【摘要】：目的:通過對比正常人雙側肱骨近端骨骼三維CT,論證雙側肱骨近端骨骼外形的一致性,為以健側肱骨近端骨骼外形為模板,用雙側相減的方法求出患側骨缺損形態(tài)及體積參數(shù)的方法提供解剖學基礎。方法:采集正常人群雙側肱骨近端三維CT數(shù)據(jù),通過專門設計軟件VMed Viewer,對圖像進行分割、填充、三維重建及翻轉和對準。將配準后雙側肱骨近端三維圖形數(shù)據(jù)引入VRmesh軟件,得出雙側肱骨近端骨骼表面各對應點間位置平均差異值、最大位置差異值及最大位置差異點在肱骨近端所處部位。結果:配準后雙側肱骨頭表面各對應點間平均距離為0.16±0.26 mm;各標本中最大對應點間距離平均值3.27±0.87 mm;所有標本中最大的對應點間距離為5.90 mm。在各個標本中,相對距離最大對應點分布于后部大結節(jié)11例、后部肱骨頭關節(jié)面65例,位于結節(jié)間溝40例、前部大結節(jié)13例、前部肱骨頭關節(jié)面19例、小結節(jié)16例。結論:健康成年人雙側肱骨近端骨性結構外形近似。雙側肱骨近端骨骼表面各對應點間平均誤差為0.16±0.26 mm,最大誤差為5.9 mm。
[Abstract]:Objective: to study the conformability of bilateral proximal humerus by comparing the three dimensional CT, of the bilateral proximal humerus in normal subjects, and to use the shape of the normal proximal humerus as a template. The method of bilateral subtraction was used to calculate the shape and volume parameters of the affected bone defect. Methods: three dimensional CT data were collected from the proximal humerus of normal subjects. The images were segmented, filled, reconstructed, flipped and aligned by a special design software VMed Viewer,. The 3D figure data of bilateral proximal humerus were introduced into VRmesh software after registration, and the average position difference value of each corresponding point on the surface of bilateral proximal humerus was obtained, and the maximum position difference value and the maximum position difference point were obtained in the position of proximal humerus. Results: after registration, the average distance between the corresponding points on the surface of bilateral humerus head was 0.16 鹵0.26 mm;. The average distance between corresponding points in all specimens was 3.27 鹵0.87 mm;. The maximum distance between corresponding points in all specimens was 5.90 mm.. In each specimen, the maximum relative distance was found in 11 cases of posterior greater tubercle, 65 cases of posterior humeral head articular surface, 40 cases of intertuberous sulcus, 13 cases of anterior large tubercle, 19 cases of anterior humeral head articular surface and 16 cases of small tubercle. Conclusion: the shape of bilateral proximal humerus is similar in healthy adults. The mean error between the corresponding points of bilateral proximal humerus is 0. 16 鹵0. 26 mm,. The maximum error is 5.9 mm..
【作者單位】： 北京積水潭醫(yī)院;中國科學院軟件研究所;
【基金】：國家自然科學基金青年科學基金項目(項目批準號81201438)
【分類號】：R683.41;R816.8

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