The Normal Value of Adult Korean Orbital Volume in Three-Dimensional Computerized Tomography.

Kim, Tae Hyoung; Jun, Hong Sang; Byun, Young Ja

Original Article

Journal of the Korean Ophthalmological Society 2001;42(7):1011-1015.
Published online July 1, 2001.

The Normal Value of Adult Korean Orbital Volume in Three-Dimensional Computerized Tomography.

Tae Hyoung Kim, Hong Sang Jun, Young Ja Byun

Department of Ophthalmology, Seoul Adventist Hospital. blueirisl@hananet.net

3 차원 전산화 단층 촬영에서 성인 한국인 안와용적의 정상치

김태형(Tae Hyoung Kim),전홍상(Hong Sang Jun),변영자(Young Ja Byun)

Abstract

PURPOSE
This study is to know a normal orbital volume of adult Koreans. METHODS: We had taken 3-dimension orbital CT of 100 patients who had visited the department of ophthalmology and emergency room. Among them 30 patients who were reported to show abnormal orbital CT finding were excluded. Thereafter we measured orbital CT volume in eyes of 70 patients. We appointed inner sides of orbital wall in coronal plane image and reconstructed 3-dimension images by means of soft ware program(silhouette) in CT to measure the orbital volume. RESULTS: Average of orbital volume was 24.5 mm 3(left orbital vol. 24.25 mm 3, right 24.75 mm 3), in males and 23.5 mm3(left 23.25 mm 3 , right 23.75 mm 3)in females. Difference between right orbit and left orbit was 2% and average of male orbital volume was bigger than female by 4%. CONCLUSION: Adult Korean orbital volume measure was useful for differential diagnosis in orbital desease.

Key Words: Orbital volume;Three dimensional orbital CT