{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,14]],"date-time":"2026-05-14T11:25:02Z","timestamp":1778757902713,"version":"3.51.4"},"reference-count":32,"publisher":"Elsevier BV","license":[{"start":{"date-parts":[[2021,10,1]],"date-time":"2021-10-01T00:00:00Z","timestamp":1633046400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2021,10,1]],"date-time":"2021-10-01T00:00:00Z","timestamp":1633046400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/legal\/tdmrep-license"},{"start":{"date-parts":[[2021,10,1]],"date-time":"2021-10-01T00:00:00Z","timestamp":1633046400000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-017"},{"start":{"date-parts":[[2021,10,1]],"date-time":"2021-10-01T00:00:00Z","timestamp":1633046400000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-037"},{"start":{"date-parts":[[2021,10,1]],"date-time":"2021-10-01T00:00:00Z","timestamp":1633046400000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-012"},{"start":{"date-parts":[[2021,10,1]],"date-time":"2021-10-01T00:00:00Z","timestamp":1633046400000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-029"},{"start":{"date-parts":[[2021,10,1]],"date-time":"2021-10-01T00:00:00Z","timestamp":1633046400000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-004"}],"funder":[{"DOI":"10.13039\/100010727","name":"Axel Muusfeldts Fond","doi-asserted-by":"publisher","award":["2017\u2013831"],"award-info":[{"award-number":["2017\u2013831"]}],"id":[{"id":"10.13039\/100010727","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["clinicalkey.com","clinicalkey.com.au","clinicalkey.es","clinicalkey.fr","clinicalkey.jp","elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["Placenta"],"published-print":{"date-parts":[[2021,10]]},"DOI":"10.1016\/j.placenta.2021.08.057","type":"journal-article","created":{"date-parts":[[2021,8,24]],"date-time":"2021-08-24T11:18:13Z","timestamp":1629803893000},"page":"76-82","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":4,"special_numbering":"C","title":["Placental MRI: Longitudinal relaxation time (T1) in appropriate and small for gestational age pregnancies"],"prefix":"10.1016","volume":"114","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9824-4107","authenticated-orcid":false,"given":"Anna S.","family":"Andersen","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0866-6654","authenticated-orcid":false,"given":"Kristi B.","family":"Anderson","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ditte N.","family":"Hansen","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Marianne","family":"Sinding","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5141-0021","authenticated-orcid":false,"given":"Astrid C.","family":"Petersen","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"David A.","family":"Peters","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jens B.","family":"Fr\u00f8kj\u00e6r","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Anne","family":"S\u00f8rensen","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"78","reference":[{"key":"10.1016\/j.placenta.2021.08.057_bib1","doi-asserted-by":"crossref","first-page":"119","DOI":"10.1053\/plac.2002.0792","article-title":"Placental development in normal and compromised pregnancies - a review","volume":"23","author":"Regnault","year":"2002","journal-title":"Placenta"},{"issue":"6","key":"10.1016\/j.placenta.2021.08.057_bib2","doi-asserted-by":"crossref","first-page":"748","DOI":"10.1002\/uog.14917","article-title":"Placental magnetic resonance imaging T2\u2217 measurements in normal pregnancies and in those complicated by fetal growth restriction","volume":"47","author":"Sinding","year":"2016","journal-title":"Ultrasound Obstet. Gynecol."