DYNAMIC MAGNETIC RESONANCE IMAGING: PRELIMINARY PRESENTATION OF A TECHNIQUE

Objetivo: Evaluar las variaciones morfometricas de la columna cervical en pacientes con mielopatia cervical espondilotica (MCE) mediante resonancia magnetica dinamica en la posicion neutra, en flexion y extension. Metodos: Se trata de un estudio prospectivo de pacientes con MCE secundaria a la enfermedad degenerativa de la columna cervical. Los parametros morfometricos fueron evaluados en las secuencias ponderadas en T2 en el plano sagital en la posicion neutra, en flexion y extension de la resonancia magnetica. Los parametros estudiados fueron la longitud anterior de la medula espinal (LAME), la longitud posterior de la medula espinal (LPME), el diametro del canal espinal (DCE) y el diametro de la medula espinal (DME). Resultados: La LAME y la LPME fueron mas largas en flexion que en las posiciones neutra y en extension, con diferencia estadisticamente significativa entre la posicion en flexion y extension. El DME y el DCE fueron mayores en flexion que en extension y la posicion neutra, sin embargo no hubo diferencia estadisticamente significativa cuando se compararon en la posicion neutral, en flexion y extension. Conclusion: El examen de resonancia magnetica dinamica permite evaluar los cambios morfometricos en el canal espinal cervical en pacientes con mielopatia cervical espondilotica.

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