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- Title
Sonoelastography for differential diagnosis between malignant and benign parotid lesions: a meta-analysis.
- Authors
Zhang, Yun-Fei; Li, Hong; Wang, Xue-Mei; Cai, Yun-Fei
- Abstract
<bold>Objectives: </bold>To assess the performance of sonoelastography for differential diagnosis between malignant and benign parotid lesions using a meta-analysis.<bold>Methods: </bold>An independent literature search of English medical databases, such as PubMed, Embase and Medline ( Embase.com ), Web of Science, Cochrane Library and Ovid was performed. The diagnostic accuracy of sonoelastography was compared with that of histopathology and/or cytology, which was used as reference standard. The pooled sensitivity, specificity, diagnostic odds ratio (DOR) and area under the curve (AUC) were calculated to evaluate the accuracy of sonoelastography. A meta-regression analysis evaluating imaging mechanisms, shear wave elastography techniques, assessment methods and QUADAS scores was performed.<bold>Results: </bold>Ten eligible studies that included a total sample of 711 patients with 725 parotid lesions were included. Sonoelastography showed a pooled sensitivity of 0.67 (95% CI 0.59-0.74), specificity of 0.64 (95% CI 0.60-0.68), DOR of 8.00 (95% CI 2.96-21.63) and an AUC of 0.77. The results of the meta-regression analysis revealed that no heterogeneity was due to the imaging mechanism (p = 0.119), shear wave elastography technique (p = 0.473) or QUADAS score (p = 0.462). However, the assessment method was a significant factor that affected the study heterogeneity (p = 0.035). According to the subgroup analysis, quantitative and semiquantitative methods performed better than qualitative ones.<bold>Conclusion: </bold>Overall, sonoelastography has a limited value for differential diagnosis between malignant and benign parotid lesions. Quantitative and semiquantitative methods perform better than qualitative ones.<bold>Key Points: </bold>• Overall, sonoelastography has a limited value for differential diagnosis between malignant and benign parotid lesions. • Quantitative and semiquantitative assessment methods perform better than qualitative ones. • Semiquantitative and quantitative methods are automatically calculated by an ultrasound machine and are thus less operator-dependent.
- Subjects
ULTRASONIC imaging; PAROTID glands; MEDICAL care; ELASTOGRAPHY; META-analysis
- Publication
European Radiology, 2019, Vol 29, Issue 2, p725
- ISSN
0938-7994
- Publication type
journal article
- DOI
10.1007/s00330-018-5609-6