Role of Diffusion Weighted MRI in Evaluation of Orbital Lesions
| Autor: | Ayman Farouk Soliman, Wafik Ebrahim Aly, Ayda Aly Yossef, Abdallah Elhusseiny Abdelgawwad, Mohammed Farouk Aggag |
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| Rok vydání: | 2020 |
| Předmět: |
medicine.diagnostic_test
business.industry Cut off value Significant difference Magnetic resonance imaging General Medicine Orbital lesion Mr imaging eye diseases body regions medicine.anatomical_structure medicine Effective diffusion coefficient sense organs business Nuclear medicine Diffusion MRI Orbit (anatomy) |
| Zdroj: | Al-Azhar International Medical Journal. |
| ISSN: | 2682-339X |
| DOI: | 10.21608/aimj.2020.22010.1053 |
| Popis: | Background: Orbital lesions represent a spectrum of benign and malignant lesions in adults and children that can be challenging to diagnose and treat. Magnetic resonance imaging is a powerful tool for imaging the orbit, due to the excellent tissue contrast it provides. Aim: To evaluate the ability of Diffusion-Weighted MRI in the characterization of the orbital lesions. Patients and methods: We evaluated 50 patients with 25 malignant and 25 benign orbital lesion. MR examinations were performed with a 1.5-T system. Diffusion-weighted single-shot EPI images were obtained in all patients. The apparent diffusion coefficient (ADC) was calculated and correlated with the pathology results. Results: The mean ADC value of benign and malignant orbital masses was 1.53 ± 0.61 x 10-3 mm2/s and 0.86 ± 0.35 x 10-3 mm2/s, respectively. There was a significant difference in the mean ADC value between benign and malignant orbital masses (P |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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