An apparatus and method for mounting cables within a magnetic resonance imaging (MRI) system are provided. One apparatus includes a cable assembly having a rigid support structure defining a channel with a cross-section and an electrical cable having a cross-section smaller than the cross-section of the channel. The electrical cable is secured within the channel of the rigid support structure, with the rigid support structure configured for coupling to a stationary component of the MRI system to resist movement from a movable component to which the electrical cable is connected.