{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,2]],"date-time":"2026-06-02T11:29:38Z","timestamp":1780399778525,"version":"3.54.1"},"reference-count":12,"publisher":"FapUNIFESP (SciELO)","issue":"12","license":[{"start":{"date-parts":[[2025,1,1]],"date-time":"2025-01-01T00:00:00Z","timestamp":1735689600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2025,1,1]],"date-time":"2025-01-01T00:00:00Z","timestamp":1735689600000},"content-version":"am","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2025,1,1]],"date-time":"2025-01-01T00:00:00Z","timestamp":1735689600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Rev. Assoc. Med. Bras."],"abstract":"<jats:p>SUMMARY  OBJECTIVE: Cesarean scar pregnancy is a rare form of ectopic pregnancy in which the fertilized egg implants within the scar of a previous cesarean section. With the rising global cesarean delivery rate, the incidence of cesarean scar pregnancy has increased, posing serious risks such as massive hemorrhage and uterine rupture. To evaluate and compare the diagnostic and classification accuracy of transvaginal sonography and magnetic resonance imaging in the detection of cesarean scar pregnancy.  METHODS: This retrospective study included 102 patients clinically suspected of cesarean scar pregnancy between January 2023 and May 2024. All patients underwent both transvaginal sonography and magnetic resonance imaging. Using final clinical and pathological diagnoses as the reference standard, the sensitivity, overall diagnostic accuracy, and classification accuracy of transvaginal sonography and magnetic resonance imaging were compared.  RESULTS: Magnetic resonance imaging demonstrated significantly higher sensitivity, diagnostic accuracy, and classification accuracy than transvaginal sonography (p&lt;0.05). Compared with transvaginal sonography, magnetic resonance imaging also showed superior detection rates for intrauterine hemorrhage, villous invasion of the myometrium, and invasion of the bladder and\/or cervix, with statistically significant differences (p&lt;0.05).  CONCLUSION: Magnetic resonance imaging demonstrates superior diagnostic and classification accuracy compared to transvaginal sonography in evaluating cesarean scar pregnancy. As a valuable adjunct to ultrasound, magnetic resonance imaging facilitates more accurate diagnosis and individualized treatment planning, thereby reducing the risks of severe complications such as massive hemorrhage, hysterectomy, and maternal mortality in women of reproductive age.<\/jats:p>","DOI":"10.1590\/1806-9282.20250952","type":"journal-article","created":{"date-parts":[[2025,12,15]],"date-time":"2025-12-15T15:08:59Z","timestamp":1765811339000},"source":"Crossref","is-referenced-by-count":1,"title":["Comparative study of transvaginal ultrasound and magnetic resonance imaging in the diagnosis and classification of cesarean scar pregnancy"],"prefix":"10.1590","volume":"71","author":[{"ORCID":"https:\/\/orcid.org\/0009-0009-5861-7621","authenticated-orcid":false,"given":"Qinghu","family":"Li","sequence":"first","affiliation":[{"name":"Huazhong University of Science and Technology, Tongji Medical College,  China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0005-1697-9211","authenticated-orcid":false,"given":"Ao","family":"Yin","sequence":"additional","affiliation":[{"name":"Huazhong University of Science and Technology, Tongji Medical College,  China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0006-9141-0794","authenticated-orcid":false,"given":"Meng","family":"Zhang","sequence":"additional","affiliation":[{"name":"Huazhong University of Science and Technology, Tongji Medical College,  China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0008-0196-1782","authenticated-orcid":false,"given":"Sha","family":"Tian","sequence":"additional","affiliation":[{"name":"Huazhong University of Science and Technology, Tongji Medical College,  China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"530","published-online":{"date-parts":[[2025]]},"reference":[{"issue":"3","key":"ref1","doi-asserted-by":"crossref","first-page":"B9","DOI":"10.1016\/j.ajog.2022.06.024","article-title":"Electronic address: pubs@smfm.org. Society for maternal-fetal