MRI of the Internal Auditory Canal, Labyrinth, and Middle Ear: How We Do It.

Abstract:

:MRI is firmly established as an essential modality in the imaging of the temporal bone and lateral skull base. It is used to evaluate normal anatomic structures, evaluate for vestibular schwannomas, assess for inflammatory and/or infectious processes, and detect residual and/or recurrent cholesteatoma. It is also extensively used in pre- and postoperative evaluations, particularly in patients with vestibular schwannomas and candidates for cochlear implantation. Nevertheless, despite the widespread use of MRI for these purposes, many radiologists remain unfamiliar with the complex anatomy and expected imaging findings with such examinations. The purpose of this review is to provide an overview of the most useful MRI sequences for internal auditory canal and labyrinthine imaging, review the relevant anatomy, and discuss the expected appearances of the most commonly encountered pathologic entities. In addition, the features at pre- and postprocedural MRI will be discussed to help ensure that diagnostic radiologists may be of greatest use to the ordering physicians. © RSNA, 2020.

journal_name

Radiology

journal_title

Radiology

authors

Benson JC,Carlson ML,Lane JI

doi

10.1148/radiol.2020201767

subject

Has Abstract

pub_date

2020-11-01 00:00:00

pages

252-265

issue

2

eissn

0033-8419

issn

1527-1315

journal_volume

297

pub_type

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