دورية أكاديمية
Higher Computed Tomography (CT) Scan Resolution Improves Accuracy of Patient-specific Mandibular Models When Compared to Cadaveric Gold Standard.
| العنوان: | Higher Computed Tomography (CT) Scan Resolution Improves Accuracy of Patient-specific Mandibular Models When Compared to Cadaveric Gold Standard. |
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| المؤلفون: | Ahmed M; Undergraduate Student, Center for Design and Manufacturing Excellence, College of Engineering, The Ohio State University, Columbus, OH; Undergraduate Student, The Ohio State University College of Engineering, Department of Biomedical Engineering, Columbus, OH., Melaragno LE; Undergraduate Student, Center for Design and Manufacturing Excellence, College of Engineering, The Ohio State University, Columbus, OH; Undergraduate Student, The Ohio State University College of Engineering, Department of Biomedical Engineering, Columbus, OH., Nyirjesy SC; Resident, The Ohio State University Department of Otolaryngology- Head and Neck Surgery, Columbus, OH., von Windheim N; Post-Doctoral Fellow, Center for Design and Manufacturing Excellence, College of Engineering, The Ohio State University, Columbus, OH., Fenberg R; Clinical Researcher, The Ohio State University Department of Otolaryngology- Head and Neck Surgery, Columbus, OH; Medical Student, Albert Einstein College of Medicine, College of Medicine, New York, NY., Herster R; Research Specialist, Center for Design and Manufacturing Excellence, College of Engineering, The Ohio State University, Columbus, OH., Sheldon A; Medical Student, The Ohio State University College of Medicine, Columbus, OH., Binzel K; Professor, Wright Center of Innovation in Biomedical Imaging, Department of Radiology, OSUWMC, Columbus, OH., Knopp MV; Professor, Wright Center of Innovation in Biomedical Imaging, Department of Radiology, OSUWMC, Columbus, OH., Herderick ED; Director of Additive Manufacturing, Center for Design and Manufacturing Excellence, College of Engineering, The Ohio State University, Columbus, OH., VanKoevering KK; Assistant Professor, The Ohio State University Department of Otolaryngology- Head and Neck Surgery, Columbus, OH. Electronic address: Kyle.vankoevering@osumc.edu. |
| المصدر: | Journal of oral and maxillofacial surgery : official journal of the American Association of Oral and Maxillofacial Surgeons [J Oral Maxillofac Surg] 2023 Sep; Vol. 81 (9), pp. 1176-1185. Date of Electronic Publication: 2023 Jun 02. |
| نوع المنشور: | Journal Article; Research Support, Non-U.S. Gov't |
| اللغة: | English |
| بيانات الدورية: | Publisher: W.B. Saunders Co Country of Publication: United States NLM ID: 8206428 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1531-5053 (Electronic) Linking ISSN: 02782391 NLM ISO Abbreviation: J Oral Maxillofac Surg Subsets: MEDLINE |
| أسماء مطبوعة: | Original Publication: [Philadelphia, PA : W.B. Saunders Co., c1982- |
| مواضيع طبية MeSH: | Tomography, X-Ray Computed*/methods , Models, Anatomic*, Humans ; Cross-Sectional Studies ; Mandible/diagnostic imaging ; Cadaver |
| مستخلص: | Background: 3D-printed patient-specific anatomical models are becoming an increasingly popular tool for planning reconstructive surgeries to treat oral cancer. Currently there is a lack of information regarding model accuracy, and how the resolution of the computed tomography (CT) scan affects the accuracy of the final model. Purpose: The primary objective of this study was to determine the CT z-axis resolution necessary in creating a patient specific mandibular model with clinically acceptable accuracy for global bony reconstruction. This study also sought to evaluate the effect of the digital sculpting and 3D printing process on model accuracy. Study Design: This was a cross-sectional study using cadaveric heads obtained from the Ohio State University Body Donation Program. Independent Variables: The first independent variable is CT scan slice thickness of either 0.675 , 1.25, 3.00, or 5.00 mm. The second independent variable is the three produced models for analysis (unsculpted, digitally sculpted, 3D printed). Main Outcome Variable: The degree of accuracy of a model as defined by the root mean square (RMS) value, a measure of a model's discrepancy from its respective cadaveric anatomy. Analyses: All models were digitally compared to their cadaveric bony anatomy using a metrology surface scan of the dissected mandible. The RMS value of each comparison evaluates the level of discrepancy. One-way ANOVA tests (P < .05) were used to determine statistically significant differences between CT scan resolutions. Two-way ANOVA tests (P < .05) were used to determine statistically significant differences between groups. Results: CT scans acquired for 8 formalin-fixed cadaver heads were processed and analyzed. The RMS for digitally sculpted models decreased as slice thickness decreased, confirming that higher resolution CT scans resulted in statistically more accurate model production when compared to the cadaveric gold standard. Furthermore, digitally sculpted models were significantly more accurate than unsculpted models (P < .05) at each slice thickness. Conclusions: Our study demonstrated that CT scans with slice thicknesses of 3.00 mm or smaller created statistically significantly more accurate models than models created from slice thicknesses of 5.00 mm. The digital sculpting process statistically significantly increased the accuracy of models and no loss of accuracy through the 3D printing process was observed. (Copyright © 2023 American Association of Oral and Maxillofacial Surgeons. Published by Elsevier Inc. All rights reserved.) |
| تواريخ الأحداث: | Date Created: 20230614 Date Completed: 20230905 Latest Revision: 20230906 |
| رمز التحديث: | 20231215 |
| DOI: | 10.1016/j.joms.2023.05.014 |
| PMID: | 37315925 |
| قاعدة البيانات: | MEDLINE |
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Full Text Finder | تدمد: | 1531-5053 |
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| DOI: | 10.1016/j.joms.2023.05.014 |