A comparison of conventional and diffusion-weighted magnetic resonance imaging in the diagnosis of sialadenitis and pleomorphic adenoma

Araújo, José Paulo; Terra, Guilherme Teixeira Coelho; Cortes, Arthur Rodríguez González; Hernandez, Adalsa; Oliveira, Jefferson Xavier de

doi:10.1016/j.oooo.2018.10.006

Cited by 1 publication

(1 citation statement)

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“…57 DWI has shown high diagnostic performance in detecting changes in the salivary glands and may be useful in the evaluation of sialadenitis (Figure 27). 88 It has been reported that early pathologic changes in Sjögren's syndrome can result in a definite increase in ADC values even when they cannot be visualized with conventional MRI, and may be useful in differentiating from infectious sialadenitis. 89 Virtual unenhanced images derived from dual-energy CT may be an alternative to conventional noncontrast CT in the detection of sialolithiasis 3 (Figure 28).…”

Section: Salivary Glandsmentioning

confidence: 99%

Advanced imaging of head and neck infections

Baba

Kurokawa

et al. 2023

Journal of Neuroimaging

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When 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.

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Section: Salivary Glandsmentioning

confidence: 99%