Conventional CT scan the scan is taken slice by slice and after each slice the scan stops and moves down to the next slice eg, from the top of the abdomen down to the pelvis. This requires patients to hold their breath to avoid movement artefact. Spiral/helical CT scan this is a continuous scan which is taken in a spiral fashion. It is a much quicker process and the scanned images are contiguous.

OBJECTIVE To illustrate the utility of CT coronary angiography in the assessment of patients with anomalous coronary arteries. METHODS A 65-year-old woman who presented with a clinical history of unstable angina was investigated with both computerised tomography and invasive coronary angiography. RESULTS Coronary angiography demonstrated aberrant coronary arteries all arising from separate ...

There are internationally agreed optimal methods for developing clinical practice guidelines. The quality of published guidelines varies. A validated assessment instrument should be used to identify well developed guidelines that can be used with confidence. There are multiple ways of presenting guidelines, including computerised systems. Computerisation of guidelines can cover a range of forma...

COMPUTER CRIME, HIGH-TECH CRIME, AND COMPUTER FRAUD ARE ALL terms used to describe the involvement of computers in the commission of crime. Computers have become a common business and household item and come in the form of personal organisers, notebooks, laptops, desktops, networks, mini and mainframe computers. Computer technology has not introduced a new crime but has changed the form of trad...

Generally, computerised tomography (CT) is an X-ray based non-destructive testing method that was developed for medical purposes in the seventies and introduced for industrial applications during the eighties. CT produces maps of the X-ray linear attenuation coefficient of an object’s interior; presented either as cross section images (two-dimensional CT) or as volume information (three-dimensi...

This paper reports an ethnography of ambulance dispatch work in a large UK metropolitan region. The interplay between control centre ecology, usage of a computerised dispatch system, and cooperative work of control personnel is analysed. The methods by which a 'working division of labour' is sustained to effectively manage dispatch in the face of high workload and manifold contingency are expli...

BACKGROUND Major depression is a common mental health problem in the general population, associated with a substantial impact on quality of life and societal costs. However, many depressed patients in primary care do not receive the care they need. Reason for this is that pharmacotherapy is only effective in severely depressed patients and psychological treatments in primary care are scarce and...

in this paper an approach based on evolutionary algorithms to find pareto optimal pair of state and control for multi-objective optimal control problems (moocp)'s is introduced‎. ‎in this approach‎, ‎first a discretized form of the time-control space is considered and then‎, ‎a piecewise linear control and a piecewise linear trajectory are obtained from the discretized time-control space using ...