},{"issue":"1","key":"10.1016\/j.placenta.2021.08.057_bib3","first-page":"69","article-title":"MR imaging\u2013derived oxygen-hemoglobin dissociation curves and fetal-placental oxygen-hemoglobin affinities","volume":"280","author":"Reut","year":"2016","journal-title":"Radiology"},{"issue":"3","key":"10.1016\/j.placenta.2021.08.057_bib4","doi-asserted-by":"crossref","first-page":"258","DOI":"10.1002\/uog.1806","article-title":"Does antenatal identification of small-for-gestational age fetuses significantly improve their outcome?","volume":"25","author":"Lindqvist","year":"2005","journal-title":"Ultrasound Obstet. Gynecol."},{"issue":"2","key":"10.1016\/j.placenta.2021.08.057_bib5","doi-asserted-by":"crossref","first-page":"535","DOI":"10.1148\/radiology.150.2.6691115","article-title":"Sonographic estimation of fetal weight. The value of femur length in addition to head and abdomen measurements","volume":"150","author":"Hadlock","year":"1984","journal-title":"Radiology"},{"issue":"5","key":"10.1016\/j.placenta.2021.08.057_bib6","doi-asserted-by":"crossref","first-page":"551","DOI":"10.1002\/uog.14771","article-title":"Prediction of small-for-gestational-age neonates: screening by fetal biometry at 30-34 weeks","volume":"45","author":"Bakalis","year":"2015","journal-title":"Ultrasound Obstet. Gynecol."},{"issue":"4","key":"10.1016\/j.placenta.2021.08.057_bib7","doi-asserted-by":"crossref","first-page":"503","DOI":"10.1111\/aogs.13764","article-title":"Screening for small-for-gestational-age fetuses","volume":"99","author":"Hansen","year":"2020","journal-title":"Acta Obstet. Gynecol. Scand."},{"issue":"16","key":"10.1016\/j.placenta.2021.08.057_bib8","doi-asserted-by":"crossref","first-page":"1916","DOI":"10.1080\/14767058.2016.1232383","article-title":"Pregnancy outcome after false diagnosis of fetal growth restriction","volume":"30","author":"Gabbay-Benziv","year":"2017","journal-title":"J Matern Neonatal Med"},{"issue":"3","key":"10.1016\/j.placenta.2021.08.057_bib9","doi-asserted-by":"crossref","first-page":"293","DOI":"10.1002\/uog.20855","article-title":"T2*-weighted placental MRI: basic research tool or emerging clinical test for placental dysfunction?","volume":"55","author":"S\u00f8rensen","year":"2020","journal-title":"Ultrasound Obstet. Gynecol."},{"issue":"1","key":"10.1016\/j.placenta.2021.08.057_bib10","doi-asserted-by":"crossref","first-page":"197","DOI":"10.1016\/j.ogc.2019.10.009","article-title":"Placental magnetic resonance imaging: a method to evaluate placental function in vivo","volume":"47","author":"S\u00f8rensen","year":"2020","journal-title":"Obstet Gynecol Clin North Am"},{"issue":"3","key":"10.1016\/j.placenta.2021.08.057_bib11","doi-asserted-by":"crossref","first-page":"953","DOI":"10.1148\/radiol.2017162385","article-title":"Altered placental oxygenation fetal growth restriction 1","volume":"285","author":"Ingram","year":"2017","journal-title":"Radiology"},{"key":"10.1016\/j.placenta.2021.08.057_bib12","doi-asserted-by":"crossref","first-page":"151","DOI":"10.1016\/j.placenta.2016.01.016","article-title":"R1 changes in the human placenta at 3 T in response to a maternal oxygen challenge protocol","volume":"39","author":"Ingram","year":"2016","journal-title":"Placenta"},{"issue":"5","key":"10.1016\/j.placenta.2021.08.057_bib13","doi-asserted-by":"crossref","first-page":"1427","DOI":"10.1002\/mrm.24581","article-title":"R1 and R2* changes in the human placenta in response to maternal oxygen challenge","volume":"70","author":"Huen","year":"2013","journal-title":"Magn. Reson. Med."},{"issue":"13","key":"10.1016\/j.placenta.2021.08.057_bib14","doi-asserted-by":"crossref","first-page":"1588","DOI":"10.1111\/1471-0528.12804","article-title":"Absence of Po2 change in fetal brain despite Po2 increase in placenta in response to maternal oxygen challenge","volume":"121","author":"Huen","year":"2014","journal-title":"BJOG An Int. J. Obstet. Gynaecol."