Chaudhry A, et al. - This retrospective study intended to assess the normal anatomy of the sympathetic chain ganglia as well as evaluate the detectability of the sympathetic chain and sympathetic chain ganglia on high-resolution 3D-CISS images. Participants in the study were 29 patients who had 3D-CISS MR imaging of the thoracic spine for reasons unrelated to abnormalities of the sympathetic nervous system. Findings revealed that in all subjects, the stellate ganglion was found inferomedial to the subclavian artery and anterior and inferior to the transverse process of C7. Results of this study suggested that the thoracic sympathetic chain ganglia can be identified on precontrast 3D-CISS MR imaging.