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Potenciación de la segmentación de imágenes médicas semisupervisada a través de la complementariedad de la

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    Resumen
    Este resumen es generado por máquina.

    Este estudio presenta un nuevo método semisupervisado para la segmentación de imágenes médicas que utiliza similitudes anatómicas entre pacientes. El enfoque mejora la precisión del modelo y la eficiencia del entrenamiento, incluso con datos limitados anotados por expertos.

    Palabras clave:
    segmentación de imágenes médicasaprendizaje semisupervisadocomplementariedad anatómicavisión por computadoraaprendizaje profundo

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    Área de la Ciencia:

    • Imágenes Médicas
    • Visión por Computadora
    • Aprendizaje Automático

    Sus antecedentes:

    • Los datos anotados por expertos son cruciales pero escasos para la segmentación de imágenes médicas.
    • Los datos etiquetados limitados dificultan el uso clínico de modelos de segmentación precisos.
    • La complementariedad anatómica interinstancia ofrece una solución potencial para la escasez de datos.

    Objetivo del estudio:

    • Desarrollar un enfoque semisupervisado novedoso para la segmentación de imágenes médicas.
    • Explotar la complementariedad anatómica interinstancia para mejorar la generalización del modelo y la eficiencia del entrenamiento.
    • Abordar el cuello de botella de los datos limitados anotados por expertos en imágenes médicas.

    Principales métodos:

    • Un modelo semisupervisado que integra un módulo de aumento de copia-pégado (CPAM) y un mecanismo de calibración de región entrenable (TRCM) dentro de un marco de profesor medio (MT).
    • CPAM mejora la diversidad de datos intercambiando regiones informativas entre muestras.
    • TRCM utiliza regiones etiquetadas para guiar la calibración de datos no etiquetados, generando pseudo-etiquetas de alta calidad.

    Principales resultados:

    • El modelo propuesto demuestra una eficacia sólida en diversos conjuntos de datos de imágenes médicas (LA, ACDC, BraTS2019, Pancreas-NIH) y modalidades (RM, TC).
    • Supera consistentemente los métodos de vanguardia en entornos con datos anotados limitados.
    • Logró un rendimiento superior en múltiples métricas de evaluación.

    Conclusiones:

    • El novedoso enfoque semisupervisado aprovecha eficazmente la complementariedad anatómica interinstancia.
    • Los componentes sinérgicos CPAM y TRCM mejoran significativamente el rendimiento de la segmentación de imágenes médicas.
    • El método ofrece una solución prometedora para entrenar modelos de segmentación precisos con datos etiquetados limitados.