Benign and malignant breast lesions identification through the values derived from shear wave elastography: evidence for the meta-analysis
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Yan Xue1, Shuxin Yao2, Xiaodong Li3 and Huarong Zhang1
1Department of Ultrasonography, Linyi People’s Hospital, Linyi City, Shandong Province 276000, China
2Department of Ultrasonography, Heze Municipal Hospital, Heze City, Shandong Province 274000, China
3Department of Radiology, Linyi People’s Hospital, Linyi City, Shandong Province 276000, China
Huarong Zhang, email: email@example.com
Keywords: shear wave elastography, diagnose, breast, meta-analysis
Received: April 12, 2017 Accepted: June 30, 2017 Published: September 21, 2017
Objective: The analysis was aimed to evaluate the diagnostic accuracy of shear wave elastography (SWE) for malignant breast lesions through a meta-analysis.
Materials and Methods: Related articles were searched in databases of Pubmed, Embase and Cochrane library. Overall sensitivity and specificity were analyzed with DerSimonian and Laird random effects model. Area under curve (AUC) with corresponding 95% confidence interval were also analyzed to evaluate the diagnostic accuracy of SWE. P value < 0.05 predicted the significant heterogeneity between study. Sensitivity and publication bias were assessed as well.
Results: According to the inclusion criteria, 25 articles were selected. In the subgroup analysis, diagnostic sensitivity and specificity of SWE in Asian population were 0.84 (0.79–0.88) and 0.87 (0.84–0.90), respectively, while they were 0.92 (0.86–0.96) and 0.89 (0.84–0.92) in Caucasian population. The diagnostic accuracy of SWE was a little higher for Caucasians than for Asians (0.95 vs. 0.92). The diagnostic sensitivity and specificity of virtual touch tissue quantification (VTTQ) were 0.85 (0.77–0.91) and 0.93 (0.88–0.96), respectively. It showed a little higher value in specificity and summary receiver operating curve (sROC) than that of SWE (0.93 vs. 0.87; 0.95 vs. 0.93). In addition, maximum stiffness exhibited higher detection sensitivity than that of mean stiffness (0.91 vs. 0.85).
Conclusions: SWE serves as an accurate diagnostic technology for discriminating malignant and benign breast lesions.
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