Lymphography by MRI for animal model canine
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Universidad Santo Tomás. Seccional Bucaramanga
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Para este estudio se contó con dos grupos, uno de 12 animales sanos y otro con 10 animales que cursaban procesos patológicos en la glándula mamaria. Con los animales anestesiados se emplearon imágenes por resonancia magnética para visualizar los conductos linfáticos y linfonodos de la zona inguinal en series potenciadas en 3D TOF en plano dorsal. En los dos grupos se administró gadopentetato de dimeglumina. Para validar la técnica empleada se consideraron en las imágenes tres estructuras (aire, grasa y músculo) cuya IS mostró diferencia significativa entre tejido glandular mamario (IS 184,8 ± 28,2) y linfonodos regionales (IS de 51,3 ± 5,4), permitiendo determinar el patrón de referencia para el estudio. Se concluye que el empleo de un equipo de IRM de bajo campo proporciona suficiente información para diferenciar intensidades de señal de linfonodos que recogen linfa de procesos patológicos respecto a linfonodos sanos en caninos.
For this study were included two groups, one of 12 healthy animals and another of 10 animals affected by disease conditions in the mammary gland. With the anesthetized animal were used magnetic resonance imaging to visualize the lymph ducts and lymph nodes in the inguinale area in potentiated series in 3D TOF in dorsal plane. In both groups it was administered gadopentetate dimeglumine. To validate the technique used, were considered in the images three structures (air, fat and muscle) which IS showed significant difference between glandular breast tissue (IS 184.8 ± 28.2) and regional lymph nodes (IS 51.3 ± 5, 4), allowing to determine the benchmark for the study. It is concluded that the use of a low field equipment of MRI provides enough information to differentiate signal intensities of lymph nodes that collect lymph from pathological processes regarding healthy lymph nodes in dogs
For this study were included two groups, one of 12 healthy animals and another of 10 animals affected by disease conditions in the mammary gland. With the anesthetized animal were used magnetic resonance imaging to visualize the lymph ducts and lymph nodes in the inguinale area in potentiated series in 3D TOF in dorsal plane. In both groups it was administered gadopentetate dimeglumine. To validate the technique used, were considered in the images three structures (air, fat and muscle) which IS showed significant difference between glandular breast tissue (IS 184.8 ± 28.2) and regional lymph nodes (IS 51.3 ± 5, 4), allowing to determine the benchmark for the study. It is concluded that the use of a low field equipment of MRI provides enough information to differentiate signal intensities of lymph nodes that collect lymph from pathological processes regarding healthy lymph nodes in dogs
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Canine, lymphatic duct, lymph node, image by magnetic resonance, signal intensity., Canino, conducto linfático, linfonodos, imagen por resonancia magnética, intensidad de señal.
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