EEC 462 Biological Imaging Systems Exam 2022

About this paper

EEC 462: A 2-page First Semester Examination for Biomedical Imaging Systems (EEC462), University of Buea College of Technology, Dept of Electrical and Electronic Engineering, instructors Ateuafack/Kengnou, Credit 4, February 2021/2022, 2 hours. Part One (elective, Generalities): definitions of image/biomedical image/imaging/bio-imaging/imaging systems, telemedicine, SPECT/PET significance, a generic medical imaging block diagram, conventional vs intelligent transducer representations, the 3 biomedical transducer groups with examples, identification of 3 labelled transducer circuit diagrams (photovoltaic cell, photoconductive cell with excitation, photoconductive cell with modulated light), physical transducer types, the typical ultrasound transducer and its group, ultrasound imaging modes, and ultrasound boundary-interaction summary. Part Two (elective, Technology): 3 imaging technologies, diagnostic x-ray/radiography, x-ray machine parts/types/working, 4 other x-ray imaging techniques, x-ray generation principles, x-ray/matter interaction types, the photoelectric effect, the transmittance/optical-density relationship, and four calculations (exposure from optical density and film gamma; maximum ultrasound scan-line length from PRP; piezoelectric disc thickness from velocity and frequency; focal zone length from f-number and wavelength). Part Three (compulsory, Maintenance): maintenance types, x-ray equipment care recommendations, x-ray machine defaults and fixes, the three stages of an x-ray preventive-maintenance visit, and ultrasound equipment defaults and fixes.