CT and MRI of the semicircular canals in the normal and diseased temporal bone

Lemmerling, Marc; Vanzieleghem, Bart; Dhooge, Ingeborg; Cauwenberge, Paul Van; Kunnen, Marc

doi:10.1007/s003300000703

Cited by 20 publications

(11 citation statements)

References 11 publications

(12 reference statements)

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“…22 The frequency of posterior and superior SCC agenesis found in patients with SOX10 mutations does not follow the hypothesis of Jackler et al, 23 which stipulates that radiographically detectable malformations correlate with arrested inner ear organogenesis at different stages. Agenesis of posterior and superior SCCs being rare findings, they may be more evocative of a SOX10 mutation than agenesis of the lateral SCC.…”

Section: Discussionmentioning

confidence: 89%

Spectrum of Temporal Bone Abnormalities in Patients with Waardenburg Syndrome andSOX10Mutations

Elmaleh‐Bergès¹,

Baumann

Noël-Pétroff

et al. 2012

AJNR Am J Neuroradiol

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BACKGROUND AND PURPOSE: Waardenburg syndrome, characterized by deafness and pigmentation abnormalities, is clinically and genetically heterogeneous, consisting of 4 distinct subtypes and involving several genes. SOX10 mutations have been found both in types 2 and 4 Waardenburg syndrome and neurologic variants. The purpose of this study was to evaluate both the full spectrum and relative frequencies of inner ear malformations in these patients.

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Section: Discussionmentioning

confidence: 89%

Spectrum of Temporal Bone Abnormalities in Patients with Waardenburg Syndrome andSOX10Mutations

Elmaleh‐Bergès¹,

Baumann

Noël-Pétroff

et al. 2012

AJNR Am J Neuroradiol

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“…The gantry was angulated to achieve a scan plane parallel to the infraorbital meatal line and the skull base. Axial images were acquired in accordance with standard imaging protocols in the sequential mode with slice thickness of 0.3 mm and no gap between the slices [2]. The scanning parameters were 120 kV and 150 mA.…”

Section: Multislice Ctmentioning

confidence: 99%

Posterior semicircular canal dehiscence in asymptomatic ears

Erdoğan¹,

Songu

Akay³

et al. 2010

Acta Oto-Laryngologica

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The prevalence of posterior semicircular canal dehiscence was determined to be 1.2%. No superior or lateral semicircular canal defect was detected in these five patients. All cases with posterior semicircular canal defect were male. In two cases the canal was located unilaterally, while in three cases the defects were present bilaterally. Otological examination and audiovestibular tests revealed no abnormal findings in any of the individuals.

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“…The planes of the semicircular canals are nearly orthogonal, or at right angles, to each other. Each of the canals forms about two-thirds of a circle and is enlarged anteriorly to form the ampulla (8,9,14). The posterior end of the superior semicircular canal joins the upper end of the posterior semicircular canal to form a common limb known as the common crus.…”

Section: Inner Earmentioning

confidence: 99%

Role of 3D CT in the Evaluation of the Temporal Bone

Fatterpekar¹,

Doshi²,

Dugar³

et al. 2006

RadioGraphics

100

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In recent years, three-dimensional (3D) multiplanar reformatted images from conventional cross-sectional computed tomographic (CT) data have been increasingly used to better demonstrate the anatomy and pathologic conditions of various organ systems. Three-dimensional volume-rendered (VR) CT images can aid in understanding the temporal bone, a region of complex anatomy containing multiple small structures within a relatively compact area, which makes evaluation of this region difficult. These images can be rotated in space and dissected in any plane, allowing assessment of the morphologic features of individual structures, including the small ossicles of the middle ear and the intricate components of the inner ear. The use of submillimeter two-dimensional reconstruction from CT data in addition to 3D reformation allows depiction of microanatomic structures such as the osseous spiral lamina and hamulus. Furthermore, 3D VR CT images can be used to evaluate various conditions of the temporal bone, including congenital malformations, vascular anomalies, inflammatory or neoplastic conditions, and trauma. The additional information provided by 3D reformatted images allows a better understanding of temporal bone anatomy and improves the ability to evaluate related disease, thereby helping to optimize surgical planning.

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CT and MRI of the semicircular canals in the normal and diseased temporal bone

Cited by 20 publications

References 11 publications

Spectrum of Temporal Bone Abnormalities in Patients with Waardenburg Syndrome andSOX10Mutations

Spectrum of Temporal Bone Abnormalities in Patients with Waardenburg Syndrome andSOX10Mutations

Posterior semicircular canal dehiscence in asymptomatic ears

Role of 3D CT in the Evaluation of the Temporal Bone

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