本文關鍵詞： CBCT 頭影測量 面部對稱性 標記點　出處：《南京醫(yī)科大學學報(自然科學版)》2017年04期 　論文類型：期刊論文

【摘要】：目的:評估錐形束CT(CBCT)對面部對稱性標記點識別的可靠性,為日后建立面部對稱性的正畸三維頭影測量分析提供參考。方法:對57例正畸患者,使用mimics10.0軟件對其CBCT圖像采用多平面重建法(矢狀向、水平向和冠狀向聯(lián)合定點)標定28個與面部對稱性相關的標記點。本研究共2位觀察者,每位重復定點3次,分別間隔2周和4周。計算每個標記點的各個維度坐標值的組間和組內相關系數(shù),以評估觀察者內部以及觀察者之間的定點的可靠性。結果:蝶鞍影像的中心(S)、枕骨大孔前緣之中點(Ba)、硬腭后部骨棘之尖(PNS)、前顱底篩板正中型同雞冠的骨性結構的中心點(Cg)、鼻額縫的最前點(N)、左右側蝶骨小翼的最外側緣[Antcr(L,R)]、左右側額骨、鼻骨和淚骨交界處[D’(L,R)]、左右側眶下孔點[K(L,R)]、左右側上頜牙槽嵴處最凹點[Maz(L,R)]、左右側眶下緣之最低點[Or(L,R)]、[Zyg(L,R)]、左右側髁突的頂點[Cd(L,R)]的可靠性良好,可用于CBCT三維頭影測量面部對稱性的分析。結論:本研究28個面部對稱性相關標記點中有19個標記點的可靠性良好,具有臨床實用價值。
[Abstract]:Objective: to evaluate the reliability of CT-CBCTs in recognition of facial symmetry markers, and to provide a reference for the establishment of orthodontic 3D cephalometric analysis of facial symmetry. Methods: 57 orthodontic patients were studied. Multiplanar reconstruction (sagittal, horizontal and coronal points) was used to calibrate 28 marker points related to facial symmetry using mimics10.0 software. The correlation coefficients between groups and within groups were calculated for each dimension coordinate value of each marker point. To assess the reliability of internal and inter-observer sites. Results: central Scroll in the Sella sellae image, Bajiao in the anterior margin of the foramen magnum, PNSS in the posterior part of the hard palate, and bony structure of the anterior skull base sieve plate. The centerpoint is Cgus, the anterior point of the suture of the nose and forehead, the lateral edge of the flank of the left and right sphenoid bones [Antcrus Lnr], the left and right frontal bones, At the junction of the nasal bone and the lacrimal bone, the left and right infraorbital foramen point [KGN], the most concave point at the left and right maxillary alveolar ridge, the lowest point of the left and right orbital lower margin, [ZygLRR], the apex of the left and right condyle [CDU LJ R], the reliability of the left and right condyle is good. Conclusion: 19 of 28 facial symmetry markers in this study have good reliability and clinical value.
【作者單位】： 南京醫(yī)科大學附屬口腔醫(yī)院正畸科;
【基金】：國家自然科學基金(81230022) 江蘇省臨床醫(yī)學專項(b12014073)
【分類號】：R783.5
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本文編號：1498099