컴퓨터 단층촬영의 3차원 영상분석을 통한 내이도 발달의 평가

• 영문명: Morphological evaluation of the developmental change of internal auditory canal using three-dimensional computed tomography
• 발행기관: 대한두개저학회
• 저자명: 송선화(Sunwha Song) 전범조(Beomcho Jun)
• 간행물 정보: 『대한두개저학회지』제19권 제2호, 103~108쪽, 전체 6쪽
• 주제분류: 의약학 > 일반외과학
• 파일형태: PDF
• 발행일자: 2024.10.31

국문 초록

Background: This study investigated the morphological evaluation of the developmental change of internal auditory canal (IAC) using three-dimensional (3D) computed tomography (CT). Materials and Methods: We retrospectively investigated 60 ears of 30 patients aged from birth to 19 years old. The volume of IAC was reconstructed using the Vworks 4.0 software. Data were evaluated by the age group as follows: group 1 were aged under 3 years; group 2 were aged 4-7 years; group 3 were aged 8-11 years; group 4 were aged 12-15 years; and group 5 were aged 16-19 years. Six parameters of were measured in the 3D objects with reference to the axial, coronal, and sagittal images of the CT scans as follows: (1) Wp, width of porus; (2) Wv, width of vertical posterior aperture of porus; (3) Wm, width at mid-point of IAC; (4) Dp, depth of porus; (5) Dm, depth at midpoint of IAC; and (6) Hf, height from porus to fundus. Results: The mean volume was measured as 76.30 ± 24.24 mm3 in group 1; 104.70 ± 14.08 mm3 in group 2; 114.95 ± 41.88 mm3 in group 3; 147.68 ± 53.84 mm3 in group 4; and 188.24 ± 59.60 mm3 in group 5. The volume of IAC between the group 1 and group 2 was significantly increased (P = 0.003). IAC volume was significantly correlated with six parameters (P = 0.001). Conclusions: Understanding the normal growth pattern of IAC could be helpful in identifying abnormal change of IAC.

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REFERENCES

키워드

Internal auditory canal Temporal bone Three-dimensional Computed tomography