1. National MR Research Center (UMRAM), Bilkent University , 06800 Ankara , Turkey
2. Department of Engineering of Medical Instrumentation Techniques, Kut University College , Kut , Iraq
3. Biomedical Engineering Department, College of Engineering, Al-Nahrain University , Baghdad 10072 , Iraq
4. Electrical and Electronics Engineering Department, Graduate School of Natural Science, Ankara Yıldırım Beyazıt University , 06010 Ankara , Turkey