Superior Semicircular Canal Dehiscence: Oblique Reformatted CT Images for Diagnosis

Branstetter, Barton F.; Harrigal, Chivonne; Escott, Edward J.; Hirsch, Barry E.

doi:10.1148/radiol.2382042098

Cited by 74 publications

(45 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The default-viewing parameters used were 4000 HU for window and 400 HU for level; these values could be adjusted if needed during the review process. Sagittal long-axis and 90°orthogonal shortaxis views in both SSC and PSC were performed as a standard by technologists for MR imaging and CT examinations, following the method described by Branstetter et al and Belden et al 13,14 (example shown in Fig 1), and were included in the dataset for analysis.…”

Section: Technical Considerations Of Mr Imaging and Ct Acquisitionsmentioning

confidence: 99%

Can MRI Replace CT in Evaluating Semicircular Canal Dehiscence?

Browaeys

Larson

Wong³

et al. 2013

AJNR Am J Neuroradiol

View full text Add to dashboard Cite

show abstract

Section: Technical Considerations Of Mr Imaging and Ct Acquisitionsmentioning

confidence: 99%

Can MRI Replace CT in Evaluating Semicircular Canal Dehiscence?

Browaeys

Larson

Wong³

et al. 2013

AJNR Am J Neuroradiol

View full text Add to dashboard Cite

show abstract

“…By reformatting high-resolution CT sections of SSC with 0.5-1 mm intervals (in oblique planes such as those of Pöschl/Stenver), high rates of sensitivity and specificity were obtained. CT has been accepted as the gold standard for the diagnosis of SSCD [5][6][7][8] .…”

Section: Introductionmentioning

confidence: 99%

The Efficacy of Magnetic Resonance Imaging for the Diagnosis of Superior Semicircular Canal Dehiscence

et al. 2018

View full text Add to dashboard Cite

OBJECTIVE:This study aimed to evaluate the efficacy of magnetic resonance imaging (MRI) for diagnosing superior semicircular canal dehiscence (SSCD). MATERIALS and METHODS:The radiological records of patients who were admitted to our clinic with complaints of otologic and neuro-otologic symptoms between October 2014 and December 2015 were retrospectively reviewed. Among these patients, those who underwent both computed tomography and MRI and were reported to have SSCD in the temporal bone on at least one side were included in the study group. MRI records of patients with a confirmed diagnosis were then assessed for the presence of SSCD. RESULTS:The left and right semicircular canals of 52 patients were evaluated in this study. The sensitivity and specificity of MRI in the diagnosis of SSCD was 89.06% and 90%, respectively. The positive and negative predictive values were 93.44% and 83.72%, respectively. CONCLUSION:The use of multiplanar reformats and angulation techniques during MRI assessment of patients with neuro-otologic symptoms can improve the diagnostic process for patients with SSCD. This may allow early diagnosis of the disease by using just one imaging method, which would also reduce the costs per patient during the diagnosis period.

show abstract

“…9,[12][13][14] However, significant differences have been found between autopsy-proven versus CT-detected SSC dehiscence. [15][16][17] It has been proposed that reformatted CT images oriented parallel (plane of Po¨schl) and orthogonal (plane of Stenver) to the plane of the SSC may improve the sensitivity and specificity in detecting SSC dehiscence.…”

Section: Introductionmentioning

confidence: 99%

“…[15][16][17] It has been proposed that reformatted CT images oriented parallel (plane of Po¨schl) and orthogonal (plane of Stenver) to the plane of the SSC may improve the sensitivity and specificity in detecting SSC dehiscence. [10][11][12][13] The aim of our study was to establish the diagnostic performance of 0.5-mm collimation temporal bone helical CT in the diagnosis of SSC dehiscence syndrome comparing the accuracy of reformatted images oriented in the standard axial and coronal planes, as compared with the accuracy of reformatted images oriented parallel and perpendicular to the SSC.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Diagnostic performance of reformatted isotropic thin-section helical CT images in the detection of superior semicircular canal dehiscence

Sparacia

Iaia

2017

Neuroradiol J

View full text Add to dashboard Cite

Purpose The purpose of this article is to assess the diagnostic performance of computed tomography (CT) reformatted images for detection of superior semicircular canal (SSC) dehiscence. Material and methods Forty-two patients, with sound- and/or pressure-induced vestibular symptoms, and 42 control participants underwent helical CT examination with a highly collimated beam (0.5 mm). Reformatted images of the vestibular labyrinth were obtained in the standard axial and coronal planes (group A images), and in a plane parallel and perpendicular to the SSC (group B images). Diagnostic performance obtained by evaluating the group A images alone and the group B images alone was analyzed by using the area under the receiver operating characteristic curve (AUC). Results The diagnostic performance of group A images was AUC = 0.929 with an overall accuracy of 92.9%. The diagnostic performance of group B images was AUC = 0.988 with an overall accuracy of 98.8%. The evaluation of group B images alone showed an improved diagnostic performance over the group A images alone. Conclusion Thin-section 0.5-mm collimation CT with reformatted images oriented in the plane parallel and perpendicular to the SSC improves diagnostic accuracy in assessing for SSC dehiscence in comparison to CT images with reconstructions limited to traditional axial and coronal planes

show abstract

Superior Semicircular Canal Dehiscence: Oblique Reformatted CT Images for Diagnosis

Abstract: Coronal reformations from multi-detector row CT of the temporal bone are sufficient for the evaluation of SSCD. Additional reformations in the planes of Stenver and Pöschl do not change the radiologic diagnosis and may be reserved for equivocal or confusing cases.

Cited by 74 publications

References 9 publications

Can MRI Replace CT in Evaluating Semicircular Canal Dehiscence?

Can MRI Replace CT in Evaluating Semicircular Canal Dehiscence?

The Efficacy of Magnetic Resonance Imaging for the Diagnosis of Superior Semicircular Canal Dehiscence

Diagnostic performance of reformatted isotropic thin-section helical CT images in the detection of superior semicircular canal dehiscence

Contact Info

Product

Resources

About