ObjectiveTo systematically review the diagnostic value of ultrasound for breast cancer with axillary sentinel lymph nodes, so as to provide evidence for clinical decision-making. MethodsWe searched the databases including PubMed, EMbase, The Cochrane Library (Issue 12, 2013), CBM, CNKI, WanFang Data and VIP for studies about ultrasound in the diagnosis of breast cancer with axillary sentinel lymph nodes till December 31st, 2013. According to the inclusion and exclusion criteria, literature was screened, data were extracted, and methodological quality of the included studies was evaluated. Meta-analysis was then conducted using Meta-Disc 1.4 software. ResultsA total of 12 studies involving 2 188 cases were included. The pooled results of meta-analysis showed that sensitivity and specificity were 0.75 (95%CI 0.72 to 0.77) and 0.91 (95%CI 0.89 to 0.92), respectively; positive likelihood ratio and negative likelihood ratio were 6.54 (95%CI 4.68 to 8.89) and 0.22 (95%CI 0.15 to 0.33), respectively; diagnostic odds ratio was 33.59 (95%CI 17.87 to 63.12); and the AUC was 0.934 3. ConclusionUltrasound is has relatively high value in diagnosis of breast cancer with axillary sentinel lymph nodes. However, due to the influence caused by the limited quality and various potential heterogeneity, more high quality RCTs with large sample size are needed to further verify the above conclusion.
目的 探讨诱导痰、痰、血清中的白介素(IL)-4、-6、-8在慢性支气管炎急性期的浓度阈值，确定其诊断意义，了解三种白介素在三种标本中的不同浓度对诊断慢性支气管炎急性期的意义。 方法 2001年1月-8月对77例慢性反复咳嗽患者按全国慢性支气管炎诊断标准确诊慢性支气管炎急性期48例，非慢性支气管炎29例，进行IL-4、-6、-8的诱导痰、痰、血清检测。采用受试者工作特征曲线(ROC曲线)鉴定三种白介素对三种标本的诊断价值。 结果 ①三种标本的三种白介素的诊断比值比(DOR)均＞3，95%可信区间的下限均＞1。②ROC曲线下面积显示：诱导痰及痰中IL-4、-8之间无差别(P＞0.05)，IL-4和IL-8分别与IL-6之间有统计学意义(P＜0.05)；血清中IL-4、-6、-8检测结果无差异(P＞0.05)。IL-4、-8的诱导痰及痰与血清有统计学意义(P＜0.05)，IL-6的诱导痰、痰、血清之间无差异(P＞0.05)。 结论 诱导痰及痰中的IL-4、-8诊断价值较好，可用于慢性支气管炎急性期的诊断。
Objective To evaluate the diagnostic value of antikeratin antibody (AKA) for rheumatoid arthritis (RA). Methods Systematic and comprehensive literature was searched in PubMed (1966 to June 2010), The Cochrane Library (Issue 6, 2010), CBM (1978 to June 2010), CNKI (1994 to June 2010), VIP (1989 to June 2010), and CMA Digital Periodicals (1997 to June 2010). The diagnosis studies of antikeratin antibody for rheumatoid arthritis were included. The quality assessment of diagnostic accuracy studies (QUADAS) items were used to assess the quality of the included studies. The Meta-Disc (version 1.4) software was used to analyze the data. Results A total of 69 trials involving 14 890 participants were included. The results of meta-analyses showed that compared with the RA classification criteria revised by American Rheumatism Association (ARA), the summary sensitivity, specificity, positive likelihood ratio, negative likelihood ratio, OR value, and summary receiver operating characteristic curve of antikeratin antibody were 0.41 (0.39, 0.42), 0.94 (0.94, 0.95), 9.52 (7.21, 12.57), 0.63 (0.60, 0.66), 15.24 (11.62, 19.98), and 0.613 6, respectively. Conclusion Antikeratin antibody might be one of the most effective diagnoses for rheumatoid arthritis. The clinicians should combine other autoantibodies with AKA to diagnose rheumatoid arthritis.
