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Automatic Exposure Control During Computed Tomography Scans Of The Head: Effects On Dose And Image Quality, Stephen D. Osborne
Automatic Exposure Control During Computed Tomography Scans Of The Head: Effects On Dose And Image Quality, Stephen D. Osborne
Electronic Theses and Dissertations
Automatic exposure control (AEC) is effective at reducing potentially harmful radiation doses without sacrificing image quality for many types of computed tomography (CT) scans. However, there is a need for more information regarding the use of AEC for CT head scans. This study was conducted at Johnson County Community Hospital in Mountain City, TN. Preexisting adult CT head scans (n)60 were randomly selected to form 2 stratified samples, (n)30 each. One sample used a standard protocol, and the other used a protocol with a mA-modulated AEC system, Siemens CARE Dose 4D. Causal-comparative analyses were conducted, and …