The Orbit and Optic Nerves

Abstract

Magnetic Resonance Imaging (MRI) of the orbits and optic nerves has developed into the “gold standard” of imaging modalities for the evaluation of many soft tissue abnormalities of the orbit. Computed tomography (CT) remains the modality of choice for evaluation of the bony structures of the orbit. MRI is also more flexible, allowing for multiplanar imaging that is not possible with CT. This unit presents a basic protocol for imaging of the orbit. An alternate protocol is presented for the case of dedicated high-resolution surface coil orbital study.