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Preliminary Diagnosis: Superior semicircular canal dehiscence
I. What imaging technique is first-line for this diagnosis
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CT temporal bone without contrast.
II. Describe the advantages and disadvantages of this technique for diagnosis of superior semicircular canal dehiscence.
Advantages
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Relatively inexpensive and fast imaging modality that offers exquisite detail of the osseous structures of the inner, middle, and external ear.
Disadvantages
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Exposes patients to ionizing radiation.
III. What are the contraindications for the first-line imaging technique?
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May be contraindicated in pregnant patients.
IV. What alternative imaging techniques are available?
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No specific alternative imaging techniques exist.
Related Content
V. Describe the advantages and disadvantages of the alternative techniques for diagnosis of superior semicircular canal dehiscence.
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Not applicable.
VI. What are the contraindications for the alternative imaging techniques?
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Not applicable.
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