Analysis of MRI imaging anatomy of normal human oculomotor nerve in 28 cases

Objective Application of MRI imaging shows the oculomotor nerve of normal intracranial segment of intraorbital cavernous sinus and radiographic signs. Methods Chose 28 normal persons as the object of study, age 25 ~ 39 year old, average 32 years old, were in the 3.0T MR scanner MRI examination, scanning plane except plane scanning routine, including oblique plane specific scanning, the cisternal segment of the oculomotor nerve head coil, 3D-COSMIC sequence scanning, layer thickness 0.8 mm the cavernous segment; the head coil, slice thickness 2.0 mm, FSE T1WI scan; orbital section adopts the surface coil, slice thickness 2.0 mm, FSE T1WI scan, using multiplanar reconstruction technique showed three of oculomotor nerve distribution and adjacent relations along nerve axis level, MRI imaging features were observed in each ocular motor nerve the. Results The oculomotor and abducens nerve cisternal segment of the display rate of 28/28(100%), the trochlear nerve display rate of 27/28(96.4%); the cavernous segment of the oculomotor nerve display rate of 28/28(100%), abducent nerve and the trochlear nerve display rate of 20/28(71.4%); intraorbital segment of the oculomotor nerve display rate of 27/28(96.4%), abducent nerve display 25/28(89.2%), 13/28(46.4%) the trochlear nerve. Conclusion MRI can clearly show the oculomotor nerve and its adjacent relations, is the preferred neuroimaging methods.