本文選題：血管前置　切入點(diǎn)：磁共振成像　出處：《臨床放射學(xué)雜志》2017年04期 　論文類型：期刊論文

【摘要】：目的探討MRI在血管前置診斷中的價(jià)值。方法對(duì)臨床病理證實(shí)的7例血管前置的MRI表現(xiàn)進(jìn)行回顧性分析,其中2例為雙胎妊娠。圖像分析以SSFSE T_2WI和抑脂F(xiàn)SE T_2WI序列軸位和矢狀位為主,重點(diǎn)觀察宮頸內(nèi)口上方及其周圍的異常臍血管結(jié)構(gòu)及其走行,并注意胎盤位置及變異情況。結(jié)果 7例MRI檢查均于胎先露與宮頸內(nèi)口間見(jiàn)一根或數(shù)根異常走行的臍血管。7例均存在胎盤低置或前置,以及帆狀胎盤、球拍狀胎盤或副胎盤變異。其中,合并血管前置的胎盤變異有帆狀胎盤4例,球拍狀胎盤1例,副胎盤2例。雙胎妊娠均為帆狀胎盤血管前置。結(jié)論 MRI在血管前置的產(chǎn)前診斷上發(fā)揮著重要的作用,尤其是在臨床懷疑而超聲診斷不明,或當(dāng)超聲提示帆狀胎盤、多胎妊娠、胎盤低置時(shí),應(yīng)常規(guī)行MRI檢查以除外血管前置。
[Abstract]:Objective to evaluate the value of MRI in the diagnosis of vascular preposition. Methods the MRI findings of 7 cases of vascular preposition confirmed by clinical pathology were retrospectively analyzed. Among them, 2 cases were twin pregnancy. The main image analysis was SSFSE T2WI and FSE T2WI sequence axial and sagittal position. The abnormal umbilical cord blood vessel structure and its course were observed on and around the cervical internal orifice. Results one or more abnormal umbilical cord blood vessels were found in 7 cases of placenta placenta, placenta previa, and placenta sails on MRI examination. There were 4 cases of placental variation associated with vascular previa and 1 case of racket placenta. Conclusion MRI plays an important role in the prenatal diagnosis of vascular previa, especially in clinical suspected and unknown ultrasound diagnosis, or when ultrasound suggests that sails placenta and multiple pregnancy. When placenta is low, MRI examination should be performed routinely to exclude the preposition of blood vessels.
【作者單位】： 廣東省婦幼保健院放射科;
【分類號(hào)】：R445.2;R714.5

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