Abstract
Aim: To differentiate Warthin tumors (WTs) and pleomorphic adenomas (PAs) measuring heterogeneity of intravoxel incoherent motion (IVIM) and dynamic-contrast enhanced-magnetic resonance imaging biomarkers. Methods: Volumes of interest were traced on 18 WT and 18 PA in 25 patients. For each IVIM and dynamic-contrast enhanced biomarker, histogram parameters were calculated and then compared using the Wilcoxon-signed-rank test. Receiver operating characteristic curves and multivariate analysis were employed to identify the parameters and their pairs with the best accuracy. Results: Most of the biomarkers exhibited significant difference (p < 0.05) between PA and WT for histogram parameters. Time to peak median and skewness, and D∗ median and entropy showed the highest area under the curve. No meaningful improvement of accuracy was obtained using two features. Conclusion: IVIM and dynamic-contrast enhanced histogram descriptors may help in the classification of WT and PA.
Original language | English |
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Pages (from-to) | 763-778 |
Number of pages | 16 |
Journal | Future Oncology |
Volume | 16 |
Issue number | 12 |
DOIs | |
Publication status | Published - Apr 2020 |
Keywords
- DCE-MRI
- DW-MRI
- histogram
- intravoxel incoherent motion
- magnetic resonance
- parotid tumors
- pleomorphic adenoma
- volume of interest
- Warthin tumor
ASJC Scopus subject areas
- Oncology
- Cancer Research