Cranial nerve assessment in cavernous sinus tumors with contrast-enhanced 3D fast-imaging employing steady-state acquisition MR imaging
- 334 Downloads
The purpose of this study is to apply contrast-enhanced 3D fast-imaging employing steady-state acquisition (3D-FIESTA) imaging to the evaluation of cranial nerves (CN) in patients with cavernous sinus tumors.
Contrast-enhanced 3D-FIESTA images were acquired from ten patients with cavernous sinus tumors with a 3-T unit.
In all cases, the trigeminal nerve with tumor involvement was easily identified in the cavernous portions. Although oculomotor and abducens nerves were clearly visualized against the tumor area with intense contrast enhancement, they were hardly identifiable within the area lacking contrast enhancement. The trochlear nerve was visualized in part, but not delineated as a linear structure outside of the lesion.
Contrast-enhanced 3D-FIESTA can be useful in the assessment of cranial nerves in and around the cavernous sinus with tumor involvement.
KeywordsCranial nerves Fast-imaging employing steady-state acquisition FIESTA Cavernous sinus
Conflict of interest statement
We declare that we have no conflict of interest.
- 4.Seitz J, Held P, Fru¨nd R R et al (2001) Visualization of the IXth to XIIth cranial nerves using 3-dimensional constructive interference in steady state, 3-dimensional magnetization-prepared rapid gradient echo and T2-weighted 2-dimensional turbo spin echo magnetic resonance imaging sequences. J Neuroimaging 11:160–164PubMedCrossRefGoogle Scholar
- 9.Harris FS, Rhoton AL Jr (1976) Anatomy of the cavernous sinus: a microsurgical study. J Neurosurg 1045:169–180Google Scholar