Purpose: To preliminarily investigate the application value of rapid sequences FFE and SSh-TSE in ocular magnetic resonance imaging (MRI).
Methods: Ocular MRI was performed in 18 subjects without ocular conditions,and demonstration of 15 delicate anatomic structures on two sequences in each subject was rated by three proficient physicians.
Results: FFE sequence was comparatively advantageous in demonstrating delicate structures on ocular wall and ocular adnexa (P<0.001) over SSh-TSE; while SSh-TSE sequence better revealed the delicate anatomy within anterior chamber (P<0.001) and optic nerve sheath (P<0.05), with statistically significant differences compared with FFE.
Conclusion: Optimized FFE and SSh-TSE sequences are able to effectively eliminate the impact from motion artifact and thus result in desirable images with high spatial resolution. The application of high-resolution MR microscopic imaging technique has improved the ability to demonstrate delicate ocular structures.