medicine consult series #63: cesarean scar ectopic pregnancy","volume":"227","author":"Miller R","year":"2022","journal-title":"Am J Obstet Gynecol"},{"issue":"3 Pt 2","key":"ref2","doi-asserted-by":"crossref","first-page":"563","DOI":"10.1016\/j.fertnstert.2023.07.018","article-title":"Cesarean scar ectopic pregnancy: nuances in diagnosis and treatment","volume":"120","author":"Lin R","year":"2023","journal-title":"Fertil Steril"},{"issue":"5","key":"ref3","doi-asserted-by":"crossref","first-page":"B2","DOI":"10.1016\/j.ajog.2020.01.030","article-title":"Society for Maternal-Fetal Medicine (SMFM) consult series #49: cesarean scar pregnancy","volume":"222","author":"Miller R","year":"2020","journal-title":"Am J Obstet Gynecol"},{"key":"ref4","first-page":"9714369","article-title":"Comparison of diagnostic efficacy among transvaginal sonography, transabdominal sonography, and 3.0 T magnetic resonance imaging in early cesarean scar pregnancy","volume":"2022","author":"Wang K","year":"2022","journal-title":"J Healthc Eng"},{"issue":"3","key":"ref5","doi-asserted-by":"crossref","first-page":"412","DOI":"10.1002\/uog.27604","article-title":"How to perform standardized sonographic examination of Cesarean scar pregnancy in the first trimester","volume":"64","author":"Verberkt C","year":"2024","journal-title":"Ultrasound Obstet Gynecol"},{"issue":"4","key":"ref6","doi-asserted-by":"crossref","first-page":"639","DOI":"10.1080\/14767058.2020.1743669","article-title":"The clinical and ultrasound-based comparison between cesarean scar pregnancy and other lower uterine segment pregnancies with a history of cesarean section","volume":"34","author":"Liu Z","year":"2021","journal-title":"J Matern Fetal Neonatal Med"},{"issue":"12","key":"ref7","doi-asserted-by":"crossref","DOI":"10.1371\/journal.pone.0243421","article-title":"Pregnancy outcomes after hysteroscopic surgery in women with cesarean scar syndrome","volume":"15","author":"Tsuji S","year":"2020","journal-title":"PLoS One"},{"issue":"7","key":"ref8","doi-asserted-by":"crossref","DOI":"10.1148\/rg.230199","article-title":"Cesarean scar ectopic pregnancy: a do-not-miss diagnosis","volume":"44","author":"Kennedy A","year":"2024","journal-title":"Radiographics"},{"key":"ref9","doi-asserted-by":"crossref","first-page":"102360","DOI":"10.1016\/j.bpobgyn.2023.102360","article-title":"Definition and diagnosis of cesarean scar ectopic pregnancies","volume":"89","author":"Nijjar S","year":"2023","journal-title":"Best Pract Res Clin Obstet Gynaecol"},{"issue":"6","key":"ref10","first-page":"6229","article-title":"The diagnostic value of 3.0T MRI in cesarean scar pregnancy","volume":"13","author":"Guo S","year":"2021","journal-title":"Am J Transl Res"},{"issue":"8","key":"ref11","doi-asserted-by":"crossref","first-page":"2672","DOI":"10.1007\/s00261-023-03953-7","article-title":"Scarred for life: a review of cesarean section scar pregnancy and potential pitfalls in diagnosis","volume":"48","author":"Huang J","year":"2023","journal-title":"Abdom Radiol (NY)"},{"issue":"23","key":"ref12","doi-asserted-by":"crossref","first-page":"7241","DOI":"10.3390\/jcm12237241","article-title":"MRI assessment of cesarean scar pregnancies: a case series","volume":"12","author":"Comune R","year":"2023","journal-title":"J Clin Med"}],"container-title":["Revista da Associa\u00e7\u00e3o M\u00e9dica Brasileira"],"original-title":[],"link":[{"URL":"http:\/\/www.scielo.br\/scielo.php?script=sci_pdf&pid=S0104-42302025001200616&tlng=en","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,12,15]],"date-time":"2025-12-15T15:09:01Z","timestamp":1765811341000},"score":1,"resource":{"primary":{"URL":"http:\/\/www.scielo.br\/scielo.php?script=sci_arttext&pid=S0104-42302025001200616&tlng=en"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025]]},"references-count":12,"journal-issue":{"issue":"12","published-online":{"date-parts":[[2025]]}},"alternative-id":["S0104-42302025001200616"],"URL":"https:\/\/doi.org\/10.1590\/1806-9282.20250952","relation":{},"ISSN":["1806-9282","0104-4230"],"issn-type":[{"value":"1806-9282","type":"electronic"},{"value":"0104-4230","type":"print"}],"subject":[],"published":{"date-parts":[[2025]]},"article-number":"e20250952"}}