scholarly journals Cautionary High-resolution Computed Tomography Findings for the Presence of Facial Canal Dehiscence in Patients with Cholesteatoma

Cureus ◽  
2020 ◽  
Author(s):  
Deniz Baklacı ◽  
İhsan Kuzucu ◽  
İsmail Guler ◽  
Rauf Oğuzhan Kum ◽  
Müge Özcan
Keyword(s):  
Computed Tomography ◽  
High Resolution ◽  
Facial Canal ◽  
High Resolution Computed Tomography ◽  
Facial Canal Dehiscence ◽  
Canal Dehiscence

Facial canal dehiscence in patients with cholesteatoma: concordance between intraoperative inspection, computed tomography and neurophysiological findings

2019 ◽  
Vol 276 (7) ◽  
pp. 1915-1920
Author(s):  
Francisco Arias-Marzán ◽  
Gemma de Lucas-Carmona ◽  
Esteban Reinaldo Pacheco Coronel ◽  
Pedro Javier Perez Lorensu ◽  
Alejandro Jiménez-Sosa ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Facial Canal ◽  
Facial Canal Dehiscence ◽  
Canal Dehiscence

Prevalence of facial canal dehiscence and other bone defects by computed tomography

2020 ◽  
Vol 277 (10) ◽  
pp. 2681-2686
Author(s):  
Andrea Fabiola Hernandez-Trejo ◽  
Karla Paola Cuellar-Calderon ◽  
Jose Luis Treviño-Gonzalez ◽  
Masao Yamamoto-Ramos ◽  
Mario Alberto Campos-Coy ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Bone Defects ◽  
Facial Canal ◽  
Facial Canal Dehiscence ◽  
Canal Dehiscence

scholarly journals Diagnostic efficacy of high-resolution computed tomography findings in patients of chronic suppurative otitis media atticoantral type

2020 ◽  
Vol 6 (10) ◽  
pp. 1854
Author(s):  
Nikki Gajjar ◽  
Neena Bhalodiya ◽  
Simple Bhadania
Keyword(s):  
Soft Tissue ◽  
Temporal Bone ◽  
Facial Canal ◽  
Soft Tissue Density ◽  
High Resolution Computed Tomography ◽  
Suppurative Otitis Media ◽  
Tissue Density ◽  
Facial Canal Dehiscence ◽  
Operative Findings ◽  
Canal Dehiscence

<p><strong>Background: </strong>High resolution computed tomography (HRCT) provides information about anatomy and pathology of temporal bone and middle ear cleft, thus becoming important imaging modality in diagnosis and pre-operative planning in patients of chronic suppurative otitis media (attico-antral) CSOM (AA) type. The aim of study was to study disease extension and plan surgery accordingly in patients of CSOM (AA) and to study correlation between the HRCT findings and intra-operative findings of CSOM (AA) like soft tissue density mass, ossicular chain erosion, facial canal dehiscence, semi-circular canal erosion.</p><p><strong>Methods: </strong>Study of 70 patients clinically diagnosed of having CSOM (AA) in period between August 2018 to March 2020 was done at Sola civil hospital, Ahmedabad. All patients were advised HRCT temporal bone except those who had contraindications to CT scan, analysed and operated. Pre-operative CT-scan findings and intra-operative findings were compared for statistical analysis.</p><p><strong>Results: </strong>Soft tissue density was found in 100% of cases on HRCT temporal bone. Bony erosion seen in 25% of cases. 90% showed ossicular erosion. Lateral semi-circular canal fistula was observed in 10% of cases with facial canal dehiscence in 10% of cases. Intra-operative findings showed accuracy of HRCT in detecting soft tissue density to be 100%; bony erosion was observed in 25% cases. 10% patients had lateral semi-circular canal fistula. Facial canal dehiscence was seen in 15% cases.</p><strong>Conclusion: </strong>HRCT has proved quite useful and reliable to identify the disease extension before surgery and plan surgery accordingly.<p> </p>

scholarly journals Clinicoradiological correlation between preoperative high-resolution computed tomography findings and intraoperative findings in chronic otitis media (squamous type)