},{"issue":"3","key":"10.1016\/j.placenta.2021.08.057_bib15","doi-asserted-by":"crossref","first-page":"467","DOI":"10.1002\/mrm.1910400318","article-title":"In vivo perfusion measurements in the human placenta using echo planar imaging at 0.5 T","volume":"40","author":"Gowland","year":"1998","journal-title":"Magn. Reson. Med."},{"issue":"12","key":"10.1016\/j.placenta.2021.08.057_bib16","doi-asserted-by":"crossref","first-page":"1010","DOI":"10.1016\/j.placenta.2011.07.008","article-title":"Magnetic resonance imaging relaxation time measurements of the placenta at 1.5 T","volume":"32","author":"Wright","year":"2011","journal-title":"Placenta"},{"issue":"7","key":"10.1016\/j.placenta.2021.08.057_bib17","doi-asserted-by":"crossref","first-page":"539","DOI":"10.1016\/S0143-4004(98)91048-7","article-title":"The investigation of placental relaxation and estimation of placental perfusion using echo-planar magnetic resonance imaging","volume":"19","author":"Duncan","year":"1998","journal-title":"Placenta"},{"issue":"8","key":"10.1016\/j.placenta.2021.08.057_bib18","doi-asserted-by":"crossref","first-page":"613","DOI":"10.1016\/S0143-4004(97)90000-X","article-title":"Oxygen and placental villous development: origins of fetal hypoxia","volume":"18","author":"Kingdom","year":"1997","journal-title":"Placenta"},{"issue":"3","key":"10.1016\/j.placenta.2021.08.057_bib19","doi-asserted-by":"crossref","first-page":"333","DOI":"10.1016\/0002-9378(85)90298-4","article-title":"Estimation of fetal weight with the use of head, body, and femur measurement - a prospective study","volume":"151","author":"Hadlock","year":"1985","journal-title":"Am. J. Obstet. Gynecol."},{"issue":"7","key":"10.1016\/j.placenta.2021.08.057_bib20","doi-asserted-by":"crossref","first-page":"843","DOI":"10.1111\/j.1651-2227.1996.tb14164.x","article-title":"Intrauterine growth curves based on ultrasonically estimated foetal weights","volume":"85","author":"Mar\u0161\u00e1l","year":"1996","journal-title":"Acta Paediatr Int J Paediatr"},{"issue":"2","key":"10.1016\/j.placenta.2021.08.057_bib21","doi-asserted-by":"crossref","first-page":"128","DOI":"10.1002\/uog.5315","article-title":"Reference ranges for uterine artery mean pulsatility index at 11-41 weeks of gestation","volume":"32","author":"G\u00f3mez","year":"2008","journal-title":"Ultrasound Obstet. Gynecol."},{"issue":"13","key":"10.1016\/j.placenta.2021.08.057_bib22","doi-asserted-by":"crossref","first-page":"1251","DOI":"10.1002\/pd.1868","article-title":"Fetal arterial and venous Doppler pulsatility index and time averaged velocity ranges","volume":"27","author":"Parra-Cordero","year":"2007","journal-title":"Prenat. Diagn."},{"issue":"7","key":"10.1016\/j.placenta.2021.08.057_bib23","doi-asserted-by":"crossref","first-page":"698","DOI":"10.5858\/arpa.2015-0225-CC","article-title":"Sampling and definitions of placental lesions Amsterdam placental workshop group consensus statement","volume":"140","author":"Khong","year":"2016","journal-title":"Arch. Pathol. Lab Med."},{"issue":"2","key":"10.1016\/j.placenta.2021.08.057_bib24","doi-asserted-by":"crossref","first-page":"209","DOI":"10.1016\/S0143-4004(05)80457-6","article-title":"Placental morphogenesis and the star volumes of villous trees and intervillous pores","volume":"15","author":"Mayhew","year":"1994","journal-title":"Placenta"},{"issue":"1","key":"10.1016\/j.placenta.2021.08.057_bib25","doi-asserted-by":"crossref","first-page":"32","DOI":"10.1097\/00006254-198801000-00005","article-title":"Effect of gestational age on fetal and intervillous blood gas and acid base values in human pregnancy","volume":"43","author":"Soothill","year":"1988","journal-title":"Obstet. Gynecol. Surv."