Modification of the method for preparing rabbit liver VX2 tumor model and its MRI findings / 南方医科大学学报
Journal of Southern Medical University
;
(12): 747-749, 2006.
Artigo
em Chinês
| WPRIM
| ID: wpr-282927
ABSTRACT
<p><b>OBJECTIVE</b>To improve the method for preparing rabbit VX2 liver tumor model and observe the magnetic resonance imaging (MRI) features of the implanted tumors.</p><p><b>METHODS</b>Sixteen adult New Zealand white rabbits were assigned randomly into 4 equal groups, and VX2 tumor tissues were implanted into the right and left liver lobes with spiral CT guidance. Plain and contrast-enhanced MR scan and pathological analysis were performed in different stages (14, 18, 22 and 26 days) after tumor implantation.</p><p><b>RESULTS</b>Tumor implantation was successful in all the rabbits, and 18 to 22 days after tumor implantation, the diameters of the tumor ranged from 1 to 2 cm, which allowed observation and study. In plain MR scans, lower or equivalent tumor signal in comparison with hepatic parenchyma was observed, and contrast-enhanced scans produced obvious enhancement of the tumor edges. At 22 days after tumor implantation, obvious necrosis was observed in the center of the tumor.</p><p><b>CONCLUSION</b>This method of preparing rabbit VX2 liver tumor model with spiral CT guidance is simple and convenient, and the tumors can be observed effectively with dynamic plain and contrast-enhanced MR scans.</p>
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Patologia
/
Diagnóstico por Imagem
/
Imageamento por Ressonância Magnética
/
Distribuição Aleatória
/
Tomografia Computadorizada por Raios X
/
Modelos Animais de Doenças
/
Neoplasias Hepáticas Experimentais
/
Métodos
/
Transplante de Neoplasias
Tipo de estudo:
Estudo diagnóstico
Limite:
Animais
Idioma:
Chinês
Revista:
Journal of Southern Medical University
Ano de publicação:
2006
Tipo de documento:
Artigo
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