MR Imaging of the Facial Nerve through the Temporal Bone at 3T with a Noncontrast Ultrashort Echo Time Sequence

J P Guenette; R T Seethamraju; J Jayender; C E Corrales; T C Lee

doi:10.3174/ajnr.A5754

MR Imaging of the Facial Nerve through the Temporal Bone at 3T with a Noncontrast Ultrashort Echo Time Sequence

AJNR Am J Neuroradiol. 2018 Oct;39(10):1903-1906. doi: 10.3174/ajnr.A5754. Epub 2018 Aug 23.

Authors

J P Guenette¹, R T Seethamraju², J Jayender³, C E Corrales⁴, T C Lee³

Affiliations

¹ From the Division of Neuroradiology (J.P.G., J.J., T.C.L.) [email protected].
² Siemens Medical Solutions USA, Inc. (R.T.S.), Boston, Massachusetts.
³ From the Division of Neuroradiology (J.P.G., J.J., T.C.L.).
⁴ Division of Otolaryngology-Head and Neck Surgery (C.E.C.), Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts.

Abstract

The pointwise encoding time reduction with radial acquisition (PETRA) ultrashort echo time MR imaging sequence at 3T enables visualization of the facial nerve from the brain stem, through the temporal bone, to the stylomastoid foramen without intravenous contrast. Use of the PETRA sequence, or other ultrashort echo time sequences, should be considered in the MR imaging evaluation of certain skull base tumors and perhaps other facial nerve and temporal bone pathologies.

Publication types

Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't

MeSH terms

Adult
Facial Nerve / diagnostic imaging*
Female
Humans
Magnetic Resonance Imaging / methods*
Male
Prospective Studies
Sensitivity and Specificity
Temporal Bone / diagnostic imaging*

Grants and funding

P41 EB015898/EB/NIBIB NIH HHS/United States