{"id":12083,"date":"2025-07-31T10:49:12","date_gmt":"2025-07-31T14:49:12","guid":{"rendered":"https:\/\/www.rigicon.com\/glossary-term\/magnetic-resonance-imaging\/"},"modified":"2025-07-31T10:49:12","modified_gmt":"2025-07-31T14:49:12","slug":"resonancia-magnetica-rm","status":"publish","type":"glossary-term","link":"https:\/\/www.rigicon.com\/es\/glossary-term\/resonancia-magnetica-rm\/","title":{"rendered":"Resonancia Magn\u00e9tica (RM)"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"","protected":false},"featured_media":0,"template":"","glossary-category":[109],"glossary-product":[],"class_list":["post-12083","glossary-term","type-glossary-term","status-publish","hentry","glossary-category-diagnostic-phenomena"],"acf":{"gt-definition":"<p>\n        La resonancia magn\u00e9tica (MRI) es una t\u00e9cnica de im\u00e1genes m\u00e9dicas no invasiva que utiliza potentes campos magn\u00e9ticos y ondas de radio generadas por computadora para crear im\u00e1genes tridimensionales detalladas de los \u00f3rganos y tejidos del cuerpo.<sup>1<\/sup> La tecnolog\u00eda funciona explotando las propiedades magn\u00e9ticas naturales de los \u00e1tomos de hidr\u00f3geno que se encuentran en abundancia en las mol\u00e9culas de agua en todos los tejidos del cuerpo.<sup>2<\/sup> Cuando se coloca dentro de un fuerte campo magn\u00e9tico En una m\u00e1quina de resonancia magn\u00e9tica, estos protones de hidr\u00f3geno se alinean con el campo. Luego se pulsa una corriente de radiofrecuencia a trav\u00e9s del paciente, lo que hace que los protones pierdan el equilibrio. A medida que se realinean con el campo magn\u00e9tico despu\u00e9s de apagar la radiofrecuencia, liberan energ\u00eda que es detectada por sensores especializados.<sup>3<\/sup> El tiempo que tardan los protones en realinearse y la cantidad de energ\u00eda liberada var\u00eda seg\u00fan el entorno del tejido, lo que permite a los m\u00e9dicos diferenciar entre varios tipos de tejidos en funci\u00f3n de estas propiedades magn\u00e9ticas.<sup>4<\/sup> La resonancia magn\u00e9tica se usa ampliamente para la detecci\u00f3n, el diagn\u00f3stico y el seguimiento del tratamiento de enfermedades, lo que proporciona una experiencia excepcional. contraste de tejidos blandos sin exponer a los pacientes a radiaci\u00f3n ionizante.<sup>5<\/sup>\n    <\/p>","gt-synonyms":"MRI, Im\u00e1genes por resonancia magn\u00e9tica nuclear (t\u00e9rmino hist\u00f3rico), Im\u00e1genes de RMN, Tomograf\u00eda por resonancia magn\u00e9tica, Im\u00e1genes por resonancia magn\u00e9tica, fMRI (Imagen por resonancia magn\u00e9tica funcional - tipo especializado)","gt-citation":"[1] Grover VPB, Tognarelli JM, Crossey MME, Cox IJ, Taylor-Robinson SD, McPhail MJW. Magnetic Resonance Imaging: Principles and Techniques: Lessons for Clinicians. J Clin Exp Hepatol. 2015;5(3):246-255. doi:10.1016\/j.jceh.2015.08.001\n\n[2] Wu C, Dougherty JD, Harms MP, et al. Clinical applications of magnetic resonance imaging based functional and structural connectomics in epilepsy. Neuroimage. 2022;244:118649. doi:10.1016\/j.neuroimage.2021.118649\n\n[3] National Institute of Biomedical Imaging and Bioengineering. Magnetic Resonance Imaging (MRI). https:\/\/www.nibib.nih.gov\/science-education\/science-topics\/magnetic-resonance-imaging-mri\n\n[4] Mayo Clinic. MRI. https:\/\/www.mayoclinic.org\/tests-procedures\/mri\/about\/pac-20384768\n\n[5] Berger A. Magnetic resonance imaging. BMJ. 2002;324(7328):35. doi:10.1136\/bmj.324.7328.35","gt-clinical-context":"<p>\n        La resonancia magn\u00e9tica se emplea en numerosas especialidades m\u00e9dicas debido a su capacidad excepcional para visualizar tejidos blandos con alta resoluci\u00f3n y contraste.