Study of radiological findings in high resolution computed tomography (HRCT) temporal bone in squamous chronic otitis media (COM): A hospital based cross sectional study

2019 ◽  
Vol 9 (3) ◽  
pp. 93-96
Author(s):  
Tapan Shah ◽  
◽  
Hiren Soni ◽  
Keyword(s):  
Computed Tomography ◽  
High Resolution ◽  
Temporal Bone ◽  
Chronic Otitis Media ◽  
Cross Sectional Study ◽  
Sectional Study ◽  
Radiological Findings ◽  
High Resolution Computed Tomography ◽  
Cross Sectional ◽  
Hrct Temporal Bone

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 HIGH RESOLUTION COMPUTED TOMOGRAPHY IN THE EVALUATION OF TEMPORAL BONE PATHOLOGY

2021 ◽  
Vol 5 (9) ◽  
Author(s):  
Hari Ram Jat ◽  
Sheena Daswani ◽  
Mark Sheldon ◽  
Neel Patel
Keyword(s):  
Computed Tomography ◽  
High Resolution ◽  
Temporal Bone ◽  
Cross Sectional Study ◽  
Bone Pathology ◽  
High Resolution Computed Tomography ◽  
Cross Sectional ◽  
Anatomic Structure ◽  
Cranial Nerve Palsies

Introduction: The temporal bone is a complex anatomic structure that contains the organs of hearing and balance and has direct contact with brainstem, cerebellum and temporal lobe of brain. Radiographic assessment of temporal bone is difficult owing to complicated anatomical structure of middle and inner ear. High resolution computed tomography (HRCT) - a modification of routine CT produces images with higher contrast and a better spatial resolution. HRCT has the advantage of topographic visualization, devoid of artifacts from superimposition of structures. It provides information not only about bony outline but also soft tissue changes making it possible for the accurate assessment of pathology prior to surgical exploration regarding location, extent and complication of the disease. Material and methods: This was a cross sectional study of 50 patients who were clinically suspected of having symptoms related to the temporal bone like hearing loss, otorrhea, otalgia, tinnitus, vertigo, ear bleed, cranial nerve palsies, fever, ataxia etc were referred and subjected to HRCT of the temporal bone at Geetanjali Medical College and Hospital (Udaipur) between Nov 2017 and June 2019. Results: CSOM and Cholesteatoma were the most common diseases found by HRCT and Intra-op/Follow-up scan followed by Fractures, acoustic neuroma, Glomus tympanicum and Atretic EAC. Almost all the lesions were correctly detected by HRCT when confirmed with Intra-op/follow up findings. Conclusion: HRCT can very accurately detect Temporal bone pathology. Keywords: HRCT, CSOM, CT

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>

Diagnostic Accuracy of HRCT Chest in Detection of Covid-19 Infection Taking PCR as Gold Standard

2021 ◽  
Vol 15 (6) ◽  
pp. 1679-1681
Author(s):  
Afaque Ali ◽  
Majid Shaikh ◽  
Ahsanullah . ◽  
Adeel Ahmed ◽  
Abid Ali Sahito ◽  
...  
Keyword(s):  
Computed Tomography ◽  
High Resolution ◽  
Diagnostic Accuracy ◽  
Predictive Value ◽  
Gold Standard ◽  
Cross Sectional Study ◽  
Radiology Department ◽  
High Resolution Computed Tomography ◽  
Cross Sectional ◽  
Head Of Department

Objective: To determine the diagnostic accuracy of High-resolution computed tomography (HRCT) chest in detection of covid-19 infection taking PCR as gold standard. Study Design: Cross-sectional study Setting: Radiology department of Tabba Hospital, Karachi. Duration: From March 2019 to September 2020 Material and Methods: All the clinically suspected patients of covid-19, of any age, both genders and those referred to radiology for High-resolution computed tomography (HRCT) chest to detect the covid-19 infection were included. After two days, patients’ PCR reports were collected from the ward, after taking informed consent and permission from head of department. The diagnostic accuracy of HRCT was established with respect to sensitivity, PPV, NPV, and specificity by taking PCR as gold standard. All the information was collected via study proforma. Results: Total 70 patients suspected for COVID-19 were studied, and the patients’ mean age was 58.23±9.52 years. Males were in majority 54(77.1%). As per HRCT findings, COVID-19 infection was positive in 46 patients, however, 48 patients were detected positive for COVID-19 infection as per PCR findings. In the detection of COVID-19 infection, HRCT chest showed sensitivity of 91%, specificity of 90%, PPV of 83%, NPV of 84% and diagnostic accuracy of 94%; by taking PCR as gold standard. Conclusion: High-resolution computed tomography (HRCT) is a reliable diagnostic approach in promptly detecting the COVID-19; with 91% sensitivity, 90% specificity, 83% positive predictive value, 84% negative predictive value and 94% diagnostic accuracy. Keywords: Accuracy, HRCT, COVID-19

scholarly journals A Cross-Sectional Study of Radiological Profile of Interstitial Lung Disease Using High Resolution Computed Tomography of Patients Attending Medical College at Ahmedabad

