ABSTRACT
The computer data acquisition is relayed to a reconstructive system, and the digitalized image is viewed on the cathode ray tube viewing screen. Nuclear medicine imaging and real time ultrasonography are freely available in most modern institutions. Mediastinal tumours and infective processes, as well as small parenchymal, peripheral lung or pleural lesions are often not visible on a chest radiograph, but displayed by Computed tomography (CT), thus revealing the source of unexplained fever. Nuclear medicine scans with labelled leukocytes have been shown to be more than 90% accurate in the detection and localization of intra-abdominal inflammatory lesions, and may be the initial imaging procedure preferred. Occult liver, pancreas, splenic, renal, and retroperitoneal growth or abscesses may often be identified by nuclear medicine, CT, or magnetic resonance scans. The ease of renal assessment and the ability to demonstrate mass lesions such as abscesses, infected cysts, and tumour-invasion of the kidney is additionally reinforced by both CT and magnetic resonance imaging examination.
