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| Author | Danika Maria Attard |
| Abstract | Owing to the proliferation of new types of CT scanners, it has become necessary to produce a list of recommendations to help local radiology managers when choosing new CT devices. The purpose of this project was to survey the literature regarding imaging device performance indicators appropriate for sequential and multi-slice spiral CT devices with respect to image quality outcomes and to describe CT device design factors which have an impact on these performance indicators. This would ensure that recommendations are evidence-based. The databases used for this literature search included the Cinahl Database and the Medline Database (Pubmed), whilst the key words related to the subject area included computed tomography, spiral CT, multi-slice CT, image quality and performance indicators. A particularly important resource for this project was the ImPACT Scan (Imaging Performance Assessment of CT Scanners) site. The study demonstrated that multi-slice spiral CT is superior to sequential CT due to improved transverse and axial spatial resolution, increased volume coverage, shorter examination times and higher patient throughput. The results of the study also demonstrated that attempts to improve a device performance indicator may lead to a degradation of another and/or increased patient dose, and that every device has certain limitations which affect performance indicators. On the basis of these findings and the literature reviewed, recommendations were put forward to guide the radiography management at St. Luke's Hospital in the purchase of an appropriate CT scanner. |
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| Key words | Radiography, Thesis, Image Quality, CT Scan |