阴性预测值

CABS取6为筛查界线分更为理想，其特异性为0.91，敏感性为0.82、一致率为0.87、阳性预测值为0.88、阴性预测值为0.86，且3岁以上儿童使用优于3岁以下。

The best cut-off score of CABS was 6 , and its specificity , sensitivity , accuracy , PPV and NPV were 0.91 , 0.82 , 0.87 , 0.88 and 0.86 respectively . It was more effective for children over 3 years .

高频超声诊断小乳腺癌20例，敏感性87.0%，特异性87.1%，准确性87.0%，阳性预测值83.3%，阴性预测值90.0%。

Twenty of the 23 patients with breast cancer were diagnosed as small breast cancer by high-frequency ultrasonography . The sensitivity was 87.0 % , the specificity was 87.1 % , and the accuracy was 87.0 % . The PPV and NPV were 83.3 % and 90.0 % , respectively .

结果分析CT、MRI及PET三者敏感性、特异性、准确性、阳性预测值和阴性预测值，并进行比较，发现其敏感性和特异性均无显著性差异（P值分别为0.377和0.7）。

Results The sensibility and specificity between CT , MRI and PET were not significant discrepancy ( P value were 0.377 and 0.7 respectively ) by contrast analysis .

特异性IgE检测结果与临床诊断之间的符合率较高，阳性预测值均大于94%，阴性预测值均大于80%。

The positive and negative predictive values were greater than 94 % and 80 % respectively .

PCR诊断系统性白念珠菌病的敏感性、准确性及阴性预测值均高于培养法。

In evaluating diagnostic value of PCR for systemic Candida albicans infection , it was found that sensitivity , accuracy and negative prediction rate were superior to the conventional culture method .

常规CT检查诊断急性阑尾炎准确率38.5%，敏感性38.7%，特异性37.5%，阳性预测值70.6%，阴性预测值13.6%。

In contrast , conventional CT scanning yielded an accuracy of 38.5 % , sensitivity of 38.7 % , specificity of 37.5 % , positive predictive value of 70.6 % and negative predictive value of 13.6 % .

UE与PDI模式敏感度和阴性预测值间差异没有显著性（P0.05）。

With regard to sensitivity and negative predictive value , no significant differences were found between UE and PDI ( P0.05 ) .

而MRI对稳定斑块诊断敏感度和阴性预测值明显高于MDCT及超声检查，p0.01。

On the other hand , the sensitive and negative predictive value of MRI in detecting stable plaques were evidently also prior to MDCT and sonography .

CT对于Ⅱ度椎弓根螺钉的敏感度为100%，特异度为88%，阳性预测值为60%，阴性预测值为100%。

Whereas , for pedicle screw of grade ⅱ, CT had a positive predictive value of 60 % , a negative predictive value of 100 % , a sensitivity of 100 % and a specificity of 88 % .

CC和IIF法的阴性预测值为100%，而PCR和斑点杂交法分别为84.4%和83.3%。

The negative predictive values of CC and IIF were 100 % , and those of PCR and dot-blot hybridization were 84.4 % and 83.3 % respectively .

CRP诊断细菌性肠炎敏感度、特异度、准确度、阳性预测值及阴性预测值较PCT小。

The CRP diagnosis bacterium enteritis sensitivity , the peculiarity , the accuracy , the masculine forecast value and negative forecast value PCT is smaller .

本研究PET检测宫颈癌复发的敏感性和特异性分别为100%和93.1%。阳性和阴性预测值分别为81.8%和100%。

The sensitivity of FDG PET scan for detecting recurrent cervical cancer was 100 % , specificity of 93.1 % , positive predictive value of 81.8 % , and negative predictive value of 100 % .

PCR扩增法灵敏度为66.7%，特异度为33.3%，与参照标准的符合率为61.9%，阳性预测值为85.7%，阴性预测值为14.3%；

The sensitivity of PCR was 66.7 % , the specificity was 33.3 % , the coincidence rate was 61.9 % , the positive predicted value was 85.7 % , the negative predicted value was 14.3 % ;

CRP、GR%灵敏度、阳性预测值、阴性预测值及准确性相似，均高于WBC。

The sensitivity , positive predictive and negative predictive values , and accuracy of CRP were similar to those of GR % and higher than those of WBC .

结果45例垂体腺瘤中，MRI预测海绵窦侵袭的敏感性为60%，特异性为85%，阳性预测值为83%，阴性预测值为63%。

Results The sensitivity of MRI for predicting cavernous sinus invasion was 60 % , its specificity 85 % , its positive predictive value 83 % and negative predictive value 63 % in 45 patients with pituitary adenoma .

根据病理结果，按国外报道的方法计算SLN诊断胃癌淋巴结转移的准确性、敏感性、阴性预测值及假阴性率等。

The diagnostic accuracy , sensitivity , negative predictive value and false-negative rate were calculated according to definitions previously reported . 3 .

