作者单位:‡Usman Institute of Technology, Karachi, Pakistan[1]§Consultant Radiologist, Radiology Department, JP Diagnostics and KIRAN Hospital, Karachi, Pakistan[2]†Department of Electronics Engineering, Faculty of Engineering, NED University of Engineering & Technology, Karachi, Pakistan[3]*Department of Telecommunication Engineering, Dawood University of Engineering and Technology, Karachi, Pakistan[4]