Objective To evaluate the diagnostic accuracy of enzyme immunoassay (EIA) for chlamydia trachomatis (CT). Methods The diagnosis trials on EIA for CT were searched in the databases such as PubMed (1966 to Dec. 2011), The Cochrane Library (Issue 12, 2011), EMbase (1974 to Dec. 2011), CNKI (1994 to Dec. 2011), VIP (1989 to Dec. 2011) and CBM (1978 to Dec. 2011), meanwhile the manual and other retrieves were also conducted. Two reviewers evaluated the quality of the included trials according to the quality assessment of diagnostic accuracy studies (QUADAS), and then meta-analysis was performed using Meta Analyst and RevMan 5.0 software. Results A total of 17 trials involving 9 461 participants were included. The results of meta-analysis showed that the weighted sensitivity, specificity, positive likelihood ratio, negative likelihood ratio, diagnostic odds ratio, and the area under SROC curve were 0.847 (95%CI 0.571 to 0.995), 0.964 (95%CI 0.890 to 0.994), 25.972 (95%CI 18.587 to 36.293), 0.156 (95%CI 0.114 to 0.212), 228.875 (95%CI 127.136 to 412.028), and 0.953, respectively. Conclusion EIA for CT has higher sensitivity and specificity, so EIA is recommended for preliminary screening CT and diagnosing the highly suspected cases or the patients without obvious signs and symptoms.
ObjectivesTo systematically review clinical values of multi-slice spiral computed tomography angiography (MSCTA) in diagnosis of chest pain triple (CPT).MethodsPubMed, EMbase, The Cochrane Library, Web of Science, CNKI, CBM, VIP and WanFang Data databases were searched to collect diagnostic tests on CPT diagnosed by MSCTA from inception to October 2017. Two reviewers independently screened literature, extracted data, and assessed the risk of bias of the included studies. Meta-analysis was performed by Stata 12.0 software. The pooled weighted Sen, Spe, +LR, -LR, and the DOR were calculated, SROC and AUC were drawn.ResultsA total of 11 diagnostic studies were included. The results of meta-analysis showed that the pooled Sen, Spe, +LR, -LR, DOR and AUC of MSCTA for diagnosing CPT were 0.95 (95%CI 0.91 to 0.98), 0.97 (95%CI 0.94 to 0.98), 31.24 (95%CI 15.63 to 62.43), 0.05 (95%CI 0.02 to 0.10), 659.04 (95%CI 236.73 to 1 834.71) and 0.99 (95%CI 0.98 to 1.00), respectively.ConclusionsMSCTA has high sensibility and specificity for diagnosing CPT. Due to limited quantity and quality of the included studies, more high-quality studies are required to verify the above conclusion.
ObjectiveTo systematic review the diagnostic value of magnetic resonance (MR) for pulmonary embolism (PE).MethodsWe electronically searched databases including EMbase, PubMed, The Cochrane Library, WanFang Data and CNKI from inception to November 2016, to collect the diagnostic studies about MR in the diagnosis of PE. Two reviewers independently screened literature according to the inclusion and exclusion criteria, extracted data, and assessed the risk of bias of included studies, and then meta-analysis was conducted using Stata 12.0 software.ResultsA total of 14 studies involving 1 042 patients were included. The pooled Sen, Spe, +LR, –LR and DOR were 0.90 (95%CI 0.83 to 0.94), 0.95 (95%CI 0.90 to 0.98), 19.8 (95%CI 8.5 to 46.1), 0.10 (95%CI 0.06 to 0.18), 189 (95%CI 69 to 521), respectively. The AUC of SROC were 0.97 (95%CI 0.95 to 0.98).ConclusionMR has a good diagnosis value for PE which can be regarded as an effective and feasible method for suspected PE patients, especially for those who has contraindication of computed tomographic pulmonary angiography.
