scholarly journals Radiographic Measurement of Cochlear in Sudanese Population using High Resolution Computed Tomography (HRCT)

2021 ◽  
Vol 29 (2) ◽  
Author(s):  
Lubna Bushara ◽  
Mohamed Yousef ◽  
Ikhlas Abdelaziz ◽  
Mogahid Zidan ◽  
Dalia Bilal ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Hearing Loss ◽  
High Resolution ◽  
Temporal Bone ◽  
Healthy Subjects ◽  
Cochlear Nerve ◽  
High Resolution Computed Tomography ◽  
Mean Width ◽  
The Mean ◽  
The Right

This study aimed to determine the measurements of the cochlea among healthy subjects and hearing deafness subjects using a High Resolution Computed Tomography (HRCT). A total of 230 temporal bone HRCT cases were retrospectively investigated in the period spanning from 2011 to 2015. Three 64-slice units were used to examine patients with clinical complaints of hearing loss conditions at three Radiology departments in Khartoum, Sudan. For the control group (A) healthy subjects, the mean width of the right and left cochlear were 5.61±0.40 mm and 5.56±0.58 mm, the height were 3.56±0.36 mm and 3.54±0.36 mm, the basal turn width were 1.87±0.19 mm and 1.88 ±0.18 mm, the width of the cochlear nerve canal were 2.02±1.23 and 1.93±0.20, cochlear nerve density was 279.41±159.02 and 306.84±336.9 HU respectively. However, for the experimental group (B), the mean width of the right and left cochlear width were 5.38±0.46 mm and 5.34±0.30 mm, the height were 3.53±0.25 mm and 3.49±0.28mm, the basal turn width were 1.76±0.13 mm, and 1.79±0.13 mm, the width of the cochlear nerve canal were 1.75±0.18mm and 1.73±0.18mm, and cochlear nerve density were 232.84±316.82 and 196.58±230.05 HU, respectively. The study found there was a significant difference in cochlea’s measurement between the two groups with a p-value < 0.05. This study had established baseline measurements for the cochlear for the healthy Sudanese population. Furthermore, it found that HRCT of the temporal bone was the best for investigation of the cochlear and could provide a guide for the clinicians to manage congenital hearing loss.

scholarly journals An Anatomical Study of the Cochlea among Filipinos using High-Resolution Computed Tomography Scans

2011 ◽  
Vol 26 (1) ◽  
pp. 6-9 ◽  
Author(s):  
Adrian F. Fernando ◽  
Brian Joseph dG. De Jesus ◽  
Alejandro P. Opulencia ◽  
Gil M. Maglalang ◽  
Antoio H. Chua
Keyword(s):  
Computed Tomography ◽  
High Resolution ◽  
Average Length ◽  
Age Groups ◽  
Oval Window ◽  
University Hospital ◽  
High Resolution Computed Tomography ◽  
Basal Turn ◽  
The Mean ◽  
The Right

Objective: To describe the cochlear anatomy among Filipinos through high resolution computed tomography (HRCT) imaging.   Methods: Design: Retrospective Study Setting: Tertiary Private University Hospital Patients: Cochlear images retrospectively obtained from computed tomography (CT) scans of subjects who underwent cranial, facial, paranasal sinus and temporal bone computed tomography from October 2009 to July 2010 were reconstructed and analyzed.   Results: 388 cochlear images were obtained from the scans of 194 subjects (101 males and 93 females, aged 1 to 90 years old, mean = 52 years) and reconstructed for analysis. The mean coiled cochlear height measured 4.36 mm on the right (A.D.) and 4.34 mm on the left (A.S.). Measurement from the oval window to the distal end of the basal turn (equivalent to the horizontal dimension of the cochlea or the mean length of the basal turn) was 7.55 mm A.D. and 7.60 mm A.S. The vertical and horizontal dimensions of right and left cochleas were identical in all subjects (S.D. = 0.35). The right and left cochlear turns were identical in each subject, exhibiting 2 ½ turns in 92.3% of subjects and 2 ¾ turns in 7.7% of subjects.The cochlear dimensions were similar in all subjects, regardless of age. No cochlear ossification or malformation was noted on any CT image.   Conclusion: The 7.55 mm mean length of the cochlear basal turn among Filipinos in this study was 1.24 mm shorter than the average length of the basal turn of 8.81 mm reported elsewhere. Further studies of the cochlear dimensions in specific age groups and its correlation to audiometric status are recommended to determine other significant physiologic correlations.   Keywords: cochlea, cochlear turn, high-resolution computed tomography (HRCT), magnetic resonance imaging (MRI)

