The enhanced T2 star weighted angiography (ESWAN) value for differentiating borderline from malignant epithelial ovarian tumors
| Autor: | Ailian Liu, Mei-Yu Sun, Rui Fan, Lizhi Xie, Xu Han, Meng-Yao Wang, Dan Chen |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Receiver operating characteristic
medicine.diagnostic_test business.industry Fat suppression Value (computer science) General Medicine 030218 nuclear medicine & medical imaging Correlation 03 medical and health sciences 0302 clinical medicine 030220 oncology & carcinogenesis Angiography Medicine Radiology Nuclear Medicine and imaging Epithelial ovarian cancer Nuclear medicine business |
| Zdroj: | European Journal of Radiology. 118:187-193 |
| ISSN: | 0720-048X |
| DOI: | 10.1016/j.ejrad.2019.07.011 |
| Popis: | Purpose To investigate the potential of ESWAN in differentiating borderline epithelial ovarian tumors (BEOTs) from malignant epithelial ovarian tumors (MEOTs). Method Thirty-four patients with 37 lesions were enrolled, including 14 BEOTs and 23 MEOTs. The magnitude, phase, R2* and T2* maps were analyzed by two observers. The regions of interest were drawn along the boundaries of tumors on the slice with maximal solid area, according to fat suppression T2WI and T1WI. The consistency among the three measurements taken by two observers was tested by intra-class correlation coefficients. Agreement of average values measured by two observers was evaluated by Bland-Altman plots. All the data of BEOTs and MEOTs were compared using the independent-sample t test. The receiver operating characteristic curve was used to evaluate the diagnostic performance. Results No statistical differences were observed in the magnitude and phase values between two tumor groups. The R2* value of BEOTs was lower than that of MEOTs (P Conclusions R2* and T2* values can be used for quantificationally differentiating BEOTs from MEOTs and the R2* has better diagnostic performance. |
| Databáze: | OpenAIRE |
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