{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,1]],"date-time":"2026-10-01T02:28:30Z","timestamp":1790821710586,"version":"4.1.0"},"reference-count":50,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2020,11,12]],"date-time":"2020-11-12T00:00:00Z","timestamp":1605139200000},"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":["Prenatal Diagnosis"],"published-print":{"date-parts":[[2021,1]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Introduction<\/jats:title><jats:p>Prenatal work\u2010up for congenital diaphragmatic hernia (CDH) is important for risk stratification, standardization, counseling, and optimal therapeutic choice. To determine current practice patterns regarding prenatal CDH work\u2010up, including prenatal ultrasound and magnetic resonance imaging (MRI) use, and to identify areas for standardization of such evaluation between fetal centers.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>A survey regarding prenatal CDH work\u2010up was sent to each member center of the North American Fetal Therapy Network (NAFTNet) (n = 36).<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>All responded. Sonographic measurement of lung\u2010to\u2010head ratio (LHR) was determined by all, 89% (32\/36) of which routinely calculate observed\u2010to\u2010expected LHR. The method for measuring LHR varied: 58% (21\/36) used a \u201ctrace\u201d method, 25% (9\/36) used \u201clongest axis,\u201d and 17% (6\/36) used an \u201cantero\u2010posterior\u201d method. Fetal MRI was routinely used in 78% (28\/36) of centers, but there was significant variability in fetal lung volume measurement. Whereas all generated a total fetal lung volume, the planes, methodology and references values varied significantly. All evaluated liver position, 71% (20\/28) evaluated stomach position and 54% (15\/28) quantified the degree of liver herniation. More consistency in workup was seen between centers offering fetal intervention.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Prenatal CDH work\u2010up and management differs considerably among North American fetal diagnostic centers, highlighting a need for its standardization.<\/jats:p><\/jats:sec>","DOI":"10.1002\/pd.5859","type":"journal-article","created":{"date-parts":[[2020,10,30]],"date-time":"2020-10-30T15:35:08Z","timestamp":1604072108000},"page":"200-206","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":29,"title":["Prenatal assessment of congenital diaphragmatic hernia at north american fetal therapy network centers: A continued plea for standardization"],"prefix":"10.1002","volume":"41","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9301-0790","authenticated-orcid":false,"given":"Erin E.","family":"Perrone","sequence":"first","affiliation":[{"name":"Department of Surgery, Section 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