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Diagnosing Small Hepatic Cysts on Multidetector CT: an Additional Merit of Thinner Coronal Reformations
Article em En | WPRIM | ID: wpr-225539
Biblioteca responsável: WPRO
ABSTRACT
OBJECTIVE: We wanted to validate the additional merit of the thinner coronal reformation images from multidetector CT (MDCT) for making the diagnosis of hepatic cysts. MATERIALS AND METHODS: For the 90 benign hepatic cysts confirmed on MRI, the transverse (5-mm thickness) and additional coronal (2-mm thickness) reformation images from MDCT were compared with each other in terms of the Hounsfield units (HUs) and the size of each hepatic cyst. RESULTS: The attenuations (mean: 17.2 HUs, standard deviation: +/- 14.4) on the thinner coronal images were significantly lower than those (mean: 40.7 HUs; standard deviation: +/- 20.6) on the thicker transverse images for the small hepatic cysts (< or = 10 mm on the transverse image, p < 0.01). Twenty-three (79%) of the 29 cysts between 5 mm and 10 mm and 21 (51%) of 41 lesions up to 5 mm showed a mean HU value of 20 or less on the coronal reformation images. CONCLUSION: By reducing the partial volume effect, routine coronal reformation of MDCT with a thinner section thickness can provide another merit for making a confidential diagnosis of many small sub-centimeter hepatic cysts, and these small cysts are not easily characterized on the conventional transverse images.
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Texto completo: 1 Índice: WPRIM Assunto principal: Iohexol / Imageamento por Ressonância Magnética / Interpretação de Imagem Radiográfica Assistida por Computador / Tomografia Computadorizada por Raios X / Análise de Variância / Meios de Contraste / Gadolínio DTPA / Cistos / Hepatopatias Limite: Adult / Female / Humans / Male Idioma: En Revista: Korean Journal of Radiology Ano de publicação: 2011 Tipo de documento: Article
Texto completo: 1 Índice: WPRIM Assunto principal: Iohexol / Imageamento por Ressonância Magnética / Interpretação de Imagem Radiográfica Assistida por Computador / Tomografia Computadorizada por Raios X / Análise de Variância / Meios de Contraste / Gadolínio DTPA / Cistos / Hepatopatias Limite: Adult / Female / Humans / Male Idioma: En Revista: Korean Journal of Radiology Ano de publicação: 2011 Tipo de documento: Article