Facial Nerve and Infections of the Temporal Bone

2015 ◽  
pp. 1214-1215
Author(s):  
Maged El Shennawy
Keyword(s):  
2020 ◽  
Vol 6 (1) ◽  
pp. 1-5
Author(s):  
Daichi Fujii ◽  
Hikari Shimoda ◽  
Natsumi Uehara ◽  
Takeshi Fujita ◽  
Masanori Teshima ◽  
...  

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
C. A. Neves ◽  
E. D. Tran ◽  
I. M. Kessler ◽  
N. H. Blevins

AbstractMiddle- and inner-ear surgery is a vital treatment option in hearing loss, infections, and tumors of the lateral skull base. Segmentation of otologic structures from computed tomography (CT) has many potential applications for improving surgical planning but can be an arduous and time-consuming task. We propose an end-to-end solution for the automated segmentation of temporal bone CT using convolutional neural networks (CNN). Using 150 manually segmented CT scans, a comparison of 3 CNN models (AH-Net, U-Net, ResNet) was conducted to compare Dice coefficient, Hausdorff distance, and speed of segmentation of the inner ear, ossicles, facial nerve and sigmoid sinus. Using AH-Net, the Dice coefficient was 0.91 for the inner ear; 0.85 for the ossicles; 0.75 for the facial nerve; and 0.86 for the sigmoid sinus. The average Hausdorff distance was 0.25, 0.21, 0.24 and 0.45 mm, respectively. Blinded experts assessed the accuracy of both techniques, and there was no statistical difference between the ratings for the two methods (p = 0.93). Objective and subjective assessment confirm good correlation between automated segmentation of otologic structures and manual segmentation performed by a specialist. This end-to-end automated segmentation pipeline can help to advance the systematic application of augmented reality, simulation, and automation in otologic procedures.


2019 ◽  
Vol 5 (1) ◽  
pp. 20180029
Author(s):  
Yaotse Elikplim Nordjoe ◽  
Ouidad Azdad ◽  
Mohamed Lahkim ◽  
Laila Jroundi ◽  
Fatima Zahrae Laamrani

Facial nerve aplasia is an extremely rare condition that is usually syndromic, namely, in Moebius syndrome. The occurrence of isolated agenesis of facial nerve is even rarer, with only few cases reported in the literature. We report a case of congenital facial paralysis due to facial nerve aplasia diagnosed on MRI, while no noticeable abnormality was detected on the temporal bone CT.


2016 ◽  
Vol 13 (03) ◽  
pp. 168-170
Author(s):  
Kanjully Sabarigirish ◽  
Sanjeev Saxena ◽  
Himanshu Swami ◽  
Angshuman Dutta ◽  
Lohith BR

2018 ◽  
Vol 132 (10) ◽  
pp. 885-890
Author(s):  
L Zhao ◽  
J Li ◽  
S Gong

AbstractObjectiveTo evaluate the therapeutic effect that the titanium partial ossicular reconstruction prosthesis and autologous ossicles have on hearing loss after reconstruction of a damaged ossicular chain.MethodsForty-two medical records of treatments carried out from 2013 to 2015 for ossicular chain damage with facial nerve paralysis due to temporal bone fractures were reviewed. The study assessed: causes of damage, pre-operative pure tone audiometry findings, types of intra-operative ossicular chain damage, intra-operative ossicular chain repair methods (titanium partial ossicular reconstruction prosthesis or autologous ossicles) and post-operative pure tone audiometry results.ResultsThe titanium partial ossicular reconstruction prosthesis was used in 26 cases; the average air–bone gap was 32.3 ± 5.3 dB pre-operatively and 12.8 ± 5.3 dB post-operatively. Autologous ossicles were used in 16 cases; the average air–bone gap was 33.4 ± 4.5 dB pre-operatively and 17.8 ± 7.8 dB post-operatively.ConclusionOssicular chain reconstruction is an effective way of improving hearing in patients with ossicular chain damage. The results suggest that repair with either the titanium partial ossicular reconstruction prosthesis or autologous ossicles can improve hearing following ossicular chain injury with facial nerve paralysis caused by a temporal bone fracture.


2004 ◽  
Vol 262 (5) ◽  
pp. 404-407 ◽  
Author(s):  
Alexis Bozorg Grayeli ◽  
Isabelle Mosnier ◽  
Nicolas Julien ◽  
Hani Garem ◽  
Didier Bouccara ◽  
...  

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