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J Clin Peiodontol:CBCT图像质量对根分叉测量准确度的影响

2020-06-25 MedSci原创 MedSci原创

本研究旨在研究锥形束计算机断层扫描(CBCT)图像中扫描参数对上颌磨牙的根分叉病变(FI)测量的准确性和置信度的影响。

本研究旨在研究锥形束计算机断层扫描(CBCT)图像中扫描参数对上颌磨牙的根分叉病变(FI)测量的准确性和置信度的影响。

使用一台CBCT设备对六个有上颌磨牙(n = 10)的半头骨进行CBCT扫描,使用固定参数(4×4 cm,12×17 cm;4 mA,90 kV)以及不同的扫描模式(SM),即图像/扫描(IS),体素尺寸(VZ)和旋转(R)。图像由两名经过校准的研究人员进行了分析。FI的单位为mm,或记录“贯通”破坏(FI III度)。每个评估者将在每次扫描中执行的FI测量评分为“confidence”或“not confident”。使用卡方检验对数据进行统计分析。

根据SM,检测CBCT的FI测量值与术中FI测量值之间的一致性(SM HiSp 180°,0.08:kappa 0.538,CI; 95%:0.362-0.714; SM Std.360°,0.25:kappa 0.698,CI; 95 %:0.534–0.861)。“confidence”的数量根据SM的不同而不同(SM Std.360°,0.08:52 out of 60 measurement; SM Std.360°, 0.25:16 out of 60 measurement; p <.001)。

因此,CBCT的SM对上颌磨牙FI测量值的置信度有显著的影响。

原文出处:

Carin Aime Rinne,Impact of CBCT image quality on the confidence of furcation measurements. Journal of Clinical Periodontology,2020 June, doi: 10.1111/jcpe.13298

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