Comparison of Non-Breath-Hold T2-weighted Turbo Spin-Echo and Three Breath-Hold T2-weighted MR Images for Detection of Focal Hepatic Lesion
Journal of the Korean Radiological Society
; : 731-738, 1999.
Artigo
em Coreano
| WPRIM (Pacífico Ocidental)
| ID: wpr-140297
Biblioteca responsável:
WPRO
ABSTRACT
PURPOSE:
The purpose of this study was to compare non-breath-hold T2-weighted turbo spin-echo (TSE) MR imaging with three types of breath-hold T2-weighted MR imaging (breath-hold TSE [BHTSE], half-Fourier single- shot TSE [HASTE], and true-fast imaging with steady-state precession [FISP]) for hepatic lesion detection. MATERIALS ANDMETHODS:
T2-weighted MR images obtained using the above with the four sequences in 38 patients with 53 solid malignant and 90 non-solid benign hepatic lesions were retrospectively analyzed. Images were compared quantitatively (lesion-to-liver contrast-to-noise ratio and lesion detectability) and qualitatively (conspicuity of lesion and artifact). Statistical analysis involved the paired t-test for quantitative evaluation and Wilcoxon's signed rank test for qualitative evaluation.RESULTS:
The values of lesion-to-liver contrast-to-noise ratios and lesion conspicuity for solid malignant hepatic lesions were better with non-breath-hold TSE imaging than with the three breath-hold T2-weighted sequences (p .05), and lesion detectability for non-solid benign lesions was similar (94% and 98%, compared with 91% and 96 %).CONCLUSION:
In the cases of solid malignant hepatic lesions, the three breath-hold T2-weighted sequences were inferior to non-breath-hold TSE with regard to lesion-to-liver contrast-to-noise ratio and lesion detectability. Non-breath-hold TSE imaging should thus not be replaced by breath-hold T2-weighted imaging.
Texto completo:
Disponível
Base de dados:
WPRIM (Pacífico Ocidental)
Assunto principal:
Imageamento por Ressonância Magnética
/
Estudos Retrospectivos
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Estudos de Avaliação como Assunto
Tipo de estudo:
Estudo diagnóstico
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Estudo de avaliação
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Estudo observacional
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Pesquisa qualitativa
Limite:
Humanos
Idioma:
Coreano
Revista:
Journal of the Korean Radiological Society
Ano de publicação:
1999
Tipo de documento:
Artigo