},{"issue":"2","key":"10.1016\/j.placenta.2021.08.057_bib26","doi-asserted-by":"crossref","first-page":"S745","DOI":"10.1016\/j.ajog.2017.11.577","article-title":"Pathophysiology of placental-derived fetal growth restriction","volume":"218","author":"Burton","year":"2018","journal-title":"Am. J. Obstet. Gynecol."},{"issue":"6","key":"10.1016\/j.placenta.2021.08.057_bib27","doi-asserted-by":"crossref","first-page":"2352","DOI":"10.1002\/mrm.26599","article-title":"Non-invasive evaluation of blood oxygen saturation and hematocrit from T1 and T2 relaxation times: in-vitro validation in fetal blood","volume":"78","author":"Portnoy","year":"2017","journal-title":"Magn. Reson. Med."},{"key":"10.1016\/j.placenta.2021.08.057_bib28","first-page":"934","article-title":"Placental transverse relaxation time (T2) estimated by MRI: normal values and the correlation with birthweight","author":"Anderson","year":"2020","journal-title":"Acta Obstet. Gynecol. Scand."},{"issue":"6","key":"10.1016\/j.placenta.2021.08.057_bib29","doi-asserted-by":"crossref","first-page":"474","DOI":"10.1016\/j.placenta.2013.03.005","article-title":"Association of placental T2 relaxation times and uterine artery Doppler ultrasound measures of placental blood flow","volume":"34","author":"Derwig","year":"2013","journal-title":"Placenta"},{"key":"10.1016\/j.placenta.2021.08.057_bib30","doi-asserted-by":"crossref","first-page":"48","DOI":"10.1016\/j.placenta.2016.11.009","article-title":"Prediction of low birth weight: comparison of placental T2* estimated by MRI and uterine artery pulsatility index","volume":"49","author":"Sinding","year":"2017","journal-title":"Placenta"},{"issue":"2","key":"10.1016\/j.placenta.2021.08.057_bib31","doi-asserted-by":"crossref","first-page":"293","DOI":"10.1080\/14767058.2017.1378334","article-title":"Assessment of human placental perfusion by intravoxel incoherent motion MR imaging","volume":"32","author":"Siauve","year":"2019","journal-title":"J Matern Neonatal Med"},{"key":"10.1016\/j.placenta.2021.08.057_bib32","doi-asserted-by":"crossref","first-page":"52","DOI":"10.1016\/j.placenta.2020.01.009","article-title":"Placental diffusion-weighted MRI in normal pregnancies and those complicated by placental dysfunction due to vascular malperfusion","volume":"91","author":"Kristi","year":"2020","journal-title":"Placenta"}],"container-title":["Placenta"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0143400421005671?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0143400421005671?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2025,9,26]],"date-time":"2025-09-26T18:05:00Z","timestamp":1758909900000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S0143400421005671"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,10]]},"references-count":32,"alternative-id":["S0143400421005671"],"URL":"https:\/\/doi.org\/10.1016\/j.placenta.2021.08.057","relation":{},"ISSN":["0143-4004"],"issn-type":[{"value":"0143-4004","type":"print"}],"subject":[],"published":{"date-parts":[[2021,10]]},"assertion":[{"value":"Elsevier","name":"publisher","label":"This article is maintained by"},{"value":"Placental MRI: Longitudinal relaxation time (T1) in appropriate and small for gestational age pregnancies","name":"articletitle","label":"Article Title"},{"value":"Placenta","name":"journaltitle","label":"Journal Title"},{"value":"https:\/\/doi.org\/10.1016\/j.placenta.2021.08.057","name":"articlelink","label":"CrossRef DOI link to publisher maintained version"},{"value":"article","name":"content_type","label":"Content Type"},{"value":"\u00a9 2021 Elsevier Ltd. All rights reserved.","name":"copyright","label":"Copyright"}]}}