Technical Performance of Two-Dimensional Shear Wave Elastography for Measuring Liver Stiffness: A Systematic Review and Meta-Analysis
| Autor: | Chan Park, Junhee Pyo, Dong Wook Kim, Chong Hyun Suh, Kyung Won Kim, Seung Chai Jung |
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| Rok vydání: | 2019 |
| Předmět: |
Adult
Liver Cirrhosis Male Databases Factual Correlation coefficient Intraclass correlation 030218 nuclear medicine & medical imaging Young Adult 03 medical and health sciences Elasticity imaging techniques 0302 clinical medicine Liver stiffness Statistics Humans Medicine Radiology Nuclear Medicine and imaging Reliability (statistics) Ultrasonography Aged Aged 80 and over Shear wave elastography business.industry Reproducibility of Results Middle Aged Confidence interval Meta-analysis Technical performance Liver Research Design 030220 oncology & carcinogenesis Gastrointestinal Imaging Original Article Female business |
| Zdroj: | Korean Journal of Radiology |
| ISSN: | 2005-8330 1229-6929 |
| Popis: | Objective To assess the technical performance of two-dimensional shear wave elastography (2D-SWE) for measuring liver stiffness. Materials and methods The Ovid-MEDLINE and EMBASE databases were searched for studies reporting the technical performance of 2D-SWE, including concerns with technical failures, unreliable measurements, interobserver reliability, and/or intraobserver reliability, published until June 30, 2018. The pooled proportion of technical failure and unreliable measurements was calculated using meta-analytic pooling via the random-effects model and inverse variance method for calculating weights. Subgroup analyses were performed to explore potential causes of heterogeneity. The pooled intraclass correlation coefficients (ICCs) for interobserver and intraobserver reliability were calculated using the Hedges-Olkin method with Fisher's Z transformation of the correlation coefficient. Results The search yielded 34 articles. From 20 2D-SWE studies including 6196 patients, the pooled proportion of technical failure was 2.3% (95% confidence interval [CI], 1.3-3.9%). The pooled proportion of unreliable measurements from 20 studies including 6961 patients was 7.5% (95% CI, 4.7-11.7%). In the subgroup analyses, studies conducting more than three measurements showed fewer unreliable measurements than did those with three measurements or less, but no intergroup difference was found in technical failure. The pooled ICCs for interobserver reliability (from 10 studies including 517 patients) and intraobserver reliability (from 7 studies including 679 patients) were 0.87 (95% CI, 0.82-0.90) and 0.93 (95% CI, 0.89-0.95), respectively, suggesting good to excellent reliability. Conclusion 2D-SWE shows good technical performance for assessing liver stiffness, with high technical success and reliability. Future studies should establish the quality criteria and optimal number of measurements. |
| Databáze: | OpenAIRE |
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