Mastoiditis on MRI: Fact or Artifact?

Meredith, James R; Boyev, K. Paul

doi:10.1177/014556130808700909

Cited by 15 publications

(14 citation statements)

References 8 publications

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“…In our sample the maxillary and ethmoid sinuses were more frequently involved in softtissue swelling than the sphenoid and frontal sinus ( • " 28]. Abnormal findings without clinical relevance were reported for mastoid cells in infants below the age of 1 [29] as well as in adults [30]. In our patients a hyperintense T2 signal predominantly occurred in children younger than 10 years (42 %) but was not confined to the first year of life ( • " Table 3).…”

Section: Discussionmentioning

confidence: 53%

Incidental Findings in Paranasal Sinuses and Mastoid Cells: A Cross-Sectional Magnetic Resonance Imaging (MRI) Study in a Pediatric Radiology Department

Kalle

Fabig-Moritz

Heumann

et al. 2012

Fortschr Röntgenstr

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Mucosal swelling in paranasal sinuses and in mastoid cells is a frequent incidental finding in children. Even major mucosal swelling in a paranasal sinus is not necessarily a sign of infection. In radiological reports the terms "sinusitis" and "mastoiditis" should therefore be used with great caution. The initiation of treatment should be based on clinical symptoms and not on radiological abnormalities alone.

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Section: Discussionmentioning

confidence: 53%

Incidental Findings in Paranasal Sinuses and Mastoid Cells: A Cross-Sectional Magnetic Resonance Imaging (MRI) Study in a Pediatric Radiology Department

Kalle

Fabig-Moritz

Heumann

et al. 2012

Fortschr Röntgenstr

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“…In a series of 644 screening MRIs to rule out retrocochlear hearing loss, Mirza et al [11] reported a 5% incidence of middle ear/ mastoid disease. In a study performed by Meredith et al [5] 28 patients with increased fluid signal on T2-weighted MRI interpreted as mastoiditis by radiologists were examined and very low prevalence of otologic symptoms and clinical signs were found and no cases of real clinical mastoiditis were observed. It was reported that MRI is not an effective screening modality for mastoiditis [5].…”

Section: Discussionmentioning

confidence: 99%

“…National Otology Neurootology Congress, Turkish Republic of Northern Cyprus, 12-16 May 2010. cells on T2-weighted MRI is usually interpreted as mastoiditis by radiologists. These mostly asymptomatic patients are usually either unnecessarily treated by general practioners or refered to otorhinolaryngology clinics [5].…”

Section: Introductionmentioning

confidence: 99%

Incidental diagnosis of mastoiditis on MRI

Polat

Aksoy

Serin

et al. 2011

Eur Arch Otorhinolaryngol

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The aim of this study was to document patients with clinical mastoiditis who were reported to have mastoiditis by radiologists due to increased fluid signal intensity in the mastoid air cells on magnetic resonance imaging (MRI). Brain and temporal bone MRI reports between January 2004 and November 2009 were obtained from the radiology units of four different hospitals of the same Health Care Group. MRI reports for keyword mastoiditis and 406 patients were reported to have radiological mastoiditis on MRI due to increased fluid signal intensity. Otoscopic examination findings of 275 of these 406 radiological mastoiditis patients were documented and compared with MRI reports for clinical infectious otological disease. Forty-eight (17, 45%) (48/275) patients were found to have clinical otological disease on examination. The remainder of the patients (227/275, 82%) did not show any evidence of clinical otologic infectious disease. Of these 48 patients, 18 patients (37, 5%) had eustachian tube dysfunction, 13 patients (27%) had serous otitis media, nine patients (9%) had chronic otitis media, five patients (10%) had tympanosclerosis, and three patients (6%) had acute otitis media. The results of this study showed that MRI is not an effective diagnostic tool for mastoiditis. 82% of the MRI mastoiditis did not show clinical mastoiditis contradicting MRI reports. Fluid signal in the mastoid on MRI should not always be interpreted as mastoiditis by radiologists. Radiological mastoiditis does not necessarily point out to clinical mastoiditis.

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“…(4) and Meredith et al. (5) found that fluid signal intensity in the mastoid should not be interpreted as a sign of mastoiditis. Based on our own clinical experience we fully agree that fluid retention in the mastoid is a common incidential finding of little clinical consequence, if signs of inflammation are otherwise absent.…”

Section: Discussionmentioning

confidence: 99%

Magnetic resonance imaging in acute mastoiditis

Platzek¹,

Kitzler²,

Gudziol

et al. 2014

Acta Radiologica Short Reports

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BackgroundIn cases of suspected mastoiditis, imaging is used to evaluate the extent of mastoid destruction and possible complications. The role of magnetic resonance imaging (MRI) in mastoiditis has not been systematically evaluated.PurposeTo assess the diagnostic performance of MRI in patients with suspected acute mastoiditis.Material and MethodsTwenty-three patients with suspected acute mastoiditis were included in this retrospective study (15 boys, 8 girls; mean age, 2 years 11 months). All patients were examined on a 1.5 T MRI system. The MRI examination included both enhanced and non-enhanced turbo spin echo (TSE), diffusion-weighted images, and venous time-of-flight magnetic resonance angiography (TOF MRA) for the evaluation of the venous sinuses. Surgical findings, as well as clinical and imaging follow-up were used as the standard of reference. The sensitivity and accuracy of MRI for mastoiditis and subperiosteal abscesses was calculated.ResultsTwenty (87%) of 23 patients had mastoiditis, and 12 (52%) of 23 patients had a subperiosteal abscess in addition to mastoiditis. Mastoiditis and subperiosteal abscesses were identified by MRI in all cases. Sensitivity for mastoiditis was 100%, specificity was 66%, and accuracy was 86%. Sensitivity for subperiosteal abscesses was 100% and accuracy was 100%.ConclusionMultiparametric MRI has high accuracy for mastoiditis and subperiosteal abscesses.

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Mastoiditis on MRI: Fact or Artifact?

Cited by 15 publications

References 8 publications

Incidental Findings in Paranasal Sinuses and Mastoid Cells: A Cross-Sectional Magnetic Resonance Imaging (MRI) Study in a Pediatric Radiology Department

Incidental Findings in Paranasal Sinuses and Mastoid Cells: A Cross-Sectional Magnetic Resonance Imaging (MRI) Study in a Pediatric Radiology Department

Incidental diagnosis of mastoiditis on MRI

Magnetic resonance imaging in acute mastoiditis

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