Temporal Bone High-Resolution Computed Tomography in Non-Syndromic Unilateral Hearing Loss in Children

ORL ◽  
2012 ◽  
Vol 74 (2) ◽  
pp. 70-77 ◽  
Author(s):  
Elona Cama ◽  
Ingrid Inches ◽  
Enrico Muzzi ◽  
Orjona Sadushi ◽  
Rosamaria Santarelli ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Hearing Loss ◽  
High Resolution ◽  
Temporal Bone ◽  
Unilateral Hearing Loss ◽  
High Resolution Computed Tomography

scholarly journals A Rare Stapes Abnormality

2015 ◽  
Vol 2015 ◽  
pp. 1-4 ◽  
Author(s):  
Hala Kanona ◽  
Jagdeep Singh Virk ◽  
Gaurav Kumar ◽  
Sanjiv Chawda ◽  
Sherif Khalil
Keyword(s):  
Computed Tomography ◽  
Hearing Loss ◽  
High Resolution ◽  
World Literature ◽  
Surgical Intervention ◽  
Conductive Hearing Loss ◽  
High Resolution Computed Tomography ◽  
Stapes Prosthesis ◽  
Diagnostic Difficulties ◽  
Conductive Hearing

The aim of this study is to increase awareness of rare presentations, diagnostic difficulties alongside management of conductive hearing loss and ossicular abnormalities. We report the case of a 13-year-old female reporting progressive left-sided hearing loss and high resolution computed tomography was initially reported as normal. Exploratory tympanotomy revealed an absent stapedius tendon and lack of connection between the stapes superstructure and footplate. The footplate was fixed. Stapedotomy and stapes prosthesis insertion resulted in closure of the air-bone gap by 50 dB. A review of world literature was performed using MedLine. Middle ear ossicular discontinuity can result in significant conductive hearing loss. This can be managed effectively with surgery to help restore hearing. However, some patients may not be suitable or decline surgical intervention and can be managed safely conservatively.

Use of Reconstructed, Non-Orthogonal Plane, High-Resolution Computed Tomography of the Temporal Bone in the Planning of Temporal Bone Surgery

ORL ◽  
2003 ◽  
Vol 65 (2) ◽  
pp. 71-75 ◽  
Author(s):  
Spiros Manolidis ◽  
Bobby Williamson ◽  
Ling-Ling Chan ◽  
Katherine H. Taber ◽  
L. Anne Hayman
Keyword(s):  
Computed Tomography ◽  
High Resolution ◽  
Temporal Bone ◽  
High Resolution Computed Tomography ◽  
Bone Surgery ◽  
Temporal Bone Surgery ◽  
Orthogonal Plane

scholarly journals High Resolution Computed Tomography Atlas of the Porcine Temporal Bone and Skull Base: Anatomical Correlates for Traumatic Brain Injury Research

2019 ◽  
Vol 36 (7) ◽  
pp. 1029-1039
Author(s):  
Renata M. Knoll ◽  
Katherine L. Reinshagen ◽  
Samuel R. Barber ◽  
Iman Ghanad ◽  
Randel Swanson ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Traumatic Brain Injury ◽  
Brain Injury ◽  
High Resolution ◽  
Skull Base ◽  
Temporal Bone ◽  
High Resolution Computed Tomography ◽  
Injury Research

Temporal Bone Measurements on High-Resolution Computed Tomography

2004 ◽  
Vol 33 (06) ◽  
pp. 387 ◽  
Author(s):  
Gazanfer Ekinci ◽  
Ahmet Koç ◽  
Feyyaz Baltacioğlu ◽  
Bayram Veyseller ◽  
Orhan Altintaş ◽  
...  
Keyword(s):  
Computed Tomography ◽  
High Resolution ◽  
Temporal Bone ◽  
High Resolution Computed Tomography

Noise reduction and image quality in ultra-high resolution computed tomography of the temporal bone using advanced modeled iterative reconstruction

2019 ◽  
Vol 60 (9) ◽  
pp. 1135-1143 ◽  
Author(s):  
Johann-Martin Hempel ◽  
Malte Niklas Bongers ◽  
Katharina Braun ◽  
Ulrike Ernemann ◽  
Georg Bier
Keyword(s):  
Computed Tomography ◽  
High Resolution ◽  
Image Quality ◽  
Noise Reduction ◽  
Temporal Bone ◽  
Iterative Reconstruction ◽  
High Resolution Computed Tomography
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