2021 ◽  
Vol 8 (17) ◽  
pp. 1127-1132
Author(s):  
Nikunj C. Desai ◽  
Nilesh P. Parkar ◽  
Asutosh N. Dave
Keyword(s):  
Computed Tomography ◽  
High Resolution ◽  
Interstitial Lung Disease ◽  
Lung Disease ◽  
Interstitial Pneumonia ◽  
Usual Interstitial Pneumonia ◽  
Cross Sectional Study ◽  
High Resolution Computed Tomography ◽  
Cross Sectional ◽  
Acute Interstitial Pneumonia

BACKGROUND Interstitial lung disease (ILD) is an unpredictable diffuse parenchymal lung disease, which involves interstitium of lung (tissue around the alveoli of the lungs). High resolution computed tomography (HRCT) is one of the confirmatory, easily accessible methodology for the conclusion and follow up assessment of interstitial lung disease. We wanted to study the normal HRCT patterns found with interstitial lung disease and contrastingly different HRCT designs and clinical information in differential determination of pulmonary fibrosis. We also wanted to study the different patterns of interstitial lung disease on high resolution computed tomography and thereby provide accurate diagnosis and management to the patients. METHODS The study was a hospital based prospective, cross sectional study. In the present study, total fifty patients referred from Department of Medicine and Department of Pulmonary Medicine of GCS Medical College having suspicion of interstitial lung disease were studied from April 2019 to September 2019. All patients underwent HRCT thorax on 16 slice Siemens computerised tomography (CT) scan machine in recumbent position utilising usual HRCT protocol. Lung abnormalities were noticed and classified for explicit diagnosis of interstitial lung pathologies. RESULTS Most of the patients (N = 25) were found to be in the age group of 50 - 80 years (17 female & 8 male). Progressive dyspnoea (N = 47; 94 %) was the most common chief complaint. The most common form of interstitial lung disease was usual interstitial pneumonia (UIN) (N = 18; 36 %) in our study. Acute interstitial pneumonia (AIP) (N = 7; 14 %) and non-specific interstitial pneumonia, NSIP (N = 7; 14 %) were the next common interstitial lung diseases. CONCLUSIONS The most well-known interstitial lung disease seen in our examination was usual interstitial pneumonia. Cases of interstitial lung disease are on the rise. Interstitial lung disease should be ruled out in all patients with progressive dyspnoea, particularly when there are no obvious or known causes of dyspnoea. Clinical and laboratory findings, pulmonary function tests, history of exposure along with HRCT workup is indispensable for the identification or exclusion of interstitial lung disease. HRCT is also useful for the follow-up study. KEYWORDS Acute Interstitial Pneumonia (AIP), High Resolution Computed Tomography (HRCT), Interstitial Lung Disease (ILD), Nonspecific Interstitial Pneumonia (NSIP), Usual Interstitial Pneumonia (UIP)

scholarly journals Usefulness of High Resolution Computed Tomography scans in depicting the status of the middle ear structures

2019 ◽  
Vol 6 (2) ◽  
pp. 449
Author(s):  
Ponnam Bharath Kumar ◽  
Kiran Mai ◽  
Santosh Karpur
Keyword(s):  
Computed Tomography ◽  
High Resolution ◽  
Temporal Bone ◽  
Middle Ear ◽  
High Resolution Computed Tomography ◽  
Bony Labyrinth ◽  
The Status ◽  
Hrct Temporal Bone ◽  
Operative Assessment ◽  
Middle Ear Cleft

Background: Prior to surgery it is very important that the surgeon is fully aware, and he should have the clear picture as to the extent of the disease and the nature of the disease to give satisfactory surgical outcomes for the patient. HRCT (High resolution computed tomography) is one such guiding tool for the surgeon. The objective was to study usefulness of HRCT scan in attico-antral disease in depicting the status of the middle ear structures.Methods: A total of 30 patients were studied.  HRCT temporal bone was performed by using SIEMENS EMOTION 16 slice CT machine in axial plane and coronal images were reformatted. Findings of HRCT temporal bone were recorded.  Findings of mastoid exploration surgery were recorded. Report of HRCT of temporal bone was correlated with surgical findings and tabulated using percentages.Results: Surgery showed cholesteatoma in 26 (86.6%) patients. Epitympanum was involved in 29 (96.6%) patients in HRCT and 30 (100%) patients at surgery. Extension beyond middle ear cleft was seen in 4 (13.3%) patients in HRCT and 5 (16.6%) patients at surgery. Tympanic segment of facial canal was the most commonly involved, showing erosion in 10 (33.3%) patients in HRCT and 12 (40%) patients at surgery. Lateral SCC was the most commonly involved in bony labyrinth seen in 4 (13.3%) patients in both HRCT and surgery. Erosion of dural plate was seen in 6 (20%) patients in HRCT whereas 9 (30%) patients showed dural plate erosion at surgery.Conclusions: HRCT of temporal bone plays a promising role in pre-operative assessment of cholesteatoma as it depicts the extent of the disease and integrity of most of the middle ear structures.

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