A Pilot Study on the Application of FFE and SSh-TSE Sequences in Ocular MRI

Xiaofen Ma， Junzhang Tian， Guihua Jiang，Lianbao Liang， Shaoqing Zeng， Wuming Li

Radiology Department， Guangdong NO．2 Provincial People's Hospital， Guangzhou 510317， China

Materials and methods

Imaging evaluation and statistical analysis

Statistical analysis

Results

Demonstration ofocularmicrostructureswith FFE and SSh-TSE sequences

Figure 1 Axial FFE sequence T1WI HR-MR image．The layers of the globe wall are depicted， as well as pars plicata（yellow arrow）， iris （green arrow）， retina（white arrow）Tenon's capsule（red arrow）， Lacrimal-gland（purple arrow），lens（asterisk）．

Figure 2 Axial FFE sequence T1WI HR-MR image．The layers of the tarsal plate are depicted

Figure 3 Coronal FFE sequence T1WI HR－MR image．The layers of the ocular wall fine anatomy are depicted．iris （yellow arrow）

Figure 4 Coronal SSH－TSE sequence T2WI HR－MR image．The layers of the ocular wall fine anatomy are depicted．

Figure 5 Axial SSH-TSE sequence T2WI HR-MR image．The structure of anterior chamber are depicted，as well as iris（black arrow）and anterior chamber angle，optic nerve sheath（yellow arrow）， anterior chamber（asterisk）．

Comparison between FFE and SSh-TSE sequences on their advantages in revealing delicate ocular anatomy

Table 1 Comparison on statistics grade result between FFE and SSH-TSE sequences

Legends to chart

Abbr．．PP-pars plicata，．CZ-Ciliary-zonule，．LE-lens，．TG-Tarsal-gland，．EM-Extraocular．muscle，．SCL-sclera，OS-ora serrata，．ONS-Optic-nerve-sheath，．VIT-vitreous，．ACA-Anterior-chamber-angle，．LG-Lacrimal-gland，IR-iris，．COR-cornea，．P-pupil，．TP-Tenon's capsule．

Discussion

With continuing progress in the technology of coils，microscopic coil has been increasingly used in clinical settings．．Plane resolution of ocularMRI scanning has evolved from originally 0．4 to 0．1 mm

Chart 1 The display case of orbit fine anatomy of FFE sequence

Chart 2 The display case of orbit fine anatomy of SSHTSE sequence