Magnetic resonance imaging in a guinea pig model of inner ear decompression sickness and barotrauma

2015 ◽  
Vol 126 (9) ◽  
pp. 2106-2109 ◽  
Author(s):  
Nathan E. Pierce ◽  
G. Joseph Parell ◽  
Reordan O. De Jesus ◽  
Carolyn P. Ojano-Dirain ◽  
Patrick J. Antonelli
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Guinea Pig ◽  
Inner Ear ◽  
Decompression Sickness ◽  
Pig Model ◽  
Resonance Imaging ◽  
Guinea Pig Model ◽  
Inner Ear Decompression Sickness

scholarly journals Characterisation of the guinea pig model of osteoarthritis by in vivo three-dimensional magnetic resonance imaging

2003 ◽  
Vol 11 (12) ◽  
pp. 845-853 ◽  
Author(s):  
J.J Tessier ◽  
J Bowyer ◽  
N.J Brownrigg ◽  
I.S Peers ◽  
F.R Westwood ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Guinea Pig ◽  
Three Dimensional ◽  
Pig Model ◽  
Resonance Imaging ◽  
Guinea Pig Model

Micro-magnetic resonance imaging of the inner ear in the guinea pig

1997 ◽  
Vol 10 (1) ◽  
pp. 31-34 ◽  
Author(s):  
Izumi Koizuka ◽  
Yoshiteru Seo ◽  
Masataka Murakami ◽  
Ritsu Seo ◽  
Isao Kato
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Guinea Pig ◽  
Inner Ear ◽  
Resonance Imaging

scholarly journals Facial nerve anomalies in paediatric cochlear implant candidates: radiological evaluation

2016 ◽  
Vol 131 (1) ◽  
pp. 26-31 ◽  
Author(s):  
F B Palabiyik ◽  
K Hacikurt ◽  
Z Yazici
Keyword(s):  
Magnetic Resonance Imaging ◽  
Computed Tomography ◽  
Magnetic Resonance ◽  
High Resolution ◽  
Facial Nerve ◽  
Cochlear Implant ◽  
Inner Ear ◽  
Resonance Imaging ◽  
High Resolution Computed Tomography ◽  
Ear Anomalies

AbstractBackground:Pre-operative radiological identification of facial nerve anomalies can help prevent intra-operative facial nerve injury during cochlear implantation. This study aimed to evaluate the incidence and configuration of facial nerve anomalies and their concurrence with inner-ear anomalies in cochlear implant candidates.Methods:Inner-ear and concomitant facial nerve anomalies were evaluated by magnetic resonance imaging and temporal high-resolution computed tomography in 48 children with congenital sensorineural hearing loss who were cochlear implant candidates.Results:Inner-ear anomalies were present in 11 out of 48 patients (23 per cent) and concomitant facial nerve anomalies were present on 7 sides in 4 patients (7 per cent of the total). Facial nerve anomalies were accompanied by cochlear or vestibular malformation.Conclusion:Potential facial nerve abnormalities should always be considered in patients with inner-ear anomalies. Pre-operative facial nerve imaging can increase the surgeon's confidence to plan and perform cochlear implantation. Magnetic resonance imaging should be used to detect inner-ear anomalies; if these are identified, temporal high-resolution computed tomography should be used to evaluate the facial nerve.

scholarly journals Sudden sensorineural hearing loss associated with inner ear lesions detected by magnetic resonance imaging

PLoS ONE ◽  
2017 ◽  
Vol 12 (10) ◽  
pp. e0186038 ◽  
Author(s):  
Jiwon Cho ◽  
Hanjae Cheon ◽  
Jung Hye Park ◽  
Hyo-Jeong Lee ◽  
Hyung-Jong Kim ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Hearing Loss ◽  
Magnetic Resonance ◽  
Sensorineural Hearing Loss ◽  
Inner Ear ◽  
Sudden Sensorineural Hearing Loss ◽  
Sensorineural Hearing ◽  
Resonance Imaging

Computed Tomography and Magnetic Resonance Imaging of the Inner Ear

1988 ◽  
Vol 99 (5) ◽  
pp. 494-504 ◽  
Author(s):  
Robert K. Jackler ◽  
William P. Dillon
Keyword(s):  
Magnetic Resonance Imaging ◽  
Computed Tomography ◽  
Magnetic Resonance ◽  
Inner Ear ◽  
Semicircular Canals ◽  
Resonance Imaging ◽  
High Resolution Computed Tomography ◽  
Membranous Labyrinth ◽  
Prosthetic Devices ◽  
Ear Malformations

The majority of temporal bone radiographic studies are obtained either for middle ear and mastoid disease or in the evaluation of retrocochlear pathology. With recent technologic advances, diagnostic imaging of the inner ear has developed an increasing role in the evaluation and management of diseases that affect the cochlea, semicircular canals, and the vestibular and cochlear aqueducts. High-resolution computed tomography (CT) provides excellent detail of the osseous labyrinth, whereas magnetic resonance imaging (MRI) generates images derived from the membranous labyrinth and its associated neural elements. Optimal techniques for obtaining high quality CT and MRI images of the normal and diseased inner ear are presented. CT has proved useful in the evaluation of inner ear malformations, cochlear otosclerosis, labyrinthine fistulization from cholesteatoma, translabyrinthine fractures, otic capsule osteodystrophies, in the assessment of cochlear patency before cochlear implantation, and in the localization of prosthetic devices such as stapes wires and cochlear implants. While MRI produces discernible images of the soft tissue and fluid components of the inner ear, it has yet to demonstrate any unique advantages in the evaluation of inner ear disease. However, MRI produces excellent and highly useful images of the audiovestibular and facial nerves, cerebellopontine angle, and brain.

Measurement of the Human Cochlear Spiral Curvature In Vivo

2013 ◽  
Vol 284-287 ◽  
pp. 1552-1558
Author(s):  
Jen Fang Yu ◽  
Kun Che Lee
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Inner Ear ◽  
Cochlear Implantation ◽  
Resonance Imaging ◽  
Basal Turn ◽  
Magnetic Resonance Imaging Mri ◽  
Human Inner Ear

This research aims to characterize the geometry of the human cochlear spiral in vivo by measuring curvature and length. Magnetic resonance imaging (MRI) was used to visualise the human inner ear in vivo. The inner ear was imaged in 12 ears in 7 subjects recruited. Visualisation of the cochlear spiral was enhanced by T2 weighting and further processing of the raw images. The spirals were divided into 3 segments: the basal turn segment, the middle turn segment and the apex turn segment. The length and curvature of each segment were measured. The measured lengths of cochlear spiral are consistent with data in the literature derived from anatomical dissections. Overall, the apex turn segment of the cochlear had the greatest degree of curvature. A detailed description of the cochlear spiral is provided, using measurements of curvature and length. This data will provide a valuable reference in the development of cochlear implantation procedures.

Magnetic resonance imaging of the inner ear by using a hybrid radiofrequency coil at 7 T

2015 ◽  
Vol 66 (2) ◽  
pp. 175-182 ◽  
Author(s):  
Kyoung-Nam Kim ◽  
Phil Heo ◽  
Young-Bo Kim ◽  
Gyu-Cheol Han
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Inner Ear ◽  
Resonance Imaging ◽  
Radiofrequency Coil
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