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Updated: Jan 24, 2026

Individualized rTMS Treatment for Depression using an fMRI-Based Targeting Method
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Una GUI de algoritmo de cuenca hidrográfica para rTMS guiada por fMRI personalizada

Zi-Jian Feng1, Ziyu Wei2, Liquan Hong3

  • 1TMS center, The Third People's Hospital of Deqing (Deqing Hospital of Hangzhou Normal University), Deqing, Zhejiang, China; Methods and Development Group Brain Networks, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany; Research Group Cognition and Plasticity, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany.

NeuroImage
|January 22, 2026
PubMed
Resumen
Este resumen es generado por máquina.

Un nuevo método basado en cuencas hidrográficas mejora la orientación de la estimulación magnética transcraneal repetitiva personalizada (rTMS) utilizando resonancia magnética funcional (fMRI). Este enfoque ofrece una localización más confiable de los sitios de estimulación en comparación con los métodos tradicionales.

Palabras clave:
toolbox GUIrTMS personalizadaRS-fMRIsegmentación de cuenca hidrográficaconectividad funcionalobjetivo de rTMS

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Área de la Ciencia:

  • Neurociencia
  • Imagen Médica
  • Biología Computacional

Sus antecedentes:

  • La estimulación magnética transcraneal repetitiva (rTMS) personalizada se basa en la resonancia magnética funcional (fMRI) para una localización precisa del objetivo.
  • Los métodos actuales de localización basados en fMRI a menudo utilizan umbrales subjetivos y máscaras de atlas, lo que lleva a variabilidad en los objetivos de rTMS individualizados.
  • Es crucial desarrollar métodos objetivos y reproducibles para la rTMS guiada por fMRI para la eficacia clínica.

Objetivo del estudio:

  • Introducir un novedoso enfoque de segmentación basado en cuencas hidrográficas para el análisis de imágenes funcional independiente de umbral.
  • Implementar este método en una interfaz gráfica fácil de usar para la localización de objetivos de rTMS.
  • Evaluar el rendimiento de este nuevo enfoque frente a los métodos convencionales utilizando objetivos de la red de modo predeterminado relevantes para la enfermedad de Alzheimer.

Principales métodos:

  • Desarrollo de un algoritmo de segmentación de imágenes basado en cuencas hidrográficas para datos de fMRI.
  • Implementación del algoritmo dentro de una caja de herramientas de interfaz gráfica de usuario (GUI).
  • Validación utilizando datos de fMRI de estado de reposo de 21 participantes sanos, comparando los objetivos de la corteza cingulada posterior (PCC) y el lóbulo parietal inferior (IPL) con una estrategia convencional de búsqueda de picos.

Principales resultados:

  • El enfoque de cuenca hidrográfica demostró una alta concordancia para los objetivos de la corteza cingulada posterior (PCC).
  • Se observó un desplazamiento espacial mediano de 6,0 mm para los objetivos del lóbulo parietal inferior (IPL) en comparación con los métodos convencionales.
  • El análisis cualitativo indicó una reducción del sesgo de los clústeres vecinos, los límites del atlas y los picos múltiples.

Conclusiones:

  • El método propuesto basado en cuencas hidrográficas proporciona una herramienta generalizable y accesible para la rTMS individualizada guiada por fMRI.
  • Este enfoque independiente de umbral mejora la fiabilidad y objetividad de la selección de objetivos de rTMS.
  • El marco tiene el potencial de mejorar la precisión y la eficacia de las terapias de rTMS.