Mangafodipir Trisodium (Mn-DPDP)-Enhanced MR Imaging of Hepatocellular Carcinoma: Correlation with Histopathological Findings
Journal of the Korean Radiological Society
;
: 499-506, 2002.
Artigo
em Coreano
| WPRIM
| ID: wpr-219110
ABSTRACT
PURPOSE:
To correlate the contrast enhancement pattern of hepatocellular carcinoma (HCC) seen at mangafodipir trisodium (Mn-DPDP)-enhanced MR imaging with the histopathologic findings. MATERIALS ANDMETHODS:
In 28 patients with 36 HCCs larger than 1 cm, Mn-DPDP-enhanced T1-weighted fast multiplanar spoiled gradient-recalled echo (GRE) MR images were obtained before and 15 mins after Mn-DPDP administration. Qualitative analysis focused on signal intensity (hyper-, iso-, or hypo-) relative to surrounding liver parenchyma, while the signal enhancement ratio [ER (%)] and lesion-to-liver contrast-noise ratio (CNR) were determined quantitatively. Signal intensity relative to surrounding liver parenchyma, lesion-to-liver CNR and signal ER of the lesions were correlated with their size and histopathologic grade.RESULTS:
The imaging procedure showed that relative to surrounding liver parenchyma, 74% (14/19) of HCCs 1-3 cm in size but 47% (8/17) of those larger than 3 cm were hyperintense. There was, however, no significant difference between the two groups (p>0.05). In addition, 35% (6/17) of HCCs larger than 3 cm but none of the 19 smaller lesions were hypointense, with a significant difference between the two groups (p0.05).CONCLUSION:
At Mn-DPDP-enhanced MR imaging, HCCs 1-3 cm in size showed greater signal intensity and signal ER than HCCs larger than 3 cm. Well or moderately differentiated HCCs showed greater signal ER than those that were poorly differentiated. Lesion-to-liver CNR did not differ according to lesion size and histopathologic grade.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Imageamento por Ressonância Magnética
/
Carcinoma Hepatocelular
/
Fígado
/
Manganês
Tipo de estudo:
Pesquisa qualitativa
Limite:
Humanos
Idioma:
Coreano
Revista:
Journal of the Korean Radiological Society
Ano de publicação:
2002
Tipo de documento:
Artigo
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