Advanced imaging of head and neck infections

Author:

Baba Akira1ORCID,Kurokawa Ryo1ORCID,Kurokawa Mariko1ORCID,Reifeiss Scott2,Policeni Bruno A2,Ota Yoshiaki1ORCID,Srinivasan Ashok1ORCID

Affiliation:

1. Division of Neuroradiology, Department of Radiology University of Michigan Ann Arbor Michigan USA

2. Department of Radiology, Roy Caver College of Medicine University of Iowa Iowa City Iowa USA

Abstract

AbstractWhen head and neck infection is suspected, appropriate imaging contributes to treatment decisions and prognosis. While contrast‐enhanced CT is the standard imaging modality for evaluating head and neck infections, MRI can better characterize the skull base, intracranial involvement, and osteomyelitis, implying that these are complementary techniques for a comprehensive assessment. Both CT and MRI are useful in the evaluation of abscesses and thrombophlebitis, while MRI is especially useful in the evaluation of intracranial inflammatory spread/abscess formation, differentiation of abscess from other conditions, evaluation of the presence and activity of inflammation and osteomyelitis, evaluation of mastoid extension in middle ear cholesteatoma, and evaluation of facial neuritis and labyrinthitis. Apparent diffusion coefficient derived from diffusion‐weighted imaging is useful for differential diagnosis and treatment response of head and neck infections in various anatomical sites. Dynamic contrast‐enhanced MRI perfusion may be useful in assessing the activity of skull base osteomyelitis. MR bone imaging may be of additional value in evaluating bony structures of the skull base and jaw. Dual‐energy CT is helpful in reducing metal artifacts, evaluating deep neck abscess, and detecting salivary stones. Subtraction CT techniques are used to detect progressive bone‐destructive changes and to reduce dental amalgam artifacts. This article provides a region‐based approach to the imaging evaluation of head and neck infections, using both conventional and advanced imaging techniques.

Publisher

Wiley

Subject

Neurology (clinical),Radiology, Nuclear Medicine and imaging

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