HR-HPV阴性预测值高，其检出率随宫颈病变级别的升高而增加。

The negative predictive value of HR-HPV was high , its detection rates increased with cervical lesion grades .

抗M3受体抗体对SS的敏感性和特异性分别为83.8%和97.5%，阳性预测值为95.7%，阴性预测值为90.0%。

{ 2 } Its sensitivity was 83.8 % and specificity was 97.5 % in SS with a positive predictive rate of 95.7 % and negative prediction rate of 90.0 % .

结果：MRI诊断ACL撕裂的敏感度为95.7%，特异度为85.7%，阳性预测值为88.5%，阴性预测值为94.7%。

Result : The sensitivity , specificity , positive predictive value and negative predictive value of MR diagnosis of ACL tears were 95.7 % , 85.7 % , 88.5 % and 94.7 % , respectively .

并计算双期CTA、3D-DSA诊断自发性蛛网膜下腔出血病因的敏感性、特异性、阳性预测值及阴性预测值。

The sensitivity , specificity , positive predictive value and negative predictive value of double-phase CTA and 3D-DSA in SHA were also calculated .

结果使用各参数估价重度MR的敏感性、特异性、阳性预测值和阴性预测值，以收缩期PVFRs分别为87%、93%、98%和70%；

Results For detecting the severe MR ( grade ⅲ ⅳ MR in left ventricular angiography ), the sensitivity , specificity , positive and negative predictive valves of the reversed pulmonary venous flow pattern were 87 % , 93 % , 98 % and 70 % , respectively ;

结果40层螺旋CT冠状动脉造影用于诊断冠状动脉中度以上狭窄的敏感性为84.3%，特异性为96%，阳性和阴性预测值分别为85.7%和95.5%。

Results By referring to routine angiography as gold standard , 40-slice CTA had a sensitivity rate of 84.3 % and specificity rate of 96 % in diagnosing narrow - ness severer than moderate , the positive and negative estimate was 85.7 % and 95.5 % respectively .

SLN判断结直肠癌区域淋巴结转移状态的准确率为91.7%，灵敏度为50%，阴性预测值为90.9%，假阴性率为8.3%。

The diagnostic accuracy , sensitivity , negative predictive value and false-negative rate were 91.7 % , 50 % , 90.9 % and 8.3 % , respectively .

结论IMA是早期区分ICP和NICP的敏感生化指标，对于发病6小时内的ICP诊断具有较高的敏感性和阴性预测值，与其它指标结合可进一步提高对ICP的诊断价值。

For diagnosis of ICP , IMA have higher sensitivity and negative predictive value within six hours , and combined with other markers can be further improved the diagnostic value of the ICP .

ROC曲线分析显示，cut-off值取140pg/ml时，BNP诊断EICU患者心功能不全的敏感度为92%，特异度为87%，阴性预测值为97%。

An ROC curve showed that BNP cutoff value at 140 pg / ml exhibited a 92 % sensitivity , 87 % specificity and 97 % negative predictive value .

上皮性卵巢癌患者血清SE一cad水平显著性升高，敏感性、特异性、阳性预测值、阴性预测值均达85%以上，可作为一种较好的肿瘤标志物进行应用。

The sensibility , specificity , positive prediction value and negative prediction value of sE-cad in diagnosis of epithelial ovarian carcinoma were all above 85 % . In a word , serum sE-cad could be used as tumor marker for epithelial ovarian carcinoma .

SE一ead的敏感性为88.57%、特异性为85.71%，阳性预测值为86.11%，阴性预测值为88.24%。

The sensibility , specificity , positive prediction value and negative prediction value of sE-cad in diagnosis of epithelial ovarian carcinoma were 88.57 % , 85.71 % , 86.11 % and 88.24 % .

结果16层螺旋CT冠脉造影用于诊断冠心病的敏感度为80.0%、特异度为91.4%、阳性预测值为77.4%、阴性预测值为92.6%、准确度为88.4%。

Results The sensitivity , specificity , positive predictive value , negative predictive value and accuracy of sixteen-slice spiral CT coronary angiography were 80 . 0 % , 91 . 4 % , 77 . 4 % , 92 . 6 % and 88 . 4 % , respectively .

内膜活检的灵敏度和特异度分别为96.3%和100%，阳性预测值100%，阴性预测值99.0%（ROC曲线下面积：0.999）。

As well , endometrial biopsy revealed sensitivity were 96.3 % , specificity 100 % , positive predictive value 100 % and negative predictive value 99 % ( ROC curve : 0.999 ) .

结果以关节镜检查结果作为标准。半月板损伤MRI诊断的准确率为85.4%，敏感性为92.1%，特异性为81.0%，阳性预测值为76.1%，阴性预测值为94.0%。

Results The accuracy of semilunar lateral injuries in MRI diagnosis was 85.4 % , the sensitivity and specificity of semilunar lateral injuries in MRI diagnosis was 92.1 % 、 81.0 % . positive predictive value was 76.1 % , negative predictive value was 94.0 % .