scholarly journals A STUDY OF RADIOLOGICAL CHANGES IN CSOM AND THEIR CO-RELATION WITH INTRA-OPERATIVE SURGICAL FINDING

2020 ◽  
Vol 4 (12) ◽  
Author(s):  
Vishal Hansrajani ◽  
Navin Agrawal ◽  
Chhavi Agrawal ◽  
Kriti Shrivastav ◽  
Parul Parmar ◽  
...  
Keyword(s):  
Soft Tissue ◽  
Ct Scan ◽  
Temporal Bone ◽  
Middle Ear ◽  
Chronic Otitis Media ◽  
Tissue Changes ◽  
Radiological Changes ◽  
Soft Tissue Changes ◽  
Hrct Temporal Bone ◽  
Middle Ear Cleft

Introduction: HRCT temporal bone is the currently widely used investigation for the chronic otitis media patient especially in unsafe disease. Aim: This study was conducted to assess the condition of the middle ear in CSOM by HRCT temporal bone and compare them with intraoperative finding of the middle ear cleft . Method: Study group includes patients of Attico-antral variety of CSOM presenting in ENT OPD in our institution over a period of 18 months who undergone Computed Tomography Temporal bone followed by Surgical Procedure. Results: After study it was observed that CT scan can reliably detect bony & soft tissue changes in middle ear and intracranial complication. It can detect soft tissue in the middle ear but can not differentiate between soft tissue and cholesteatoma.  Conclusion: CT scan provides excellent anatomical details and pathological changes of the ear and mastoid. Scanning all the patients is not feasible and justified, so we need to select patients in whom diagnosis and extend of the diseases is in doubt.  

scholarly journals Computed-Tomography-Structured Reporting in Middle Ear Opacification: Surgical Results and Clinical Considerations From a Large Retrospective Analysis

2021 ◽  
Vol 12 ◽  
Author(s):  
Michele Cavaliere ◽  
Antonella Miriam Di Lullo ◽  
Camilla Russo ◽  
Massimo Mesolella ◽  
Elena Cantone ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Ct Scan ◽  
Temporal Bone ◽  
Eustachian Tube ◽  
Middle Ear ◽  
Surgical Planning ◽  
Chronic Otitis Media ◽  
Anatomical Site ◽  
Vascular Structures ◽  
Bony Erosion

Purpose: The aim of the study is to compare the accuracy of unstructured preoperative Computed Tomography (CT) reports from non-tertiary diagnostic centers with intraoperative findings in a large cohort of patients with Chronic Otitis Media (COM) undergone surgery.Methods: From 2012 to 2019, a total number of 301 patients were considered for our purposes. All patients with clinical evidence of COM had preoperative non-contrast high resolution CT scan of the temporal bone in non-tertiary diagnostic centers, performed within 3 months before surgery.Results: The accuracy of CT reports was analyzed in terms of nature, anatomical site, disease extension, bony erosion, vascular structures abnormalities relevant to surgical planning, and Eustachian tube patency. Compared to post-surgical findings, CT reporting critical analysis revealed a tendency to overestimation of bony erosion, coupled to underestimated description of facial canal/lateral semi-circular canal, vascular structures, and Eustachian tube.Conclusion: Discrepancies between CT reports and surgical findings in middle ear opacification can be at least in part due to limited expertise of general radiologists in ENT neuroimaging. To limit this lack of information and the limited accuracy of middle ear structures depiction, here we propose a structured checklist to adopt in the case of a temporal bone CT scan for COM, in order to optimize the communication with surgeons and provide all the crucial information for an accurate surgical planning.

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.

A comparison of high resolution CT scan of temporal bone and operative findings in middle ear cholesteatoma

1993 ◽  
Vol 29 (5) ◽  
pp. 896
Author(s):  
Tae Beom Kweon ◽  
Hun Seong ◽  
Mal Soon Cheon ◽  
Hack Jin Kim ◽  
Keung Jae Jang ◽  
...  
Keyword(s):  
High Resolution ◽  
Ct Scan ◽  
Temporal Bone ◽  
Middle Ear ◽  
High Resolution Ct ◽  
Middle Ear Cholesteatoma ◽  
Operative Findings

Soft-tissue changes after Class II malocclusion treatment using the Sander bite-jumping appliance: a retrospective study

2019 ◽  
Vol 68 (3) ◽  
Author(s):  
Michele Tepedino ◽  
Maria V. Della Noce ◽  
Domenico Ciavarella ◽  
Patrizia Gallenzi ◽  
Massimo Cordaro ◽  
...  
Keyword(s):  
Retrospective Study ◽  
Soft Tissue ◽  
Class Ii ◽  
Class Ii Malocclusion ◽  
Tissue Changes ◽  
Soft Tissue Changes

Malar augmentation with zygomatic osteotomy in orthognatic surgery: Bone and soft tissue changes threedimensional evaluation

2021 ◽  
Vol 49 (3) ◽  
pp. 223-230
Author(s):  
Giovanni Gerbino ◽  
Umberto Autorino ◽  
Claudia Borbon ◽  
Federica Marcolin ◽  
Elena Olivetti ◽  
...  
Keyword(s):  
Soft Tissue ◽  
Tissue Changes ◽  
Orthognatic Surgery ◽  
Soft Tissue Changes

scholarly journals Micro-CT imaging of Thiel-embalmed and iodine-stained human temporal bone for 3D modeling

2021 ◽  
Vol 50 (1) ◽  
Author(s):  
Sebastian Halm ◽  
David Haberthür ◽  
Elisabeth Eppler ◽  
Valentin Djonov ◽  
Andreas Arnold
Keyword(s):  
Soft Tissue ◽  
Temporal Bone ◽  
Middle Ear ◽  
3D Modeling ◽  
Soft Tissues ◽  
Ct Imaging ◽  
Micro Ct ◽  
Data Set ◽  
Iodine Staining ◽  
Tissue Structures

Abstract Introduction This pilot study explores whether a human Thiel-embalmed temporal bone is suitable for generating an accurate and complete data set with micro-computed tomography (micro-CT) and whether solid iodine-staining improves visualization and facilitates segmentation of middle ear structures. Methods A temporal bone was used to verify the accuracy of the imaging by first digitally measuring the stapes on the tomography images and then physically under the microscope after removal from the temporal bone. All measurements were compared with literature values. The contralateral temporal bone was used to evaluate segmentation and three-dimensional (3D) modeling after iodine staining and micro-CT scanning. Results The digital and physical stapes measurements differed by 0.01–0.17 mm or 1–19%, respectively, but correlated well with the literature values. Soft tissue structures were visible in the unstained scan. However, iodine staining increased the contrast-to-noise ratio by a factor of 3.7 on average. The 3D model depicts all ossicles and soft tissue structures in detail, including the chorda tympani, which was not visible in the unstained scan. Conclusions Micro-CT imaging of a Thiel-embalmed temporal bone accurately represented the entire anatomy. Iodine staining considerably increased the contrast of soft tissues, simplified segmentation and enabled detailed 3D modeling of the middle ear.

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