ROLE OF HIGH-RESOLUTION COMPUTED TOMOGRAPHY TEMPORAL BONE IN THE EVALUATION OF UNSAFE CHRONIC SUPPURATIVE OTITIS MEDIA

Background: High Resolution Computed Tomography (HRCT) has widely replaced conventional techniques (X-Ray Mastoid bone) for temporal bone imaging. The most significant use of computed tomography lies in evaluation of cases of Chronic Suppurative Otitis Media (CSOM). The objective of the study was to evaluate the usefulness of HRCT scanning of temporal bone in defining the extent and severity of disease in patients with CSOM, thereby altering the surgical plan and outcome.Methods: This prospective study was conducted at a tertiary care hospital in Ahmedabad. After obtaining approval from IEC (Institutional Ethical Committee), study was carried out on 50 patients diagnosed with CSOM of attico-antral type. Written informed consent of all patients was taken before enrollment in the study. HRCT scan findings were reviewed and correlated with per-operative findings.Results: Out of total 50 patients of CSOM, 26 (52%) were males. Majority of the patients (70%) were in the age group of 11 to 30 years. Left ear was involved in 40% of the patients. Majority of the patients (80%) presented with chief complaint of otorrhoea. In the present study, External Auditory Canal (EAC) was seen normal in majority of patients (82%) both radio logically and per operatively. HRCT scan was found to be very sensitive (96%) in diagnosing cholesteatoma. The sensitivity of HRCT for diagnosing disease in epitympanum, antrum and aditus was found to be 100%, 97% and 88% respectively. CT scans diagnosed erosion of malleus with 100% sensitivity and specificity and erosion of incus with 91% sensitivity and 100% specificity.Conclusions: HRCT was helpful in determining the anatomy of the middle ear and mastoid, and accurately predicted the extent of the disease process of CSOM.

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High-resolution computed tomography (HRCT) in pediatric and adult patients with unsafe chronic suppurative otitis media (CSOM) and its surgical correlation

Journal of Family Medicine and Primary Care ◽

10.4103/jfmpc.jfmpc_455_20 ◽

2020 ◽

Vol 9 (8) ◽

pp. 4067

Author(s):

Paramdeep Singh ◽

Ramandeep Singh ◽

Rubal Rai ◽

Sanjay Sethi ◽

AmritPal Singh Ahluwalia ◽

...

Keyword(s):

Computed Tomography ◽

High Resolution ◽

Otitis Media ◽

Adult Patients ◽

Chronic Suppurative Otitis Media ◽

High Resolution Computed Tomography ◽

Suppurative Otitis Media

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Evaluation of Temporal Bone Cholesteatoma and the Correlation between High Resolution Computed Tomography and Surgical Finding

Clinical Medicine Insights Ear Nose and Throat ◽

10.4137/cment.s10681 ◽

2013 ◽

Vol 6 ◽

pp. CMENT.S10681 ◽

Cited By ~ 6

Author(s):

Mohammed A. Gomaa ◽

Abdel Rahim A. Abdel Karim ◽

Hosny S. Abdel Ghany ◽

Ahmed A. Elhiny ◽

Ahmed A. Sadek

Keyword(s):

Computed Tomography ◽

High Resolution ◽

Temporal Bone ◽

Middle Ear ◽

High Resolution Computed Tomography ◽

Intravenous Contrast ◽

Suppurative Otitis Media ◽

Middle Ear Cholesteatoma ◽

Intracranial Complications

Background Acquired cholesteatomas are commonly seen in patients less than 30 years. There is a typical history of recurrent middle ear infections with tympanic membrane perforation. The diagnosis of cholesteatoma is usually made on otologic examination. Objective The aim of the work was to study the role of high resolution computed tomography (HRCT) in detecting, evaluating, and diagnosing middle ear cholesteatoma. Patients and methods This was a prospective study that included 56 consecutive patients with chronic suppurative otitis media, unsafe type cholesteatomas. Each patient was subjected to full clinical evaluation, and HRCT examination. Intravenous contrast media was used in some patients with suspected intracranial complication. Preoperative radiological data were correlated with data related to surgical findings. Results The study showed that a high incidence of cholesteatoma in the third decade of life. The scutum and lateral attic wall were the most common bony erosions in the middle ear bony wall (64.3%), and the incus was the most eroded ossicle in the middle ear (88.2%). Sclerosing of mastoid air cells were encountered in 60.7% of patients and the lateral semicircular canal was affected in 9%, while facial canal erosion was found in 21.4%. Temporal bone complications are more common than intracranial complications. HRCT findings were compared with operative features; the comparative study included the accuracy and sensitivity of HRCT in detecting cholesteatoma (92.8%), its location and extension (96.4%), ossicular chain erosion (98%), labyrinthine fistula and intracranial complications (100%). Conclusion The important role of HRCT scannig lies on the early detection of cholesteatoma, and more conservative surgical procedures can be used to eradicate the disease.

