Evaluation of image lag in a flat-panel, detector-equipped cardiovascular X-ray machine using a newly developed dynamic phantom.
J Appl Clin Med Phys
; 16(2): 5213, 2015 Mar 08.
Article
em En
| MEDLINE
| ID: mdl-26103192
ABSTRACT
We developed a dynamic phantom for use in routine checks. This phantom can be used to physically evaluate image lag that occurs in dynamic images. It has a unique measurement method. ROIs on the target are chosen, and, with the position of ROIs fixed on the image, changes in pixel value are detected physically when the target passes through the ROIs over time and perceived as image lag. Thus, it was possible to physically detect different intensities of image lag lasting less than one second while maintaining the same intensity trends. The checking technique we propose with the dynamic phantom that we developed could be effective for routine checking of fluoroscopy X-ray machines, and could become an established method.
Texto completo:
1
Bases de dados:
MEDLINE
Assunto principal:
Fluoroscopia
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Interpretação de Imagem Radiográfica Assistida por Computador
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Doenças Cardiovasculares
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Imagens de Fantasmas
Tipo de estudo:
Evaluation_studies
Limite:
Humans
Idioma:
En
Revista:
J Appl Clin Med Phys
Assunto da revista:
BIOFISICA
Ano de publicação:
2015
Tipo de documento:
Article