Dr.Yousif Hammad Hamdeen Hammad. Consultant Sonologist. - Bachelor (B.sc) of Science (Honors') in Radiodignostic Technology, SUST (Sudan University of Science and Technology, Sudan)- College of Medical Radiological Sciences. - Master (M.Sc)Degree in Medical Diagnostic Ultrasound, AAU (AL Zaeim Alazhari University, Sudan)- Faculty of Medicine in collaboration with Jefferson Ultrasound Research and Educational Institiute, Philadelphia- USA. - Doctorate (Ph.D) of Philosphy Degree in Medical Diagnostic Ultrasound, L.U.De.S University, Swiss.