Seroussi J, Hautefort C, Gillibert A, Kania R, Guichard JP, Vitaux H, Herman P, Houdart E, Attyé A, Eliezer M. Postoperative MR imaging features after superior semicircular canal plugging in Minor syndrome.
Diagn Interv Imaging 2018;
99:679-687. [PMID:
30220585 DOI:
10.1016/j.diii.2018.08.008]
[Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 08/03/2018] [Accepted: 08/19/2018] [Indexed: 12/11/2022]
Abstract
PURPOSE
To report the postoperative magnetic resonance imaging (MRI) features after superior semicircular canal plugging in patients with Minor syndrome.
MATERIALS AND METHODS
The MRI examinations with 3D T2-weighted SPACE sequence of 12 patients with superior semicircular canal dehiscence syndrome (SCDS) were retrospectively assessed. Two radiologists independently evaluated the presence of a filling defect of the superior semicircular canal above the superior ampulla and the common crus using an oblique plane parallel to the superior semicircular canal (Pöschl's plane).
RESULTS
Postoperative MRI showed a filling defect above the ampulla of the superior semicircular canal and the common crus in 8/12 patients (67%). Three patients (3/12; 25%) had a filling defect involving also the superior ampulla that caused postoperative labyrinthitis with labyrinthine enhancement on MRI in 2 patients. One patient (1/12; 8%) had incomplete plugging of superior semicircular canal with abnormal functional tests and remaining symptoms.
CONCLUSION
Postoperative MRI shows a normal plugging aspect of the superior semicircular canal in 67% of patients. MRI can reveal complications that may have therapeutic implications.
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