1. Department of Vascular Surgery, Faculty of Medicine, Al-Azhar University, Cairo, EGYPT
2. Department of Radiology, Faculty of Medicine, Al-Azhar University, Cairo, EGYPT
3. Department of Neurology, Faculty of Medicine, Al-Azhar University, Cairo, EGYPT
4. Department of Neurosurgery, Faculty of Medicine, Al-Azhar University, Cairo, EGYPT
5. Department of Radiology Imaging Technology, Faculty of Applied Health Sciences, Misr University for Sciences and Technology, Cairo, EGYPT
6. Department of Radiodiagnosis & Intervention, Faculty of Medicine, Helwan University, Cairo, EGYPT