Dr Mahmoud H. Milad is a Libyan radiologist with more than 25 years of experience in practicing radiology, teaching and training medical students and residents in the faculty of medicine at Sebha University and in the radiology department of Sebha Medical Center. He is the head of the radiology department of Sebha Medical Center and an Associate Professor of radiology in the faculty of medicine at Sebha University. His research interests are Ultrasonography, Computerized Tomography and medical education. Dr Abdalla M. Gamal is a Sudanese senior house officer in the radiology department of Sebha Medical Center and is one of Dr Mahmoud's students. He is interested in research, medical writing and medical education and he has strong passion for teaching and conducting research. His research interests are mainly Ultrasonography and Computerized Tomography.