Melanie C Dempsey

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PURPOSE Limiting the size of the x-ray field during radiography is an important radiation safety practice and the sole responsibility of the radiologic technologist. Collimation reduces the volume of tissue irradiated and therefore reduces patient exposure and improves image quality. The purpose of the research experiment was to investigate the effect of(More)
This report on intensity-modulated radiation therapy (IMRT) is part of a series of white papers addressing patient safety commissioned by the American Society for Radiation Oncology's (ASTRO) Target Safely Campaign. The document has been approved by the ASTRO Board of Directors, endorsed by the American Association of Physicists in Medicine (AAPM) and(More)
PURPOSE To explore digital exposure techniques during pelvic imaging on patient dosimetry, exposure indicator (EXI) values and image quality. METHODS An experimental design was used to study the effect of varying kilovoltage peak (kVp) and milliampere-seconds (mAs) on a male phantom pelvis when using a direct digital radiography (DR) flat panel detector.(More)
OBJECTIVE To describe perceptions of patient safety culture (PSC) among US vascular interventional technologists (VIR). METHODS A letter to complete The Hospital Survey on Patient Safety Culture online was distributed in the US to all full-time American Registry of Radiologic Technologists (ARRT)-registered technologists with a primary discipline of(More)
This paper explores the impact of product placement in music videos on young adults’ attitudes and behaviours. We find that images (the context in which brands appear) in music videos influence brand image, and that the process that influences consumers' attitudes toward the placed brand is likely nonconscious. We discuss these findings in terms of public(More)
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