{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,23]],"date-time":"2026-08-23T17:26:44Z","timestamp":1787506004767,"version":"build-2736575974"},"reference-count":23,"publisher":"Public Library of Science (PLoS)","issue":"8","license":[{"start":{"date-parts":[[2023,8,10]],"date-time":"2023-08-10T00:00:00Z","timestamp":1691625600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["www.plosone.org"],"crossmark-restriction":false},"short-container-title":["PLoS ONE"],"abstract":"\n Objective<\/jats:title>\n To predict the interspinous distance (ISD) using the relationship between female height and pelvimetric measures on magnetic resonance (MR) images.<\/jats:p>\n <\/jats:sec>\n \n Methods<\/jats:title>\n We obtained measurements of the pubic arch angle (PAA), inlet-anteroposterior (AP) distance, mid-pelvis AP distance, outlet-AP distance, ISD, and ischial tuberosity distance using 710 pelvic MR images from nonpregnant reproductive-aged (21\u201350 years) women from January 2014 to June 2020. Patient height was also assessed from medical records. We determined the formula for predicting ISD using multiple regression analysis.<\/jats:p>\n <\/jats:sec>\n \n Results<\/jats:title>\n \n The mean \u00b1 standard deviation of the height, PAA, inlet-AP distance, mid-pelvis AP distance, outlet-AP distance, ISD, and ischial tuberosity distance were 160.0 \u00b1 5.5 cm, 87.31 \u00b1 6.6\u00b0, 129.7 \u00b1 9.0 mm, 119.7 \u00b1 8.5 mm, 111.71 \u00b1 8.90 mm, 108.88 \u00b1 8.0 mm, and 121.97 \u00b1 11.8 mm, respectively. Two significant regression formulas for predicting ISD were identified as follows: ISD = 0.24973 \u00d7 height \u2212 0.06724 \u00d7 inlet-AP distance + 0.12166 \u00d7 outlet-AP distance + 0.29233 \u00d7 ischial tuberosity distance + 0.32524 \u00d7 PAA (\n P<\/jats:italic>\n < 0.001, R\n 2<\/jats:sup>\n = 0.9973 [adjusted R\n 2<\/jats:sup>\n = 0.9973]) and ISD = 0.40935 \u00d7 height + 0.49761 \u00d7 PAA (\n P<\/jats:italic>\n < 0.001, R\n 2<\/jats:sup>\n = 0.9965 [adjusted R\n 2<\/jats:sup>\n = 0.9965]).\n <\/jats:p>\n <\/jats:sec>\n \n Conclusion<\/jats:title>\n ISD is the best predictor of obstructed labor. This study predicted ISD with 99% explanatory power using only the height and PAA. The PAA can be measured by transperineal ultrasound. This formula may successfully predict vaginal delivery or cephalopelvic disproportion.<\/jats:p>\n <\/jats:sec>","DOI":"10.1371\/journal.pone.0289814","type":"journal-article","created":{"date-parts":[[2023,8,10]],"date-time":"2023-08-10T13:34:09Z","timestamp":1691674449000},"page":"e0289814","update-policy":"https:\/\/doi.org\/10.1371\/journal.pone.corrections_policy","source":"Crossref","is-referenced-by-count":6,"title":["Predicting mid-pelvic interspinous distance in women using height and pubic arch angle"],"prefix":"10.1371","volume":"18","author":[{"given":"Eun Duc","family":"Na","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Min Jung","family":"Baek","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ji Hyun","family":"Moon","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cho Won","family":"Park","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jin","family":"Yoon","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hanna","family":"Lee","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"So Hyeon","family":"Park","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7098-3768","authenticated-orcid":true,"given":"Ji Hyon","family":"Jang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"340","published-online":{"date-parts":[[2023,8,10]]},"reference":[{"key":"pone.0289814.ref001","first-page":"CD000161","article-title":"Pelvimetry for fetal cephalic presentations at or near term for deciding on mode of delivery","volume":"3","author":"RC Pattinson","year":"2017","journal-title":"Cochrane Database Syst Rev"},{"key":"pone.0289814.ref002","doi-asserted-by":"crossref","first-page":"527","DOI":"10.2214\/ajr.156.3.1899750","article-title":"CT pelvimetry: the foveae are not an accurate landmark for the level of the ischial spines","volume":"156","author":"D Aronson","year":"1991","journal-title":"AJR Am J Roentgenol"},{"key":"pone.0289814.ref003","doi-asserted-by":"crossref","first-page":"424","DOI":"10.1055\/a-0715-2122","article-title":"MR pelvimetry for breech presentation at term\u2013interobserver reliability, incidental findings and reference values","volume":"191","author":"A von Bismarck","year":"2019","journal-title":"Rofo"},{"key":"pone.0289814.ref004","doi-asserted-by":"crossref","first-page":"e0161028","DOI":"10.1371\/journal.pone.0161028","article-title":"New MRI criteria for successful vaginal breech delivery in primiparae","volume":"11","author":"J Hoffmann","year":"2016","journal-title":"PLoS One"},{"key":"pone.0289814.ref005","doi-asserted-by":"crossref","first-page":"387","DOI":"10.1097\/OGX.0b013e3181ecdf0c","article-title":"Assessing cephalopelvic disproportion: back to the basics","volume":"65","author":"D. 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