Image quality assessment of head CT: Control charts as an useful instrument

• Autor(a) principal: Guiomar, Joana Reis
• Data de Publicação: 2013
• Outros Autores: Ribeiro, Luís Pedro, Ribeiro, Anabela, Abrantes, António, Pinheiro, João, Almeida, Rui, Azevedo, Kevin
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
• Texto Completo: http://hdl.handle.net/10400.1/17942
• topic: Image quality; Computed tomography; Conformities; Quality control charts

Themain objective of this research was to determine if the diagnostic image, acquired by CT scan, meets the quality criteria previously established for head CT exams. A total of 360 Head Computed Tomography exams were analyzed, using a checklist. For data collection, quality criteria were created, organized into four criteria groups, consisting of multiple items that must appear in the images studies. After data processing, a large number of non-conformexaminations were identified in than more than 50% of the sample. We concluded the main causes of these results are: the “incorrect or incomplete positioning”, the "lack of name of the radiographer and “motion artefacts”. Therefore it is essential to implement a checklist for a systematic evaluationof procedures.