【摘要】：目的:通過對(duì)比正常人雙側(cè)肱骨近端骨骼三維CT,論證雙側(cè)肱骨近端骨骼外形的一致性,為以健側(cè)肱骨近端骨骼外形為模板,用雙側(cè)相減的方法求出患側(cè)骨缺損形態(tài)及體積參數(shù)的方法提供解剖學(xué)基礎(chǔ)。方法:采集正常人群雙側(cè)肱骨近端三維CT數(shù)據(jù),通過專門設(shè)計(jì)軟件VMed Viewer,對(duì)圖像進(jìn)行分割、填充、三維重建及翻轉(zhuǎn)和對(duì)準(zhǔn)。將配準(zhǔn)后雙側(cè)肱骨近端三維圖形數(shù)據(jù)引入VRmesh軟件,得出雙側(cè)肱骨近端骨骼表面各對(duì)應(yīng)點(diǎn)間位置平均差異值、最大位置差異值及最大位置差異點(diǎn)在肱骨近端所處部位。結(jié)果:配準(zhǔn)后雙側(cè)肱骨頭表面各對(duì)應(yīng)點(diǎn)間平均距離為0.16±0.26 mm;各標(biāo)本中最大對(duì)應(yīng)點(diǎn)間距離平均值3.27±0.87 mm;所有標(biāo)本中最大的對(duì)應(yīng)點(diǎn)間距離為5.90 mm。在各個(gè)標(biāo)本中,相對(duì)距離最大對(duì)應(yīng)點(diǎn)分布于后部大結(jié)節(jié)11例、后部肱骨頭關(guān)節(jié)面65例,位于結(jié)節(jié)間溝40例、前部大結(jié)節(jié)13例、前部肱骨頭關(guān)節(jié)面19例、小結(jié)節(jié)16例。結(jié)論:健康成年人雙側(cè)肱骨近端骨性結(jié)構(gòu)外形近似。雙側(cè)肱骨近端骨骼表面各對(duì)應(yīng)點(diǎn)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(guó)科學(xué)院軟件研究所;
【基金】：國(guó)家自然科學(xué)基金青年科學(xué)基金項(xiàng)目(項(xiàng)目批準(zhǔn)號(hào)81201438)
【分類號(hào)】：R683.41;R816.8

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