1. Neuroimaging and Analysis Group, Research Center for Molecular and Cellular Imaging, Tehran University of Medical Sciences, Tehran, Iran.
2. Department of Intracranial Endovascular Therapy, Alfried Krupp Krankenhaus Essen, Essen, Germany.
3. Medical Imaging Sciences Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
4. Department of Radiology, Washington University in St. Louis, St. Louis, MO.
5. Radiologic Technology Department, School of Allied Medical Sciences, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
6. Research Center for Molecular and Cellular Imaging, Tehran University of Medical Sciences, Tehran, Iran.
7. Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.