The sensitivity of ultrasound was 93% and specificity was 100% with a positive predictive value of 100% and negative predictive value of 99% for the detection of haemothorax after trauma.
超声检查对创伤后血胸诊断的敏感性为93%，特异性为100%，阳性预测值为100%，阴性预测值为99%。
A multivariable threshold scoring system was able to discriminate fetuses with a biventricular outcome with 100% sensitivity and modest positive predictive value.
一个多变量阈值评分系统可以区分出双心室结局的胎儿，敏感性达100%，而阳性预测价值不大。
HPV DNA testing already has a poor positive predictive value, especially in younger girls, they point out, and the absolute number of true positive tests would decrease substantially in this scenario.
他们指出，HPVDNA检验的阳性预测值已经不高，特别是对年轻的女性，在这种情况下，真阳性检验的绝对数目将会显著降低。
While they identify greater risk in populations of patients, in most instances their positive predictive value is low with a lot of false positives.
当他们表明患者中的一部分人群有更高的危险时，通常其阳性预测值较低，且有很多假阳性。
Conclusion LBT is a sensitive and specific test for diagnosis of SLE. The high positive predictive value of LBT in SLE suggests that it is valuable in difficult cases of SLE.
结论LBT是SLE辅助诊断的敏感和特异的指标，而其较高的阳性预测值提示其在SLE疑难病例诊断中有重要价值。
Taking DSA as a golden standard, the sensitivity, specificity, positive predictive value, negative predictive value of carotid artery ultrasound was 91.07%, 63.64%, 86.44%, 73.68%, respectively.
以血管造影为诊断参照标准，超声诊断颈动脉粥样硬化的敏感性、特异性、阳性预测值、阴性预测值分别为91.07%、63.64%、86.44%和73.68%。
Taking DSA as a golden standard, the sensitivity, specificity, positive predictive value, negative predictive value of carotid artery ultrasound was 91.07%, 63.64%, 86.44%, 73.68%, respectively.
以血管造影为诊断参照标准，超声诊断颈动脉粥样硬化的敏感性、特异性、阳性预测值、阴性预测值分别为91.07%、63.64%、86.44%和73.68%。
应用推荐