Normative measurements of orbital structures by magnetic resonance imaging.

Purpose: We describe and compare the normative values of orbital structures in an Australian cohort on T1-weighted MRI and fat-suppressed contrast-enhanced T1-weighted MRI.

Methods: Retrospective review of patients who underwent 3T orbital MRI. The maximum extraocular muscle (EOM) and superior ophthalmic vein (SOV) diameters on normal orbits were recorded.

Normative measurements of the superior oblique and inferior oblique muscles by magnetic resonance imaging.

Purpose: Normative oblique muscle data may help to diagnose pathological enlargement of the oblique muscles. We aim to describe the normative values of the superior and inferior oblique muscles in an Australian cohort on T1-weighted MRI and fat suppressed contrast enhanced T1-weighted MRI.

Methods: A retrospective review of patients who underwent 3 T orbital MRI.