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Resonancia magnética de la pierna - Risks

Nombres alternativos

IRM de la extremidad inferior; Imagen por resonancia magnética de la pierna; Imágenes por resonancia magnética de la extremidad inferior; Resonancia magnética del tobillo; Imágenes por resonancia magnética del tobillo; IRM del fémur; IRM de la pierna

Riesgos:

La resonancia magnética no utiliza radiación y, hasta la fecha, no se ha informado de efectos secundarios a causa de los campos magnéticos y las ondas de radio.

El tipo de medio de contraste (tinte) utilizado más común es el gadolinio, el cual es muy seguro. Las reacciones alérgicas a esta sustancia rara vez ocurren. Sin embargo, el gadolinio puede ser dañino para pacientes con problemas renales que requieran diálisis. Si usted tiene problemas en el riñón, coméntele al médico antes del examen.

Los fuertes campos magnéticos que se crean durante una resonancia magnética pueden provocar que los marcapasos cardíacos y otros implantes no funcionen igual de bien. También pueden provocar que otros pedazos de metal dentro del cuerpo se desplacen o cambien de posición.

Consideraciones:

Los exámenes que pueden hacerse en lugar de una resonancia magnética incluyen:

  • Gammagrafía ósea
  • Tomografía computarizada de la pierna
  • Tomografía por emisión de positrones (TEP)
  • Radiografía de la pierna

Un tomografía computarizada puede ser preferible en casos de emergencia, ya que es más rápida y normalmente está disponible directamente en la sala de urgencias.

  • Reviewed last on: 2/19/2011
  • Linda J. Vorvick, MD, Medical Director, MEDEX Northwest Division of Physician Assistant Studies, University of Washington, School of Medicine; C. Benjamin Ma, MD, Assistant Professor, Chief, Sports Medicine and Shoulder Service, UCSF Department of Orthopaedic Surgery. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

Referencias

Wilkinson ID, Paley MNJ. Magnetic resonance imaging: basic principles. In: Grainger RC, Allison D, Adam, Dixon AK, eds. Diagnostic Radiology: A Textbook of Medical Imaging. 5th ed. New York, NY: Churchill Livingstone; 2008:chap 5.

DeLee JC, Drez D Jr, Miller MD, eds. DeLee and Drez’s Orthopaedic Sports Medicine. 3rd ed. Philadelphia, Pa: Saunders Elsevier; 2009:chap 24.

Grainger RG, Thomsen HS, Morcos SK, Koh DM, Roditi G. Intravascular contrast media for radiology, CT, and MRI. In: Adam A, Dixon AK, eds. Grainger & Allison's Diagnostic Radiology: A Textbook of Medical Imaging. 5th ed. New York, NY: Churchill Livingstone; 2008:chap 2.

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