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http://dx.doi.org/10.4047/jkap.2021.59.3.299

Effect of image matching experience on the accuracy and working time for 3D image registration between radiographic and optical scan images  

Mai, Hang-Nga (Institute for Translational Research in Dentistry, Kyungpook National University)
Lee, Du-Hyeong (Institute for Translational Research in Dentistry, Kyungpook National University)
Publication Information
The Journal of Korean Academy of Prosthodontics / v.59, no.3, 2021 , pp. 299-304 More about this Journal
Abstract
Purpose. The purpose of the present study was to investigate the effects of image matching experience of operators on the accuracy and working time of image registration between radiographic and optical scan images. Materials and methods. Computed tomography and optical scan of a dentate dental arch were obtained. Image matching between the computed tomography and the optical scan (IDC S1, Amann Girrbach, Koblah, Austria) was performed using the point-based automatic registration method in planning software programs (Implant Studio, 3Shape, Copenhagen, Denmark) using two different experience conditions on image registration: experienced group and inexperienced group (n = 15 per group, N = 30). The accuracy of image registration in each group was evaluated by measuring linear discrepancies between matched images, and working time was recorded. Independent t test was used to statistically analyze the result data (α = .05). Results. In the linear deviation, no statistically significant difference was found between the experienced and inexperienced groups. Meanwhile, the working time for image registration was significantly shorter in the experienced group than in the inexperienced group (P = .007). Conclusion. Difference in the image matching experience may not influence the accuracy of image registration of optical scan to computed tomography when the point-based automatic registration was used, but affect the working time for the image registration.
Keywords
Accuracy; Computed tomography; Experience; Image registration; Optical scan; Working time;
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