Impact of Scan Location on Visualization Characteristics of the Lateral Rectus–Superior Rectus Band with High-Resolution MR Imaging

BACKGROUND: To analyze the imaging features of the lateral rectus-superior rectus (LR-SR) band as imaged with magnetic resonance imaging (MRI) at different orbital scan locations. METHODS: The LR-SR band features of patients who underwent high-resolution MRI for non-orbital pathology were evaluated at pre-defined locations by two independent readers. Analyzed features included (1) visibility, (2) continuity, and (3) superotemporal bowing of LR-SR band in a binary manner at 2.5 mm anterior (Zone I), at (Zone II) and posterior (Zone III) to the globe-optic nerve junction. RESULTS: Forty-eight orbits of 26 patients with an age range of 58-86 years were included. Visualization of the LR-SR band was significantly higher in Zone I (89.6%) compared to Zone II (79.2%) (p=0.03) and to Zone III (47.9%) (p