Pahadia Mayank, Katkar Rujuta, Geha Hassem
Oral and Maxillofacial Diagnostic Sciences, University of Florida, Gainesville, USA.
Comprehensive Dentistry/Oral and Maxillofacial Radiology, University of Texas Health Science Center at San Antonio, San Antonio, USA.
Cureus. 2023 Feb 15;15(2):e35016. doi: 10.7759/cureus.35016. eCollection 2023 Feb.
Determine the effect of the motion correction system on cone-beam computed tomography (CBCT) image quality parameters, artifacts, and contrast-to-noise ratio (CNR) using different motion settings.
A customized phantom insert array was prepared using SEDENTEX CT IQ Phantom (Leeds Test Objects, Yorkshire, England) stabilized over a rotating electric turntable. Thirty baseline CBCT scans were acquired with standardized technique factors on the ProMax 3D (Planmeca, Helsinki, Finland) machine using combinations of different motion settings, including no motion, three- and six-degree motion, and with and without the use of a motion correction system. The standardized images were exported to ImageJ software. Image quality parameters, artifacts, and CNR values were evaluated and compared among the different acquisition settings.
The use of the motion correction system algorithm compared with the different motion settings showed a statistically significant difference for all the parameters (p<0.05) except for artifact values for six-degree motion (p<0.07). The effect of different motion settings on the parameters was not statistically significant.
The use of a motion correction system, a proprietary algorithm-based system incorporated in the ProMax 3D CBCT unit, deteriorates the image quality characteristics evaluated in this in vitro study, namely artifact value and CNR. Its use in clinical settings might be limited to situations where patient motion is expected and appropriate head stabilization is not possible due to age or disease.
使用不同的运动设置，确定运动校正系统对锥束计算机断层扫描（CBCT）图像质量参数、伪影和对比度噪声比（CNR）的影响。
使用SEDENTEX CT IQ体模（英国约克郡利兹测试物体公司）制备定制的体模插入阵列，并将其稳定在旋转的电动转盘上。在ProMax 3D（芬兰赫尔辛基普兰梅卡公司）机器上，使用不同运动设置的组合，包括无运动、三度和六度运动，以及使用和不使用运动校正系统，以标准化技术参数采集30次基线CBCT扫描。将标准化图像导出到ImageJ软件。对不同采集设置下的图像质量参数、伪影和CNR值进行评估和比较。
与不同运动设置相比，运动校正系统算法的使用对所有参数均显示出统计学上的显著差异（p<0.05），六度运动的伪影值除外（p<0.07）。不同运动设置对参数的影响无统计学意义。
在本体外研究中，ProMax 3D CBCT设备中基于专有算法的运动校正系统的使用会降低所评估的图像质量特征，即伪影值和CNR。其在临床环境中的使用可能仅限于预期患者会出现运动且由于年龄或疾病无法进行适当头部固定的情况。
