Faculty of Science

Objectives

To deal with the role of computers in the acquisition of data in medical imaging systems: e.g., CT scanners, digital angiography and gamma cameras. Special attention is paid to the interface requirements of each device.

Contents

Interconnection of memory, CPU and peripherals, Transmission line theory, data busses, hardware and protocol aspects of local area networks (LAN); Signal processing in gamma cameras, memory increment versus list mode data acquisition; Double buffering, EKG gating, matrix compaction, memory requirements; CT scanners. Geometrical considerations; Signal processing, logarithmic amplifiers; Dealing with data from many detectors; A-D conversion; Data acquisition; Dual ported memories; Throughput and storage requirements; On-line processing of data; Digital angiographic systems; Frame grabbing; TV digitisers; Signal processing; Image and overlay memories; Look-up tables; Writing and reading small areas, interactive devices; Trade-offs in dedicated displays versus workstations; Signal encoding, coincidence detection, data flow.