Combination of CT and MRT in the diagnostic of middle ear cholesteatoma. Fusion technology is precise localization tool

Kosyakov, Sergey; Pchelenok, E.V.; Степанова, Е. А.; Tarasova, O.Yu.

doi:10.17116/otorino20218605190

Cited by 2 publications

(1 citation statement)

References 24 publications

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“…First, a large number of reports have mentioned the problem that the image cannot be completely fused after CT and non-EPI-DWI MRI. 18,19 This problem also occurred in this study, but the consistency of CT and non-EPI-DWI MRI fusion was greatly improved after re-collection of patients. Comparing the 2 groups of images, the following 2 reasons for the poor fusion effect of the CT and non-EPI-DWI MRI images have been found: (1) The patient's posture changed during CT and non-EPI-DWI MRI.…”

Section: Discussionmentioning

confidence: 62%

Selection of a Surgical Approach for Middle Ear Cholesteatoma Based on the Fusion Images of Non-Echo Planar Diffusion-Weighted MRI and CT

Cao,

Xu,

Jiang

et al. 2024

Ann Otol Rhinol Laryngol

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Purpose: This study aimed to explore the ability of fusion images of non-echo planar diffusion-weighted magnetic resonance imaging (non-EPI-DWI MRI) and computed tomography (CT) to accurately locate cholesteatoma and plan the surgical approach. Methods: In the first part, 41 patients were included. Their CT images and non-EPI DWMRI images were fused. The scope of cholesteatoma in the fusion image was compared with that in the surgical video to evaluate the capability to locate cholesteatoma. A total of 229 patients were included in the second part, and they were divided into 2 groups. We chose the surgical approach for the CT group and the fusion group, and compared the accuracy of surgical approaches in the CT group and the fusion group using the surgical records. Results: The location of cholesteatoma shown in the fusion images was almost identical to that observed during the operation (kappa = .862). The overall specificity and sensitivity of the fusion images in locating cholesteatoma were 94.12% and 93.06%, respectively. The accuracy of surgical approach selection based on the fusion images (99.02%) was higher than that of surgical approach selection based on the CT images (85.83%). Conclusion: It is recommended that the fusion images be used to locate the range of the cholesteatoma before operation.

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Section: Discussionmentioning

confidence: 62%

Selection of a Surgical Approach for Middle Ear Cholesteatoma Based on the Fusion Images of Non-Echo Planar Diffusion-Weighted MRI and CT

Cao,

Xu,

Jiang

et al. 2024

Ann Otol Rhinol Laryngol

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Comparative assessment of computed tomography and magnetic resonance imaging in the identification of the middle ear cholesteatoma

Степанова

Garov

2023

Almanac of Clinical Medicine

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Background: Chronic suppurative otitis media amounts up to 22.4% among all ear, nose and throat disorders. Its complication, a middle ear cholesteatoma, is one of the most frequent causes of patients' referral to an otologist. The literature on the preferential diagnostic method for the cholesteatoma is contradictory, despite that its main treatment approach is surgery. Therefore, it is important to identify the most valid diagnostic method, which would allow for the planning of the most effective surgical treatment. Aim: To compare sensitivity and specificity of computed tomography (CT) and magnetic resonance imaging (MRI) in the diagnosis of cholesteatoma, to assess the possibility of quantitative values of MRI diffusion limitation in cholesteatoma. Materials and methods: From 2015 to 2021, we examined 542 out- and in-patients (849 imagings of temporal bones) with chronic suppurative otitis media. The analysis of CT and MRI sensitivity and specificity included the data from 289 patient examinations, both with newly diagnosed cholesteatoma and having at least one past surgery and had their diagnosis verified intraoperatively and histologically. We analyzed the measured MRI diffusion coefficients from newly diagnosed and relapsed cholesteatoma. The MRI signal values were calculated for 266 masses from 238 patients. Results: MRI sensitivity for the diagnosis of cholesteatoma was 95.2%, specificity 81.2%. CT sensitivity and specificity for the diagnosis of cholesteatoma were 60.1 и 44.7%, respectively. There were no differences in the measured MRI diffusion coefficients between the relapsed and newly diagnosed cholesteatomas. The comparison of cholesteatoma signals with those from artifacts showed the overlapping in their mean values; therefore, it is impossible to rely only on the value of the diffusion coefficient. Conclusion: In the diagnosis of cholesteatomas, MRI is significantly more sensitive and specific than CT. No significant differences in MRI semiotics and the degree of MRI diffusion limitation at NON-EPI DWI (b1000) have been found for the cholesteatomas that had never been operated, and the relapsing cholesteatomas.

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Combination of CT and MRT in the diagnostic of middle ear cholesteatoma. Fusion technology is precise localization tool

Cited by 2 publications

References 24 publications

Selection of a Surgical Approach for Middle Ear Cholesteatoma Based on the Fusion Images of Non-Echo Planar Diffusion-Weighted MRI and CT

Selection of a Surgical Approach for Middle Ear Cholesteatoma Based on the Fusion Images of Non-Echo Planar Diffusion-Weighted MRI and CT

Comparative assessment of computed tomography and magnetic resonance imaging in the identification of the middle ear cholesteatoma

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