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Scand J Urol:阴性核磁共振成像作用研究

2019-01-21 AlexYang MedSci原创

是否具有前列腺癌疑似患者和阴性核磁共振成像(MRI)的患者能够安全地排除活检仍旧不清楚。最近,有研究人员评估了在排除前列腺癌情况下,MRI的临床阴性预测值(NPV)。主要终点为比较NPV来检测MRI显著性前列腺癌。次级结果为比较NPV来检测分类为 PI-RADS1和PI-RADS2的显著性前列腺癌。研究发现,有222(20%)个MRI案例没有靶向成像疑似区域,因此被记录为阴性测试:130(59%)

是否具有前列腺癌疑似患者和阴性核磁共振成像(MRI)的患者能够安全地排除活检仍旧不清楚。最近,有研究人员评估了在排除前列腺癌情况下,MRI的临床阴性预测值(NPV)。主要终点为比较NPV来检测MRI显著性前列腺癌。次级结果为比较NPV来检测分类为 PI-RADS1和PI-RADS2的显著性前列腺癌。

研究发现,有222(20%)个MRI案例没有靶向成像疑似区域,因此被记录为阴性测试:130(59%)为PI-RADS1以及92(41%)为PI-RADS2。在至少有1个临床活检核心检测到显著前列腺癌的比例在PI-RADS2组中要显著更高,9%(8/92)vs 3%(4/130)。在初次活检男性和PI-RADS2组中,NPV的显著疾病为95%,而在那些重复活检患者和PI-RADS1组中,NPV的值为99%。另外,NPV在初次活检患者中为84%,在重复活检患者中为95%。

最后,研究人员指出,PI-RADS2组不需要考虑阴性MRI。具有癌症临床疑似和MRI低疑似区域的患者中不能忽略活检,因为有错过明显肿瘤的可能。

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