측두골 전산화단층촬영에서 상반고리관 결손의 빈도와 상부 골벽의 두께 측정
Prevalence of Superior Semicircular Canal Dehiscence and It’s Overlying Bone Thickness in Computed Tomography
2
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
Superior semicircular canal dehiscence syndrome (SCDS) is diagnosed by clinical symptoms and signs. Computed tomography (CT) has been used to confirm the diagnosis. A consecutive series of temporal bone CT scans was reviewed to define the prevalence of a dehiscent-appearing superior semicircular canal in temporal bone and measured to know the thickness of bone overlying the superior semicircular canal. These datas support to make a diagnosis of SCDS. Methods：Retrospective review of CT scans of the temporal bone performed at our institution between January 2006 and December 2008. Prevalence figures for dehiscent-appearing superior semicircular canal were determined by consensus. An additional 50 control subjects who underwent temporal bone multi-detector row CT for other reasons, were prospectively selected to measure the thickness of bone overlying the superior semicircular canal. Results：A dehiscent-appearing superior semicircular canal was seen in 30 ears (1.5%) of studies, at the middle fossa floor (n=22) and where the superior petrosal sinus was in contact with the canal (n=8). The thickness of bone overlying the superior canal in controls measured 1.02±0.42 mm (mean ±SD). And the thickness of the bone overlying the superior canal on one side correlated with that on the other side in controls (r=0.62, p＜0.0001). Conclusions：Determination of Superior canal dehiscence (SCD) should be based on the coronal CT scans that correlated with clinical symptoms.
Abstract
Superior semicircular canal dehiscence syndrome (SCDS) is diagnosed by clinical symptoms and signs. Computed tomography (CT) has been used to confirm the diagnosis. A consecutive series of temporal bone CT scans was reviewed to define the prevalence of a dehiscent-appearing superior semicircular canal in temporal bone and measured to know the thickness of bone overlying the superior semicircular canal. These datas support to make a diagnosis of SCDS. Methods：Retrospective review of CT scans of the temporal bone performed at our institution between January 2006 and December 2008. Prevalence figures for dehiscent-appearing superior semicircular canal were determined by consensus. An additional 50 control subjects who underwent temporal bone multi-detector row CT for other reasons, were prospectively selected to measure the thickness of bone overlying the superior semicircular canal. Results：A dehiscent-appearing superior semicircular canal was seen in 30 ears (1.5%) of studies, at the middle fossa floor (n=22) and where the superior petrosal sinus was in contact with the canal (n=8). The thickness of bone overlying the superior canal in controls measured 1.02±0.42 mm (mean ±SD). And the thickness of the bone overlying the superior canal on one side correlated with that on the other side in controls (r=0.62, p＜0.0001). Conclusions：Determination of Superior canal dehiscence (SCD) should be based on the coronal CT scans that correlated with clinical symptoms.
참고문헌 (12)
- Minor LB, "Sound- and", or pressure-induced vertigo due to bone dehiscence of the superior semicircular canal, 1998, pp.124(3), 249~258
- Minor LB, "Clinical manifestations of superior semicircular canal dehiscence", Laryngoscope, 115(10), pp.1717~1727 (2005)
- da Cunha Ferreira S, "Superior canal dehiscence syndrome", Braz J Otorhinolaryngol, 72(3), pp.414~418 (2006)
- Watson SR, "Vestibular hypersensitivity to sound (tullio phenomenon): structural and functional assessment", Neurology, 54(3), pp.722~728 (2000)
- Zhou G, "Clinical and diagnostic characterization of canal dehiscence syndrome: a great otologic mimicker", Otol Neurotol, 28(7), pp.920~926 (2007)
- Williamson RA, "Coronal computed tomography prevalence of superior semicircular canal dehiscence", Otolaryngol Head Neck Surg, 129(5), pp.481~489 (2003)
- Carey JP, "Dehiscence or thinning of bone overlying the superior semicircular canal in a temporal bone survey", Arch Otolaryngol Head Neck Surg, 126(2), pp.137~147 (2000)
- Baloh RW, "Superior semicircular canal dehiscence syndrome: leaks and squeaks can make you dizzy", Neurology, 62(5), pp.684~685 (2004)
- Belden CJ, "CT evaluation of bone dehiscence of the superior semicircular canal as a cause of sound- and", or pressure-induced vertigo, 2003, pp.226(2), 337~343
- Branstetter BF,4th, "Superior semicircular canal dehiscence: oblique reformatted CT images for diagnosis", Radiology, 238(3), pp.938~942 (2006)
- Loke SC, "Incidence of semicircular canal dehiscence in singapore", Br J Radiol, 82(977), pp.371~373 (2009)
- Hirvonen TP, "High-resolution CT findings suggest a developmental abnormality underlying superior canal dehiscence syndrome", Acta Otolaryngol, 123(4), pp.477~481 (2003)