scholarly journals A study of the correlation between the pre-operative high resolution computed tomography findings and intra-operative findings in chronic otitis media-squamosal type

2020 ◽  
Vol 6 (2) ◽  
pp. 273
Author(s):  
Gopinathan N. Pillai ◽  
Anjana Mary Reynolds ◽  
Melwin Tom
Keyword(s):  
Computed Tomography ◽  
High Resolution ◽  
Temporal Bone ◽  
Otitis Media ◽  
Chronic Otitis Media ◽  
Hearing Preservation ◽  
High Resolution Computed Tomography ◽  
Surgical Methods ◽  
Hrct Temporal Bone ◽  
Operative Findings

<p class="abstract"><strong>Background:</strong> Chronic otitis media (COM) is characterized by ear discharge and hearing loss. There are two types of COM depending on the presence or absence of cholesteatoma. COM with cholesteatoma is termed as COM squamosal type and COM without cholesteatoma is termed COM mucosal type. COM squamosal type is associated with potential complications. If cholesteatoma is detected early, less invasive surgical methods can be used for hearing preservation and make ear safe from recurrent infections. A proper clinical examination can most often diagnose a cholesteatoma but require a high resolution computed tomography (HRCT) scan to assess the extent of the disease and potential complications. But most often the intra operative findings may not correlate with the HRCT findings. The aim of the study was to evaluate the clinical presentation of COM squamosal disease, preoperative HRCT and intra-operative findings and formulate a proper surgical intervention to avoid complications.  </p><p class="abstract"><strong>Methods:</strong> This is a comparative study of the pre-operative HRCT and intra-operative findings in COM squamosal type. In the present study of 35 patients with squamosal disease, the HRCT findings were compared with intra-operative findings.</p><p class="abstract"><strong>Results:</strong> The study showed a good correlation between pre-operative HRCT of temporal bone and intra operative finding. The findings are statistically significant (p&lt;0.001).</p><p class="abstract"><strong>Conclusions:</strong> The study shows a good correlation between pre-operative HRCT temporal bone and intra-operative findings.</p>

scholarly journals Comparative evaluation of mastoid pneumatization pattern using X-ray mastoid and high-resolution computed tomography temporal bone in unilateral squamosal chronic otitis media

2020 ◽  
Vol 6 (8) ◽  
pp. 1469
Author(s):  
Akanksha Dhiman ◽  
Ankur Gupta ◽  
Nishi Sharma ◽  
Akhilandeswari Prasad
Keyword(s):  
Computed Tomography ◽  
High Resolution ◽  
Temporal Bone ◽  
Otitis Media ◽  
Chronic Otitis Media ◽  
Anatomical Variations ◽  
High Resolution Computed Tomography ◽  
Mastoid Pneumatization ◽  
X Ray ◽  
Hrct Temporal Bone

<p class="abstract"><strong>Background:</strong> Chronic otitis media (COM) affects 0.5-30% of individuals in any community and over 20 million people are estimated to suffer from this condition worldwide. COM often evolves in a continuum. Squamosal disease is more commonly found in poorly pneumatized bones, but whether the sclerosis is relevant to the etiology of the disease or is caused by it, has not been fully resolved. Our study aimed at comparing the mastoid pneumatization patterns obtained using X-ray mastoid and high-resolution computed tomography (HRCT) temporal bone. It was an interventional study.</p><p class="abstract"><strong>Methods:</strong> Sixty patients of unilateral squamosal COM, aged more than 8 years, underwent X-ray mastoid Schuller’s view and HRCT temporal bone, using Philips extended brilliance 48 slice CT.  </p><p class="abstract"><strong>Results:</strong> Upon analysis, in diseased and healthy ears, the coincidence of X-ray and HRCT findings was 63.33% and 80% respectively.</p><p class="abstract"><strong>Conclusions:</strong> HRCT temporal bone should be done in all cases of squamosal COM to know the extent of the disease, pneumatization patterns and the presence of anatomical variations.  </p>

scholarly journals Comparative Study of Preoperative Radiological Findings with Intraoperative Surgical Findings in Squamosal Type of Chronic Otitis Media

2021 ◽  
Vol 10 (25) ◽  
pp. 1862-1865
Author(s):  
Sanjana Pradeep ◽  
Swaroop Dev ◽  
Jyothi Swarup Raju ◽  
Shravya Pasunuti
Keyword(s):  
Temporal Bone ◽  
Otitis Media ◽  
Semicircular Canal ◽  
Chronic Otitis Media ◽  
Sigmoid Sinus ◽  
Lateral Semicircular Canal ◽  
High Resolution Computed Tomography ◽  
Tissue Mass ◽  
Hrct Temporal Bone ◽  
A Prospective Study