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High Resolution Computed Tomography (HRCT) Evaluation of Temporal Bone Infectious Pathologies - A Study from a Tertiary Care Hospital, Valsad, Gujarat

Journal of Evidence Based Medicine and Healthcare ◽

10.18410/jebmh/2021/639 ◽

2021 ◽

Vol 8 (41) ◽

pp. 3521-3527

Author(s):

Ankurkumar Zaverbhai Patel

Keyword(s):

Computed Tomography ◽

High Resolution ◽

Inner Ear ◽

Temporal Bone ◽

Otitis Media ◽

Care Hospital ◽

High Resolution Computed Tomography ◽

Suppurative Otitis Media ◽

Female Ratio ◽

Intracranial Complications

BACKGROUND The complicated middle and inner ear anatomy challenge the diagnostic ease in radiological evaluation of the temporal bone. Their tiny dimension and close neighbouring of the structures limited the successful imaging facilities for long periods of time. Conventional radiological procedures have been inadequate for diagnostic imaging but recently multidirectional tomography and high-resolution computed tomography (HRCT) has gained importance. Inflammatory and infectious diseases of the temporal bone are a major indication to perform highresolution CT. Such studies allow one to evaluate the extent of the disease in the soft tissues and in the bony structures of the temporal bone. The purpose of this study was to evaluate temporal bone infectious pathologies using high resolution computed tomography (HRCT). METHODS The study is completely observational & retrospective type of study. HRCT of temporal bone was carried out on 50 cases with SIEMENS SOMATOM emotion 16 slice CT scan machine, GMERS Medical College & Hospital, Valsad, Gujarat depending upon the availability from February 2019 to January 2020 including all age groups, both sexes with suspicion of temporal bone infective pathologies based on sign and symptoms. RESULTS Out of 50 patients, 38 patients were diagnosed with chronic suppurative otitis media (CSOM) and 12 patients were diagnosed with acute suppurative otitis media (ASOM), of which 65 % of CSOM showed cholesteatoma formation. All the patients with ASOM showed air-fluid levels. Male to female ratio was nearly 1.77 : 1. Out of which, 52 % were paediatric patients. Common symptoms were ear, discharge, headache and deafness. Most commonly affected site was right side. There were 6 extra cranial and 2 intracranial complications seen. CONCLUSIONS Due to the ability to delineate the bony and soft tissue anatomy with high accuracy, high-resolution CT is the imaging modality of choice for topographic evaluation of temporal infective pathologies and their extracranial and intracranial complications. KEYWORDS ASOM, CSOM, Cholesteatoma, Air Fluid Level, Pneumatization, Ossicles, Middle Ear, Inner Ear, Complications

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Correlation between high resolution computed tomography of temporal bone and intraoperative findings in chronic otitis media

MedPulse International Journal of Radiology ◽

10.26611/10131816 ◽

2021 ◽

Vol 18 (1) ◽

pp. 22-28

Author(s):

Varsha Rathi ◽

Keyword(s):

Computed Tomography ◽

High Resolution ◽

Temporal Bone ◽

Otitis Media ◽

Chronic Otitis Media ◽

High Resolution Computed Tomography

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Role of High Resolution Computed Tomography in Evaluation of Pathologies of Temporal Bone

JOURNAL FOR CLINICAL AND DIAGNOSTIC RESEARCH ◽

10.7860/jcdr/2015/12268.6508 ◽

2015 ◽

Cited By ~ 2

Author(s):

Chuni Lal Thukral

Keyword(s):

Computed Tomography ◽

High Resolution ◽

Temporal Bone ◽

High Resolution Computed Tomography

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

International Journal of Otorhinolaryngology and Head and Neck Surgery ◽

10.18203/issn.2454-5929.ijohns20203197 ◽

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

Background: 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.Methods: 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. Results: Upon analysis, in diseased and healthy ears, the coincidence of X-ray and HRCT findings was 63.33% and 80% respectively.Conclusions: 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.

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