{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,22]],"date-time":"2026-07-22T06:33:04Z","timestamp":1784701984732,"version":"3.55.0"},"reference-count":14,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2026,2,12]],"date-time":"2026-02-12T00:00:00Z","timestamp":1770854400000},"content-version":"vor","delay-in-days":11,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"},{"start":{"date-parts":[[2026,2,1]],"date-time":"2026-02-01T00:00:00Z","timestamp":1769904000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["obgyn.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J of Obstet and Gynaecol"],"published-print":{"date-parts":[[2026,2]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    A 36\u2010year\u2010old woman underwent an elective cesarean section at 37\u2009weeks of gestation. A postoperative abdominal X\u2010ray unexpectedly revealed a 20\u2009mm hyperattenuating pelvic lesion. Computed tomography (CT) demonstrated a dense structure exceeding 3000 Hounsfield units with metallic\u2010like artifacts, suggesting a retained metallic object. Intraoperative video review and instrument count confirmed no missing items. Three\u2010dimensional CT reconstruction and open\u2010source artificial intelligence (AI)\u2013based shape analysis found no similarity to metallic instruments. Review of the patient's history revealed prior hysterosalpingography with oil\u2010based iodinated contrast medium. Retrospective assessment of prenatal magnetic resonance imaging (MRI) showed a cystic lesion with high signal intensity on T\n                    <jats:sub>1<\/jats:sub>\n                    \u2010 and T\n                    <jats:sub>2<\/jats:sub>\n                    \u2010weighted images, with signal suppression on fat\u2010suppressed T\n                    <jats:sub>1<\/jats:sub>\n                    \u2010weighted imaging, consistent with fatty components. The lesion was diagnosed as a pseudocyst due to residual contrast medium. This case demonstrates that oil\u2010based contrast can mimic metallic density, and that AI\u2010assisted three\u2010dimensional CT and MRI review can prevent unnecessary reoperation.\n                  <\/jats:p>","DOI":"10.1111\/jog.70203","type":"journal-article","created":{"date-parts":[[2026,2,12]],"date-time":"2026-02-12T23:10:11Z","timestamp":1770937811000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Residual Oil\u2010Based Contrast Medium Mimicking a Metallic Foreign Body After Cesarean Section: Diagnostic Value of\n                    <scp>AI<\/scp>\n                    \u2010Assisted\n                    <scp>3D CT<\/scp>\n                    Analysis and Prenatal\n                    <scp>MRI<\/scp>"],"prefix":"10.1111","volume":"52","author":[{"given":"Mizuho","family":"Fukuda","sequence":"first","affiliation":[{"name":"Department of Obstetrics and Gynecology, Graduate School of Medical Sciences Kanazawa University  Kanazawa Ishikawa Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kyosuke","family":"Kagami","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, Graduate School of Medical Sciences Kanazawa University  Kanazawa Ishikawa Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Iwao","family":"Yasoshima","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, Graduate School of Medical Sciences Kanazawa University  Kanazawa Ishikawa Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1885-6272","authenticated-orcid":false,"given":"Takashi","family":"Iizuka","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, Graduate School of Medical Sciences Kanazawa University  Kanazawa Ishikawa Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Saya","family":"Igarashi","sequence":"additional","affiliation":[{"name":"Department of Radiology, Kanazawa University Graduate School of Medical Sciences Kanazawa University  Kanazawa Ishikawa Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kaoru","family":"Abiko","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, Graduate School of Medical Sciences Kanazawa University  Kanazawa Ishikawa Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,2,12]]},"reference":[{"key":"e_1_2_10_2_1","doi-asserted-by":"publisher","DOI":"10.1056\/NEJMsa021721"},{"key":"e_1_2_10_3_1","doi-asserted-by":"publisher","DOI":"10.1148\/rg.246045065"},{"key":"e_1_2_10_4_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41598-024-69993-1"},{"key":"e_1_2_10_5_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.tranon.2020.01.003"},{"key":"e_1_2_10_6_1","doi-asserted-by":"publisher","DOI":"10.1097\/RLI.0000000000000578"},{"key":"e_1_2_10_7_1","doi-asserted-by":"publisher","DOI":"10.1007\/s10140-024-02222-4"},{"key":"e_1_2_10_8_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.radi.2022.01.001"},{"key":"e_1_2_10_9_1","doi-asserted-by":"publisher","DOI":"10.3390\/diagnostics14070668"},{"key":"e_1_2_10_10_1","doi-asserted-by":"publisher","DOI":"10.3390\/jcm12185841"},{"key":"e_1_2_10_11_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00330-024-10707-6"},{"key":"e_1_2_10_12_1","doi-asserted-by":"publisher","DOI":"10.1080\/09513590.2017.1307960"},{"issue":"1","key":"e_1_2_10_13_1","first-page":"1","article-title":"Oil Versus Aqueous Media for Hysterosalpingography: A Continuing Debate Based on Many Opinions and Few Facts","volume":"38","author":"Soules M. R.","year":"1982","journal-title":"Fertility and Sterility"},{"key":"e_1_2_10_14_1","doi-asserted-by":"publisher","DOI":"10.1002\/ccr3.5925"},{"key":"e_1_2_10_15_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.fertnstert.2018.03.021"}],"container-title":["Journal of Obstetrics and Gynaecology Research"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/obgyn.onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/jog.70203","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/obgyn.onlinelibrary.wiley.com\/doi\/full-xml\/10.1111\/jog.70203","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/obgyn.onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/jog.70203","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,3,9]],"date-time":"2026-03-09T00:02:58Z","timestamp":1773014578000},"score":1,"resource":{"primary":{"URL":"https:\/\/obgyn.onlinelibrary.wiley.com\/doi\/10.1111\/jog.70203"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,2]]},"references-count":14,"journal-issue":{"issue":"2","published-print":{"date-parts":[[2026,2]]}},"alternative-id":["10.1111\/jog.70203"],"URL":"https:\/\/doi.org\/10.1111\/jog.70203","archive":["Portico"],"relation":{},"ISSN":["1341-8076","1447-0756"],"issn-type":[{"value":"1341-8076","type":"print"},{"value":"1447-0756","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,2]]},"assertion":[{"value":"2025-10-27","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2026-02-03","order":2,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2026-02-12","order":3,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}],"article-number":"e70203"}}