Utility of Temporal Bone Computed Tomographic Measurements in the Evaluation of Inner Ear Malformations

Chen, Judy L.; Gittleman, Adam M.; Barnes, Patrick D.; Chang, Kay W.

doi:10.1001/archoto.2007.4

Cited by 27 publications

(28 citation statements)

References 18 publications

(26 reference statements)

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“…Our cochlear measurements are within the range of inner ear measurements reported in the literature in fetuses (20), children (21,23,26), and adults (6). As our youngest fetus was aged 21 WA, our data suggest that adult size is reached at or before 21 WA.…”

Section: Inner Ear Bony Developmentsupporting

confidence: 84%

CT Scan Imaging of the Human Fetal Labyrinth

Mejdoubi

Mokrane

Telmon

2016

Otology &Amp; Neurotology

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Section: Inner Ear Bony Developmentsupporting

confidence: 84%

CT Scan Imaging of the Human Fetal Labyrinth

Mejdoubi

Mokrane

Telmon

2016

Otology &Amp; Neurotology

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“…4). On the other hand, in their radiologic study, Chen et al (24) reported the mean BTC lumen to be 1.7 T 0.2 mm, and in their study on corrosion casts, Erixon et al (4) found that the internal diameter of the BTC varied from 1.6 to 2.6 mm. Previous studies do not mention the site at which the diameter was measured.…”

Section: Discussionmentioning

confidence: 95%

Surgical Anatomy of the Basal Turn of the Human Cochlea as Pertaining to Cochlear Implantation

Singla¹,

Sahni²,

Gupta³

et al. 2015

Otology &Amp; Neurotology

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The cochleae differed significantly in their dimensions. Unusual constrictions found in the basal turn of the cochlea in 7.5% cases may explain the difficulties experienced by surgeons to reach full insertion in such cases. An extensive range (15.6-24.6 mm) of the length of the basal turn denotes significant variations of insertion degrees at constant surgical depths. The refined morphometric information of the cochlea may help in designing and selecting the electrode array for cochlear implantation.

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“…Measurement of the width of the central bony islands of the superior and lateral semicircular canals on axial high-resolution CT images has been proposed as a means for identifying any subtle abnormalities of the semicircular canals that may exist in children with congenital sensorineural hearing loss whose inner ear anatomy appears normal on CT and MR images (18,19).…”

Section: Malformations Of the Vestibule And Semicircularmentioning

confidence: 99%

CT and MR Imaging of the Inner Ear and Brain in Children with Congenital Sensorineural Hearing Loss

Joshi¹,

Navlekar²,

Kishore³

et al. 2012

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Imaging plays an important role in the evaluation of congenital sensorineural hearing loss. In children who are candidates for cochlear implantation surgery, it provides vital preoperative information about the inner ear, the vestibulocochlear nerve, and the brain. High-resolution computed tomography (CT) and magnetic resonance (MR) imaging provide excellent delineation of the intricate anatomy of the inner ear: CT depicts the minute details of osseous structures, and MR imaging allows visualization of the fluid-filled spaces and the vestibulocochlear nerve. Together, these complementary modalities can aid decision making about the best management strategy by facilitating the identification and characterization of inner ear malformations and any associated neurologic abnormalities. It is important that the radiologist be familiar with the key imaging features when interpreting CT and MR images obtained in this patient group. A broad spectrum of inner ear malformations have been described and linked to developmental insults at different stages of embryogenesis, and various systems have been proposed for classifying them. In this article, these malformations are described by using classification systems used by otolaryngologists for ease of interpretation. The relevant normal anatomy and development of the inner ear are briefly surveyed, standard imaging protocols for studying the inner ear are reviewed, and the imaging appearances of frequently observed inner ear malformations are described and illustrated. The impact of the identification of these malformations and commonly associated brain abnormalities on clinical management and prognosis also is discussed.

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Utility of Temporal Bone Computed Tomographic Measurements in the Evaluation of Inner Ear Malformations

Cited by 27 publications

References 18 publications

CT Scan Imaging of the Human Fetal Labyrinth

CT Scan Imaging of the Human Fetal Labyrinth

Surgical Anatomy of the Basal Turn of the Human Cochlea as Pertaining to Cochlear Implantation

CT and MR Imaging of the Inner Ear and Brain in Children with Congenital Sensorineural Hearing Loss

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