BACKGROUND Chronic otitis media (COM) of squamosal type is associated with cholestatoma with potential complications. Clinical examination and high resolution computed tomography (HRCT) scans are necessary to assess the disease site and extension. The purpose of the study was to compare the preoperative HRCT findings with the intraoperative surgical findings in squamosal type of chronic otitis media as well as various parameters in HRCT temporal bone and intraoperative findings. METHODS A prospective study was conducted on 30 patients aged between 18 and 60 years of both the genders who presented with chronic otitis media squamosal type, for a period of 22 months who attended the outpatient department of ENT. RESULTS HRCT findings and intraoperative findings were compared and results were analysed. Facial canal erosion (P - 0.0031), tegmen plate erosion (P - 0.0001), sigmoid sinus plate erosion (P - 0.002) were found to be statistically significant. Lateral semicircular canal fistula (P - 0.36) and ossicular status malleus (P - 1.000), incus (P - 0.949), stapes suprastructure (P - 0.984), and stapes footplate erosion (P - 0.977) were found to be statistically insignificant. CONCLUSIONS In our study, HRCT imaging for COM squamosal type, accurately depicted the soft tissue mass, erosion of tegmen plate, sigmoid sinus plate, scutum, lateral semicircular canal fistula, incus and suprastructure of stapes erosion and the same were found intraoperatively as well. Our study showed good comparison between the preoperative HRCT scans and the surgical findings in cholesteatoma cases. HRCT is confirmed to be valuable in the diagnosis and in guiding the surgical management of cholesteatoma. KEY WORDS Chronic Otitis Media, Cholesteatoma, HRCT Temporal Bone, Modified Radical Mastoidectomy

scholarly journals Diagnostic Efficacy of High Resolution Temporal Bone Computed Tomography on Bony Defect in Chronic Otitis Media

2008 ◽  
Vol 19 (2) ◽  
pp. 183-188
Author(s):  
Yoon Seok Choi ◽  
Eun Chae Jung ◽  
Young-Soo Kim ◽  
Young-Ki Woo ◽  
Si-Youn Song ◽  
...  
Keyword(s):  
Computed Tomography ◽  
High Resolution ◽  
Temporal Bone ◽  
Otitis Media ◽  
Chronic Otitis Media ◽  
Bony Defect ◽  
Diagnostic Efficacy

scholarly journals Comparison of preoperative high resolution computerized tomography of temporal bone with intra-operative findings in patients with cholesteatoma

2021 ◽  
Vol 7 (3) ◽  
pp. 440
Author(s):  
Abdunnasar Moodem Pilakkal ◽  
Santhi Thankappan Pillai ◽  
Asif Iqbal Kunhanakkal
Keyword(s):  
High Resolution ◽  
Temporal Bone ◽  
Chronic Otitis Media ◽  
P Value ◽  
High Resolution Computed Tomography ◽  
Chi Square ◽  
Predictive Values ◽  
The Difference ◽  
Operative Findings ◽  
Contrast Ct

<p class="abstract"><strong>Background:</strong> Aim was to study the correlation between high resolution computed tomography (HRCT) scan and intraoperative findings during surgery in cases of chronic otitis media with cholesteatoma.</p><p class="abstract"><strong>Methods:</strong> This was a descriptive study conducted on 72 patients with acquired cholesteatoma at Govt TD Medical College, Alappuzha for a period of 18 months. All the patients were subjected to HRCT of the temporal bone. Radiological correlation was done with the intra-operative findings. Sensitivity, specificity, positive and negative predictive values were calculated.   </p><p class="abstract"><strong>Results:</strong> Total 24 (33.3%) patients had holotympanic cholesteatoma, 21 (29.2%) had involvement of the attic alone and 16 (22.2%) had attic and antrum involved. 100% correlation was found with bony wall erosions, whereas 96.9% and 75% sensitivity were noted in incus and stapes erosions respectively. 100% specificity was obtained in facial canal and sinus plate erosion, while a specificity of 96.9% in tegmen erosion and 98% in were seen in malleus erosion. By chi square test the difference in correlation was not significant (p value&gt;0.01). Good correlation was seen for lateral semicircular canal fistula. Contrast CT is more specific, but MRI with diffusion weighted sequences is the best in imaging cholesteatoma, especially residual lesions.  </p><p class="abstract"><strong>Conclusions:</strong> Good correlation was found between HRCT scan and intra-operative findings in cases of cholesteatoma in relation to bony wall erosion of the surrounding structures. CT scan alone cannot differentiate soft tissue masses.</p>

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