Computed tomography and magnetic resonance imaging of pathologic conditions of the middle ear

Maroldi, Roberto; Farina, Davide; Palvarini, Laura; Marconi, Anna Maria; Gadola, E; Menni, Katiuscia; Battaglia, Giuseppe

doi:10.1016/s0720-048x(01)00376-x

Cited by 98 publications

(61 citation statements)

References 28 publications

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“…10,11 During mastoiditis, variable signal intensities of retained fluid and intratemporal enhancement can appear, explained by desiccation of fluids and overgrowth of granulation tissue, especially under chronic conditions. 8 According to Platzek et al 15 (2014) a sensitivity of 100% and specificity of 66% in diagnosing AM are possible, with Ն2 of these intramastoid findings: fluid accumulation, enhancement, or diffusion restriction. In most of our patients with AM, Ͼ50% opacification of air spaces occurred in all temporal bone subregions (Fig 2).…”

Section: Discussionmentioning

confidence: 99%

“…8 DWI was included in our protocol to detect purulent secretions and possible intratemporal abscesses. [16][17][18][19][20] On DWI, most patients (93%) showed variable degrees of signal increase in their mastoid effusions (Table 1).…”

Section: Discussionmentioning

confidence: 99%

“…While the usefulness of MR imaging in diagnosing intracranial AM spread has been demonstrated many times over, 1,[5][6][7][8][9] intratemporal findings of AM on MR imaging tend to be overlooked and information on their clinical relevance is scarce. Problems exist with overdiagnosing "mastoiditis" on MR imaging if it is based on intramastoid fluid signal alone.…”

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confidence: 99%

See 2 more Smart Citations

MR Imaging Features of Acute Mastoiditis and Their Clinical Relevance

Saat

Laulajainen‐Hongisto

Mahmood

et al. 2014

AJNR Am J Neuroradiol

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

MR Imaging Features of Acute Mastoiditis and Their Clinical Relevance

Saat

Laulajainen‐Hongisto

Mahmood

et al. 2014

AJNR Am J Neuroradiol

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“…It provides a detailed assessment of complex bony structures of the middle ear and mastoid cavity; thus, surgeons can visualize the extent of disease, status of the ossicular chain, presence of bony erosion, or existing cholesteatoma prior to surgery (2,3). HRCT has gained wide acceptance in the diagnostic workup of suppurative COM.…”

Section: Introductionmentioning

confidence: 99%

Why Do We Not Need CT in Patients Who Undergo Type I Tympanoplasty?

Demir¹,

Akyıldız²,

Çetin³

et al. 2014

Turk Arch Otolaryngol

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Objective: High-resolution computed tomography (HRCT) has gained wide acceptance in diagnostic work-up of suppurative chronic otitis media. Most ear surgeons order HRCT to make a rational operative plan, especially in the presence of symptoms, such as refractory otorrhea with bad odor, epithelial debris at retraction pockets, and defects in bony walls of the middle ear. The aim of this study was to show the lack of necessity of preoperative HRCT by evaluating its predictive value in patients who underwent type I tympanoplasty. Methods:The study included a patient group who underwent tympanoplasty with dry perforation and normal middle ear mucosa. The intraoperative findings of 43 patients were compared with preoperative HRCT and audiogram findings. Results:There was no significance between preoperative air conduction threshold and existence of ossicular erosion in HRCT. HRCT incorrectly predicted the presence of cholesteatoma in two patients. The positive predictive value of HRCT in detecting soft or granulation tissue was 4/14 (28.57%). The sensitivity and specificity of HRCT in the diagnosis of ossicular chain status were 9.09% and 90.62%, respectively. Conclusion:HRCT plays an important role in the assessment of patients with suppurative chronic otitis media and cholesteatoma. However, preoperative HRCT in patients who have undergone type I tympanoplasty is not necessary. It has no benefit and also leads patients to unnecessary radiation exposure.

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“…Key clinical signs include a bulging tympanic membrane, protruding pinna, abundant discharge from and pain in the ear, a high fever, and mastoid tenderness. 9 Patients presenting with advanced disease and late complications may also present with sepsis, meningeal symptoms, or facial nerve paralysis. In a retrospective review by Glynn et al, 4 retroauricular fluctuance reflective of a subperiosteal abscess was the only clinical sign significantly associated with the need for surgical intervention.…”

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confidence: 99%