| Autor: |
Wessam Abdelrahman Elzayat, Mona El-Kalioubie, Manar Magdy Abdel-Naby, Raafat Ragaie Abdel-Malek |
| Jazyk: |
angličtina |
| Rok vydání: |
2017 |
| Předmět: |
|
| Zdroj: |
The Egyptian Journal of Radiology and Nuclear Medicine, Vol 48, Iss 4, Pp 1159-1169 (2017) |
| Druh dokumentu: |
article |
| ISSN: |
0378-603X |
| DOI: |
10.1016/j.ejrnm.2017.05.003 |
| Popis: |
Objectives: To evaluate the diagnostic accuracy of dynamic contrast enhanced magnetic resonance imaging (DCE-MRI) in characterization of inconclusive ovarian tumors, with histologic findings as the reference standard. Patients & methods: DCE-MRI was done in 30 patients with 32 complex ovarian masses, prior to surgical excision. We analyzed the following kinetic parameters: enhancement amplitude (EA) in the form of MRE%, time to peak in the form of T max and maximal slope (MS) and correlated them with histopathology. Results: DCE-MRI showed higher overall accuracy (96%) and specificity (100%) than conventional MRI. Malignant masses showed higher MRE% than benign (p = .004) or borderline masses (p = .036). A shorter T max was found in malignant compared to benign (p = .0002) and borderline (p = .049) masses. MS was best at discrimination between benign, borderline and malignant tumors. Finally, Type III curve showed 100% specificity for invasive malignant tumors. Conclusion: DCE-MRI sequence is a helpful adjunct to conventional MRI for discrimination of inconclusive ovarian masses into benign, borderline and invasive malignant tumors. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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