<sup>1<\/sup> A diferencia de la tomograf\u00eda computarizada (CT) o los rayos X convencionales, la resonancia magn\u00e9tica no utiliza radiaci\u00f3n ionizante, lo que la hace particularmente valiosa para pacientes que requieren im\u00e1genes frecuentes o aquellos m\u00e1s vulnerables a los efectos de la radiaci\u00f3n, como mujeres embarazadas y ni\u00f1os.<sup>3<\/sup>\n    <\/p>\n    <p>\n        La resonancia magn\u00e9tica es la modalidad de imagen de elecci\u00f3n para afecciones neurol\u00f3gicas, ya que puede diferenciar entre la materia blanca y gris en el cerebro y detectar anomal\u00edas sutiles como enfermedades desmielinizantes, tumores peque\u00f1os y malformaciones vasculares.<sup>2<\/sup> Se usa ampliamente en el diagn\u00f3stico y seguimiento de la esclerosis m\u00faltiple, tumores cerebrales, accidentes cerebrovasculares y trastornos neurodegenerativos.<sup>4<\/sup> RM funcional (fMRI), una aplicaci\u00f3n especializada, mide los cambios en el flujo sangu\u00edneo en el cerebro para mapear \u00e1reas activadas durante tareas cognitivas espec\u00edficas, proporcionando informaci\u00f3n valiosa para la planificaci\u00f3n neuroquir\u00fargica y la investigaci\u00f3n neurol\u00f3gica.<sup>3<\/sup>\n    <\/p>\n    <p>\n        En medicina musculoesquel\u00e9tica, la resonancia magn\u00e9tica sobresale en la visualizaci\u00f3n de estructuras de tejidos blandos, incluidos ligamentos, tendones, cart\u00edlagos y m\u00fasculos, lo que la hace invaluable para diagnosticar lesiones deportivas, afecciones degenerativas de las articulaciones y trastornos de la columna.<sup>4<\/sup> Para lesiones de rodilla y hombro, la resonancia magn\u00e9tica proporciona una visualizaci\u00f3n detallada de desgarros de menisco, lesiones del manguito rotador y da\u00f1o de ligamentos que podr\u00edan ser indetectables con otras im\u00e1genes m\u00e9todos.<sup>3<\/sup>\n    <\/p>\n    <p>\n        La resonancia magn\u00e9tica cardiovascular permite evaluar la estructura, funci\u00f3n y flujo sangu\u00edneo card\u00edaco, lo que ayuda en el diagn\u00f3stico de defectos card\u00edacos cong\u00e9nitos, miocardiopat\u00edas y enfermedades vasculares.<sup>4<\/sup> En oncolog\u00eda, la resonancia magn\u00e9tica ayuda en la detecci\u00f3n, caracterizaci\u00f3n, estadificaci\u00f3n y monitoreo de la respuesta al tratamiento de tumores en m\u00faltiples sistemas org\u00e1nicos.<sup>1<\/sup>\n    <\/p>\n    <p>\n        La selecci\u00f3n del paciente para la resonancia magn\u00e9tica considera varios factores, incluida la pregunta cl\u00ednica que se aborda, la necesidad de un contraste superior de los tejidos blandos, preocupaciones sobre la exposici\u00f3n a la radiaci\u00f3n y contraindicaciones como ciertos dispositivos m\u00e9dicos implantados o claustrofobia severa.<sup>5<\/sup> El procedimiento generalmente dura entre 15 y 60 minutos dependiendo de la parte del cuerpo de la que se obtienen im\u00e1genes y los protocolos espec\u00edficos utilizados.<sup>4<\/sup>\n    <\/p>","gt-related-evidence":null,"gt-featured":true,"gt-ai-referenced":false,"gt-view-count":92},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.7 (Yoast SEO v27.7) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Resonancia Magn\u00e9tica (RM) (MRI)<\/title>\n<meta name=\"description\" content=\"La resonancia magn\u00e9tica utiliza potentes imanes y ondas de radio para crear im\u00e1genes tridimensionales detalladas de los tejidos corporales sin radiaci\u00f3n...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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