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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 대한이비인후과학회 Clinical and Experimental Otorhinolaryngology Clinical and Experimental Otorhinolaryngology 제8권 제4호
- 발행연도
- 2015.1
- 수록면
- 320 - 328 (9page)
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초록· 키워드
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Objectives. To quantitatively analyzing the anatomic variants on temporal computed tomography (CT) in congenital external auditory canal stenosis (EACS), congenital aural atresia (CAA), and normal ear structure. Methods. Through a retrospective study, we analyzed 142 temporal high-resolution CT studies performed in 71 microtia patients. The following 6 parameters were compared among the three groups: Marx classification, medial canal diameter, vertical facial nerve (VFN) anterior displacement, tegmen mastoideum position, tympanic cavity volume, and malleus-incus joint or malleus-incus complex (MIC) area. Results. The results showed that the microtia distributions in the Marx classification in these three groups were significantly different, as 86% (31 of 35) of ears with major microtia (third-degree dysplasia) had an atresia, and in 54.8% (23 of 42) of the minor microtic (first-degree or second-degree) ears, the bony or cartilaginous part of the external auditory canal was stenotic. Measurement data also showed that the potential medial canal diameter of the atresia group was obviously shorter than that of the stenosis group. The VFN anterior displacement and temporomandibular joint backward-shift together lead to medial canal diameters in ears with atresic canals that is smaller than those with stenotic canals. The tegmen mastoideum position was not significantly different between the three groups. Conclusion. The mal-development of the external auditory canal is significantly associated with auricle and middle ear developmental anomalies. Compared with CAA ears, EACS have better development of the auricle, canal, tympanic cavity and MIC and relatively safer surgical operation except for the position of the tegmen mastoideum and the VFN.
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등록된 정보가 없습니다.
참고문헌 (25)
참고문헌 신청
Benton C / 2000 / Imaging of congenital anomalies of the temporal bone / Neuroimaging Clin N Am 10 (1) : 35 ~ 53
Dedhia K / 2012 / Anatomic variants on computed tomography in congenital aural atresia / Otolaryngol Head Neck Surg 147 (2) : 323 ~ 328
Fu Y / 2011 / Facial nerve lying lateral to ossicles in one case of congenital aural atresia / Int J Pediatr Otorhinolaryngol 75 (4) : 597 ~ 599
Hill CA / 2008 / A quantitative method for the evaluation of three-dimensional structure of temporal bone pneumatization / J Hum Evol 55 (4) : 682 ~ 690
Ikui A / 2000 / Postnatal development of the tympanic cavity: a computer-aided reconstruction and measurement study / Acta Otolaryngol 120 (3) : 375 ~ 379
Dedhia K / 2012 / Anatomic variants on computed tomography in congenital aural atresia / Otolaryngol Head Neck Surg 147 (2) : 323 ~ 328
Fu Y / 2011 / Facial nerve lying lateral to ossicles in one case of congenital aural atresia / Int J Pediatr Otorhinolaryngol 75 (4) : 597 ~ 599
Hill CA / 2008 / A quantitative method for the evaluation of three-dimensional structure of temporal bone pneumatization / J Hum Evol 55 (4) : 682 ~ 690
Ikui A / 2000 / Postnatal development of the tympanic cavity: a computer-aided reconstruction and measurement study / Acta Otolaryngol 120 (3) : 375 ~ 379
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