1 Department of Radiology, Yas complex Hospital, Tehran University of Medical Sciences, Tehran, Iran.
2 Department of Radiology, Advanced Diagnostic and Interventional Radiology Research Center (ADIR), Imam Khomeini Hospital, Tehran University of Medical Sciences, Tehran, Iran.
3 Department of Radiology, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran.
4 Department of Radiology, Amiralam Hospital, Tehran University of Medical Sciences, Tehran, Iran.