Radiological changes in anatomy of temporal bone in cases of unsafe chronic suppurative otitis media: A retrospective study

CSOM is defined as chronic inflammation of mucoperiosteal lining of middle ear cleft, i.e. eustachian tube, middle ear and mastoid. Unsafe CSOM is associated with marginal/ attic perforations and cholesteatoma, which may produce multiple complications. It is a potentially serious condition as it can progressively enlarge and cause erosion into neighbouring structures, giving rise to serious complications. HRCT provides information regarding the extent of disease and depicts anatomical variations, which may lead to complications during surgery. The aim of this study was to assess the usefulness of HRCT imaging of temporal bone in cases of unsafe CSOM. In an IRB approved cross-sectional observational study of consecutive 50 patients with clinically diagnosed unsafe CSOM, HRCT of temporal bone was performed. Patients not fit for CT scan e.g., pregnant patients were excluded. HRCT was performed on Philips Brilliance 40 slice CT. Collimation was set at 190mm with scan time of 4.79 seconds with kVp of 140 and mAs of 350. HRCT findings of these patients were compared with the intraoperative findings of those patients who underwent surgery. Standardised statistical methods were used. It was found to be male predominant disease with a mean age of 25.5 years. The most common finding on HRCT was soft tissue density involving the middle ear cleft. Cholesteatoma caused ossicular erosion with the incus being most commonly affected. This study concludes that HRCT should be done in all patients of unsafe CSOM to know the extent of disease which guide in surgical approach and treatment plan.

show abstract

“…Gerami et al showed high male predominance with male to [5] female ratio of 2.48:1 and Sharma et al also showed male predominance.…”

Section: Discussionmentioning

confidence: 97%

“…CLINICAL SPECTRUM [5] Age: Sharma et al studied 50 patients of unsafe CSOM with most common age group being 21-30 years. In our study too, we have found majority of the patients were aged less than 30 years which is similar to [6].…”

Section: Discussionmentioning

confidence: 99%

High Resolution Computed Tomography Findings of Temporal Bone in Patients With Unsafe Chronic Suppurative Otitis Media.

Shami

Raunaq

Chumber

et al. 2021

ijsr

View full text Add to dashboard Cite

show abstract

“…2,4,7 However, Wang EL et al 14 study showed less sensitivity (65%) and specificity (72%) in identifying cholesteatoma and they stated that it was due to HRCT inability to differentiate it from soft tissue density based on Hounsfield Units (HU) value alone. Vinith Kumar Sharma et al 15 in their study quoted that HRCT is less accurate in differentiating the granulation tissue from cholesteatoma and requires clinical correlation. Bone erosion was seen in 25 cases intra operatively of which 22 cases were detected by HRCT.…”

Section: Discussionmentioning

confidence: 99%

Correlation of intraoperative and HRCT of temporal bone findings in CSOM

Pramod¹,

Raghuraj²

2020

IJOAS

View full text Add to dashboard Cite

Introduction:The aim of the study was to assess diagnostic role of High Resolution Multi-detector Computed Tomography (HRMDCT) of temporal bone in the evaluation of Chronic Suppurative Otitis Media (CSOM) and to correlate intraoperative and HRCT findings in CSOM in selective cases. Material and Methods: 57 patients presented with CSOM in ENT department, referred to Radio diagnosis department were included in this study. The suspected patients were subjected to HRCT of Temporal bone using GE Bright speed Elite16 multi slice CT machine with 0.6mm plain axial and coronal slices with multi planar reformations. Results: The reported findings were correlated with clinical and surgical findings in subset of cases. Sensitivity, Specificity of HRMDCT with respect to clinical and surgical correlation in selective cases was evaluated. Among 30 surgical cases, most of them were atticoantral (53.4%) followed by tubotympanic CSOM (46.6%). On surgical correlation, HRCT has a high sensitivity (84.36%), specificity (80%), PPV of 90.4% and accuracy of 90% in the diagnosis of type of CSOM. A significant association with p value<0.05 was seen for cholesteatoma, ossicle, bone, masotoiditis, scutum, tegmen and prussack space involvement. HRCT had a high sensitivity and specificity in detection of cholesteatoma (86.4%, 88.9%). Conclusion: a good sensitivity, specificity of HRCT of temporal bone has a major role in the diagnosis of type of CSOM with respect to surgical correlation. HRCT of Temporal bone affords essential information regarding the disease extent, associated complications, aiding clinicians in deciding the appropriate surgical planning and management, thereby making HRMDCT an essential pre workup diagnostic tool.

show abstract

“…4 The aptitude of high-resolution CT to portray the station of structure of temporal bone presents a major advancement in defining pathology before surgical exploration in patients with cholesteatoma. 5 The diagnosis of cholesteatoma is normally made on otological findings in situations where diagnosis is not clear. HRCT temporal bone may show a soft-tissue mass with distinguishing displacement of ossicles and erosion of bone.…”

Section: Discussionmentioning

confidence: 99%

Assessment of Temporal Bone Diseases by High Resolution Computed Tomography – Institution based Study

Sankhla¹,

Dubey²

2019

IJCMSR

View full text Add to dashboard Cite

show abstract

Radiological changes in anatomy of temporal bone in cases of unsafe chronic suppurative otitis media: A retrospective study

Cited by 7 publications

References 0 publications

High Resolution Computed Tomography Findings of Temporal Bone in Patients With Unsafe Chronic Suppurative Otitis Media.

High Resolution Computed Tomography Findings of Temporal Bone in Patients With Unsafe Chronic Suppurative Otitis Media.

Correlation of intraoperative and HRCT of temporal bone findings in CSOM

Assessment of Temporal Bone Diseases by High Resolution Computed Tomography – Institution based Study

Contact Info

Product

Resources

About