"publisher","DOI":"10.1080\/jmf.10.4.283.286"},{"key":"e_1_2_6_10_2","doi-asserted-by":"publisher","DOI":"10.1046\/j.1469-0705.2002.00656.x"},{"key":"e_1_2_6_11_2","doi-asserted-by":"publisher","DOI":"10.1002\/uog.102"},{"key":"e_1_2_6_12_2","doi-asserted-by":"publisher","DOI":"10.1080\/jmf.12.3.172.177"},{"key":"e_1_2_6_13_2","doi-asserted-by":"publisher","DOI":"10.1080\/jmf.13.1.59.63"},{"key":"e_1_2_6_14_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ejogrb.2005.04.009"},{"key":"e_1_2_6_15_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajog.2004.12.011"},{"key":"e_1_2_6_16_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajog.2004.01.029"},{"key":"e_1_2_6_17_2","doi-asserted-by":"publisher","DOI":"10.1002\/uog.1065"},{"key":"e_1_2_6_18_2","doi-asserted-by":"publisher","DOI":"10.1055\/s-2007-993876"}],"container-title":["Ultrasound in Obstetrics &amp; Gynecology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1002%2Fuog.3848","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/obgyn.onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/uog.3848","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,10,7]],"date-time":"2023-10-07T04:39:43Z","timestamp":1696653583000},"score":1,"resource":{"primary":{"URL":"https:\/\/obgyn.onlinelibrary.wiley.com\/doi\/10.1002\/uog.3848"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2006,10,24]]},"references-count":17,"journal-issue":{"issue":"6","published-print":{"date-parts":[[2006,11]]}},"alternative-id":["10.1002\/uog.3848"],"URL":"https:\/\/doi.org\/10.1002\/uog.3848","archive":["Portico"],"relation":{},"ISSN":["0960-7692","1469-0705"],"issn-type":[{"value":"0960-7692","type":"print"},{"value":"1469-0705","type":"electronic"}],"subject":[],"published":{"date-parts":[[2006,10,24]]},"assertion":[{"value":"2006-09-10","order":1,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2006-10-24","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}