A new approach to research graphical performance of MRI RF coil based on the quantitative comparison method / 中国医疗器械杂志
Chinese Journal of Medical Instrumentation
;
(6): 180-182, 2010.
Artigo
em Chinês
| WPRIM
| ID: wpr-281131
ABSTRACT
<p><b>OBJECTIVE</b>To compare the performance of three different types of RF coil in 3.0T MRI, the signal-to-noise ratio (SNR) and image uniformity in 3.0 Tesla magnetic resonance imaging system have been studied.</p><p><b>MATERIALS AND METHODS</b>In addition to the measurement of SNR and Uniformity based on the protocol recommend by AAPM, the images had also been analyzed using SPSS and MATLAB to get the SNR distribution along two vertical direction and the whole imaging plane.</p><p><b>RESULTS</b>The SNR with T/R birdcage coil and 8-ch surface coil is seven and twelve times higher than surface coil in the region of interest (ROI), which was set in the center of the phantom images. With regard to the spatial variation of sensitivity, the uniformity of T/R birdcage coil and 8-ch surface coil are also much higher than that of surface coil.</p><p><b>CONCLUSION</b>The images from T/R birdcage and phased array coils are all better than those of surface coil. The SNR of the images from phased array coil is highest while the uniformity of the images from T/R birdcage coil is highest.</p>
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Ondas de Rádio
/
Teste de Materiais
/
Imageamento por Ressonância Magnética
/
Imagens de Fantasmas
/
Razão Sinal-Ruído
/
Métodos
Idioma:
Chinês
Revista:
Chinese Journal of Medical Instrumentation
Ano de publicação:
2010
Tipo de documento:
Artigo
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