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In 4 patients, sonography showed an unclear endometrium, absence of an endometrium\u2010myometrium interface, a well\u2010vascularized hyperechoic lesion in the uterine body with a low resistive index, and myometrial thinning near the lesion. In 2 patients, contrast\u2010enhanced sonography showed rapid irregular lesion enhancement. Chemotherapy reduced the lesions in 3 patients, and a decreased blood supply increased the resistive index in all lesions. Two patients each underwent hysterectomy and uterine curettage. The fifth patient had a cervical pregnancy; sonography showed a well\u2010vascularized hyperechoic lesion in an enlarged cervix. Methotrexate gradually reduced this lesion. Sonography, especially contrast\u2010enhanced sonography, can detect placenta accreta and guide treatment.<\/jats:p>","DOI":"10.7863\/ultra.32.8.1509","type":"journal-article","created":{"date-parts":[[2013,7,25]],"date-time":"2013-07-25T17:24:23Z","timestamp":1374773063000},"page":"1509-1514","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Sonographic Features of Placenta Accreta After First\u2010Trimester 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