Radiology:急性阑尾炎用CT好还是MRI好?

2018-05-23 shaosai MedSci原创

本研究旨在比较磁共振(MR)成像和计算机体层成像(CT)在诊断急性阑尾炎的诊断价值,并将结果发表在Radiology上。

本研究旨在比较磁共振(MR)成像和计算机体层成像(CT)在诊断急性阑尾炎的诊断价值,并将结果发表在Radiology上。

本研究纳入了急诊室(ED)因疑有急性阑尾炎的患者,患者年龄超过12岁且均为妊娠,对患者进行CT和MT检查除外急性阑尾炎。由3名放射科医生在未知患者临床诊断的情况下对图像进行评价。对CT和MR图像进行5分评价来判断急性阑尾炎的可能性。以手术、组织病理学结果和临床随访作为综合参考标准。

结果为,共纳入了198例患者(114 [58%]例女性,平均年龄为31.6岁± 14.2,发病率为32.3%)。当以评分≥3作为最佳截断值时,MR成像的敏感性和特异性分别为96.9% (95% CI: 88.2%, 99.5%)、81.3% (95% CI: 73.5%, 87.3%),而CT的敏感性和特异性分别为98.4% (95% CI: 90.5%, 99.9%) 、89.6% (95% CI: 82.8%, 94.0%)。MR成像的阳性预测值和阴性预测值分别为5.2 (95% CI: 3.7, 7.7)、0.04 (95% CI: 0, 0.11),而CT的阳性预测值和阴性预测值分别为9.4 (95% CI: 5.9, 16.4)、0.02 (95% CI: 0.00, 0.06)。ROC曲线表明最佳截断值设定为4时能够将准确率最大化,此时两者之间无统计学差异。

本研究表明,MR成像诊断急性阑尾炎的效能与CT相似。

原始出处:

Repplinger MD, Pickhardt PJ, Robbins JB. et al.Prospective Comparison of the Diagnostic Accuracy of MR Imaging versus CT for Acute Appendicitis.Radiology.DOI:10.1148/radiol.2018171838

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    2018-08-02 1237cdb8m17暂无昵称

    学习了,谢谢

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    2018-05-25 半夏微凉

    学习了谢谢分享

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    2018-05-24 1209e435m98(暂无昵称)

    学习了.谢谢分享

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    2018-05-24 cscdliu

    学习了.谢谢

    0

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