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CT appearance and features of tubal pregnancy
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- Author:
- No author available
- Journal Title:
- CHINESE JOURNAL OF RADIOLOGY
- Issue:
- 6
- DOI:
- 10.3760/j.issn:1005-1201.2004.06.018
- Key Word:
- 妊娠,输卵管;体层摄影术,X线计算机
Abstract： 目的探讨输卵管妊娠的CT表现和特点.方法对38例临床怀疑为异位妊娠的患者进行超声检查和CT平扫、增强检查.其中34例手术及病理证实为输卵管妊娠.结果CT诊断输卵管妊娠的敏感度为97.06%,特异度为75.00%,准确度为94.73%.CT诊断输卵妊娠的直接征象为附件区包块内发现完整(4/34,11.8%)或变形的妊娠囊(14/34,41.2%);间接征像为附件区囊性包块中发现有可强化的异常密度影(8/34,23.5%);附件区混杂性包块,以实性成分为主,增强后呈轻、中度不均匀强化(19/34,55.9%);盆腔内子宫旁大片稍高密度影,无明显强化(3/34,8.8%);子宫直肠窝内可见血性密度影(23/34,67.6%).输卵管妊娠CT表现特点可归类为孕囊型(4/34,11.8%);囊肿型(8/34,23.5);包块型(17/34,50%);陈旧包块型(2/34,5.9%);出血型(3/34,8.8%).输卵管妊娠影像表现与妊娠部位有关;输卵管妊娠影像表现与临床症状有关.结论输卵管妊娠的CT表现有一定的特点,在盆腔肿块的诊断与鉴别诊断时可提供有力的帮助.对临床、B超诊断不肯定的患者,CT是有效的补充检查方法.
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