골형태분석법과 micro-CT를 이용한 골소주 특성에 대한 연구
Study of bony trabecular characteristics using bone morphometry and micro-CT
송영한, 이완, 이창진, 지정현, 이병도,
소속 상세정보
송영한 ( Song Young-Han ) - 원광대학교 치과대학 구강악안면방사선학교실
이완 ( Lee Wan ) - 원광대학교 치과대학 구강악안면방사선학교실
이창진 ( Lee Chang-Jin ) - 원광대학교 치과대학 구강악안면방사선학교실
지정현 ( Ji Jung-Hyun ) - 원광대학교 치과대학 구강악안면방사선학교실
이병도 ( Lee Byung-Do ) - 원광대학교 치과대학 구강악안면방사선학교실
KMID : 0896020070370010027
Abstract
Purpose : The research was done to investigate the effectiveness of 2D bony morphometry and microstructure of micro-computed tomography (micro-CT) on the osteoporotic bony change. We performed the bone morphometric analysis of proximal femur in ovariectomized rabbits with BMD and micro-CT examination.
Materials and Methods : Twenty-one female (Newzealand, about 16 weeks old, 2.9-3.4 kg) rabbits were used.
Three rabbits were sacrificed on the day when experiment began (Baseline). The remaining 18 rabbits were divided into two groups. One group was ovariectomized bilaterally (OVX) and the other animals were subjected to sham operation (Sham). Bone specimens were obtained from the right and left femur of sacrificed rabbits. At intervals of
1, 2, 3, 5, 6 months respectively, BMD tests were performed on the proximal femur by using PIXImus 2 (GE Lunar Co. USA), 2-dimensional bone morphometric analysis by custome computer program and 2D / 3D bone structure analysis by micro-CT (Skyscan1072, Antwerpen, Belgium). Statistical analysis was carried out for the correlation between bone morphometry , micro-CT and BMD
Result : BV/TV, Tb.Th, Tb.N of micro-CT parameters showed higher values in sham group than OVX group.
N.Nd/Ar.RI, N.NdNd, N.NdTm, N. TmTm, PmB/Ar.RI, 3-D BoxSlope of 2D morphometric parameters showed
higher values in Sham group than OVX group.The micro-CT parameters of Tb.Sp, Tb.N were statistically
significant correlated with BMD respectively. Several 2D morphometric parameters were statistically significant correlated with BMD respectively.
Conclusion : Several parameters of 2D bony morphometry and micro-CT showed effective aspects on the
osteoporotic bony change. (Korean J Oral Maxillofac Radiol 2007; 37 : 27-33)
키워드
Computed Tomography;Bone Mineral Density;Ovariectomy
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