2021 ◽  
Vol 7 (5) ◽  
pp. 797
Author(s):  
Girish Mishra ◽  
Yojana Sharma ◽  
Sona Patel ◽  
Viral Patel
Keyword(s):  
Computed Tomography ◽  
High Resolution ◽  
Otitis Media ◽  
Chronic Otitis Media ◽  
Jugular Bulb ◽  
Facial Canal ◽  
High Resolution Computed Tomography ◽  
K Value ◽  
Tegmen Tympani ◽  
Good Agreement

<p class="abstract"><strong>Background:</strong> Chronic otitis media is a major health problem with significant morbidity. High-resolution computed tomography (HRCT) is extremely useful for middle ear pathology and extension of the disease. The objective was to study the correlation between preoperative HRCT and intraoperative findings in chronic suppurative otitis media (squamous type).</p><p class="abstract"><strong>Methods:</strong> This analytical study included 61 cases of chronic otitis media (squamous type). Preoperative HRCT findings were correlated with intraoperative findings. Sensitivity, specificity, PPV, NPV and kappa value were estimated.</p><p class="abstract"><strong>Results:</strong> Out of 61 cases 32 were males and 29 were females. Presence of cholesteatoma found on HRCT with 80% sensitivity with k value 0.83 suggesting very good agreement. About ossicular status k value of incus, malleus and stapes were 0.76, 0.65 and 0.54 respectively with sensitivity of 91%, 85% and 58% respectively. Other critical areas on HRCT like sigmoid sinus plate erosion, tegmen tympani dehiscence, scutum erosion, lateral semicircular canal erosion, facial canal erosion and jugular bulb were seen with k value was about 1, 0.8, 0.9, 0.82, 0.72 and 0.65 respectively. So, HRCT shows perfect radiosurgical agreement for sinus plate erosion, very good agreement for disease extension, incus erosion, tegmen tympani erosion, scutum erosion and LSCC erosion and fair agreement for malleus erosion, facial canal erosion and jugular bulb dehiscence and poor agreement for stapes erosion.</p><p class="abstract"><strong>Conclusions:</strong> HRCT is a reliable preoperative investigation in cases of chronic otitis media, squamosal type which would provide  a bird’s eye view in the disease process in the ear.</p>

Is there a relationship between mastoid pneumatisation and facial canal dimensions?

2019 ◽  
Vol 133 (7) ◽  
pp. 546-553
Author(s):  
M Inal ◽  
N Bayar Muluk ◽  
N Asal ◽  
M H Şahan ◽  
G Şimşek ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Retrospective Study ◽  
Multidetector Computed Tomography ◽  
Temporal Bone ◽  
Facial Canal ◽  
Computed Tomography Scans ◽  
Facial Canal Dehiscence ◽  
Older Subjects ◽  
The Right ◽  
Canal Dehiscence

AbstractObjectiveTo evaluate mastoid pneumatisation and facial canal dimensions.MethodIn this retrospective study, 169 multidetector computed tomography scans of temporal bone were reviewed. Facial canal dimensions were evaluated at the labyrinthine, tympanic and mastoid segments using axial and coronal multidetector computed tomography scans of temporal bone. Mastoid pneumatisation and facial canal dehiscence were evaluated. Facial canal dehiscence was measured if it was found to be present.ResultsThis study showed that facial canal dimensions decreased in pneumatised mastoids. Facial canal dimensions in females were smaller than in males. Facial canal dehiscence was detected in 5.9 per cent and 6.5 per cent of the patients on the right and left sides, respectively. No correlations were found between facial canal dehiscence and mastoid pneumatisation. The length of dehiscence was 1.92 ± 0.44 mm (range, 0.86–2.51 mm) on the left side. In older subjects, left facial canal dehiscence was detected more, and the length of the dehiscence increased.ConclusionThis study concluded that during surgery, facial canal dehiscence should be kept in mind in order to avoid complications.

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