Objective To evaluate the diagnostic value of vascular endothelial growth factor (VEGF)-D detection for the diagnosis of lymphangioleiomyomatosis (LAM) by Meta-analysis. Methods Literatures published before August 2017 were retrieved from PubMed, Embase, China Biology Medicine database, China National Knowledge Internet, Wangfang, and VIP database to retrieve the study about VEGF-D detection for LAM. The studies were screened according to the inclusive and exclusive criteria, the data were extracted, the quality was assessed and the Meta-analysis was performed with related statistical software. Results Six primary studies were included and 521 patients met the inclusion criterion. The Meta-analysis showed the pooled sensitivity, specificity, positive likelihood ratio, negative likelihood ratio and diagnostic odds ratio of 0.75 [95% confidence interval (CI) (0.70, 0.79)], 0.95 [95%CI (0.91, 0.98)], 16.20 [95%CI (8.70, 30.19)], 0.20 [95%CI (0.10, 0.40)] and 89.49 [95%CI (38.46, 208.22)], respectively. The area under the curve was 0.953 9. Conclusions VEGF-D detection showes a good diagnostic value for LAM. A positive result is more clinical meaningful compared with a negative result, helping for the confirmation of the disease.
ObjectiveTo evaluate the diagnostic value of interferon-gamma release assay (TB-IGRA) for tuberculosis in the Tibetan. MethodsFrom January 2014 to December 2014, suspected Tibetan tuberculosis patients were enrolled from AVIC 363 Hospital and underwent TB-IGRA test. All patients were also underwent smear test for Mycobacteria. The diagnostic value of TB-IGRA test for Tibetan TB patients was analyzed. ResultsA total of 77 suspected Tibetan tuberculosis patients were included. According to the diagnostic criteria, of the 77 suspected patients, 50 were diagnosed as TB patients, and 27 were diagnosed as not-TB patients. The sensitivity and specificity of TB-IGRA test was 86% and 81.5%. While the sensitivity and specificity of smear test were 22% and 100%, respectively. ConclusionThe TB-IGRA test is superior to smear test, and is the fast and sensitivity test for diagnosing Tibetan TB patients.
ObjectivesTo evaluate the accuracy of liver cancer screening techniques to inform screening intervention and early diagnosis.MethodsWe searched PubMed, The Cochrane Library, EMbase, Web of Science, CNKI, WanFang Data, CBM, VIP databases to collect relevant diagnostic accuracy studies of screening technologies for liver cancer from January 1980 to December 2017. Two reviewers independently screened the literature, extracted the data and assessed the risk of bias of included studies. Then meta-analysis was performed by using Meta-Disc 1.4 software.ResultsA total of 54 publications with 47 728 individuals were included. In terms of pooled sensitivity from the meta-analysis, it was estimated as 0.71 (95%CI 0.70 to 0.72), 0.57 (95%CI 0.56 to 0.59) and 0.43 (95%CI 0.41 to 0.45); the pooled specificity was estimated as 0.92 (95%CI 0.92 to 0.93), 0.95 (95%CI 0.94 to 0.96) and 0.95 (95%CI 0.94 to 0.96); the pooled positive likelihood ratio was 5.65 (95%CI 4.37 to 7.30), 13.24(95%CI 4.25 to 41.22) and 11.39 (95%CI 4.01 to 32.35); the pooled negative likelihood ratio was 0.35 (95%CI 0.31 to 0.39), 0.38 (95%CI 0.29 to 0.52) and 0.49 (95%CI 0.39 to 0.62); the diagnosis odds ratio was 17.23 (95%CI 12.26 to 24.20), 33.79 (95%CI 12.65 to 90.24) and 24.41(95%CI 9.23 to 64.53) for AFP alone with cut-off of 20, 200 and 400 ng/mL, respectively. The pooled sensitivity, specificity, positive likelihood ratio, negative likelihood ratio and diagnosis odds ratio were 0.65 (95%CI 0.62 to 0.69), 0.97 (95%CI 0.97 to 0.97), 16.48 (95%CI 9.55 to 28.42), 0.27 (95%CI 0.18 to 0.42) and 64.54 (95%CI 30.16 to 138.11) for ultrasound examination alone. The pooled sensitivity, specificity, positive likelihood ratio, negative likelihood ratio and diagnosis odds ratio were 0.96 (95%CI 0.94 to 0.98), 0.96 (95%CI 0.96 to 0.96), 10.76 (95%CI 2.62 to 44.27), 0.07 (95%CI 0.02 to 0.22) and 160.59 (95%CI 31.61 to 816.03) for the combined strategy.ConclusionFor liver cancer screening technologies, the overall accuracy of serum AFP test alone is the optimum at cut-off of 20 ng/mL, and the sensitivity increased substantially when combined with ultrasound examination.