Objective analysis of orbital rim fracture CT images using curve and area measurement

Abstract The orbital bone presents a closed curve, and fracture results in disfigurement. An image analysis procedure was developed to examine before and after corrective surgery. An ellipse and circumscribed contour embodied the closed curve. Three-dimensional (3D) computed tomography (CT) images w...

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Main Authors: Myungchul Lee, Junghwan Yoo, Hasup Lee
Format: Article
Language:English
Published: Nature Portfolio 2024-11-01
Series:Scientific Reports
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Online Access:https://doi.org/10.1038/s41598-024-76818-8
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author Myungchul Lee
Junghwan Yoo
Hasup Lee
author_facet Myungchul Lee
Junghwan Yoo
Hasup Lee
author_sort Myungchul Lee
collection DOAJ
description Abstract The orbital bone presents a closed curve, and fracture results in disfigurement. An image analysis procedure was developed to examine before and after corrective surgery. An ellipse and circumscribed contour embodied the closed curve. Three-dimensional (3D) computed tomography (CT) images were collected from 25 patients. Orbital rim data were generated, and binary images were created to facilitate closed curve analysis. Various indices, including the solidity value (closed curve area/convex hull area) and ellipse distance (discrepancy between the closed curve and the ellipse traversing the curve), were utilized. The ratios of various indices—including the number of vertices, solidity value, and ellipse distance—between the affected and unaffected sides showed postoperative values that were closer to 1, which would indicate perfect symmetry, than the preoperative measurements (P < 0.05). The solidity value increased, while both the ellipse distance and curvature values decreased, reflecting the transformation of bends into smooth contours following reduction surgery (P < 0.05). Significant correlations were observed between 1-solidity, ellipse distance, and curvature using the Pearson correlation test (P < 0.05). This study validated postoperative changes in various indices and established correlations among multiple values, specifically solidity, ellipse distance, and curvature. Employing multiple indices with mutual complements has provided objective information confidently.
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spelling doaj-art-1ca32677d19a48c094ea5e3314b936e52024-11-17T12:24:28ZengNature PortfolioScientific Reports2045-23222024-11-011411910.1038/s41598-024-76818-8Objective analysis of orbital rim fracture CT images using curve and area measurementMyungchul Lee0Junghwan Yoo1Hasup Lee2Department of Plastic and Reconstructive Surgery, Konkuk University School of MedicineDepartment of Plastic and Reconstructive Surgery, Konkuk University School of MedicineEngineering Education Research Center, Konkuk UniversityAbstract The orbital bone presents a closed curve, and fracture results in disfigurement. An image analysis procedure was developed to examine before and after corrective surgery. An ellipse and circumscribed contour embodied the closed curve. Three-dimensional (3D) computed tomography (CT) images were collected from 25 patients. Orbital rim data were generated, and binary images were created to facilitate closed curve analysis. Various indices, including the solidity value (closed curve area/convex hull area) and ellipse distance (discrepancy between the closed curve and the ellipse traversing the curve), were utilized. The ratios of various indices—including the number of vertices, solidity value, and ellipse distance—between the affected and unaffected sides showed postoperative values that were closer to 1, which would indicate perfect symmetry, than the preoperative measurements (P < 0.05). The solidity value increased, while both the ellipse distance and curvature values decreased, reflecting the transformation of bends into smooth contours following reduction surgery (P < 0.05). Significant correlations were observed between 1-solidity, ellipse distance, and curvature using the Pearson correlation test (P < 0.05). This study validated postoperative changes in various indices and established correlations among multiple values, specifically solidity, ellipse distance, and curvature. Employing multiple indices with mutual complements has provided objective information confidently.https://doi.org/10.1038/s41598-024-76818-8Orbital boneFractureComputed tomographyCurveArea
spellingShingle Myungchul Lee
Junghwan Yoo
Hasup Lee
Objective analysis of orbital rim fracture CT images using curve and area measurement
Scientific Reports
Orbital bone
Fracture
Computed tomography
Curve
Area
title Objective analysis of orbital rim fracture CT images using curve and area measurement
title_full Objective analysis of orbital rim fracture CT images using curve and area measurement
title_fullStr Objective analysis of orbital rim fracture CT images using curve and area measurement
title_full_unstemmed Objective analysis of orbital rim fracture CT images using curve and area measurement
title_short Objective analysis of orbital rim fracture CT images using curve and area measurement
title_sort objective analysis of orbital rim fracture ct images using curve and area measurement
topic Orbital bone
Fracture
Computed tomography
Curve
Area
url https://doi.org/10.1038/s41598-024-76818-8
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AT junghwanyoo objectiveanalysisoforbitalrimfracturectimagesusingcurveandareameasurement
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