Minimal Detectable Bone Fracture Gaps in CT Images and Digital Three-Dimensional (3D) Radii Models.

Autor: Bittner-Frank M; Department of Orthopedics and Trauma Surgery, Medical University of Vienna, Währinger Gürtel 18-20, 1090, Vienna, Austria.; Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Vienna, Austria., Strassl A; Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, Vienna, Austria., Unger E; Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Vienna, Austria., Hirtler L; Center for Anatomy and Cell Biology, Medical University of Vienna, Vienna, Austria., Eckhart B; Department of Orthopedics and Trauma Surgery, Medical University of Vienna, Währinger Gürtel 18-20, 1090, Vienna, Austria., Koenigshofer M; Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Vienna, Austria., Stoegner A; Department of Orthopedics and Trauma Surgery, Medical University of Vienna, Währinger Gürtel 18-20, 1090, Vienna, Austria., Staats K; Department of Orthopedics and Trauma Surgery, Medical University of Vienna, Währinger Gürtel 18-20, 1090, Vienna, Austria., Kainberger F; Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, Vienna, Austria., Windhager R; Department of Orthopedics and Trauma Surgery, Medical University of Vienna, Währinger Gürtel 18-20, 1090, Vienna, Austria., Moscato F; Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Vienna, Austria.; Ludwig Boltzmann Institute for Cardiovascular Research, Vienna, Austria.; Austrian Cluster for Tissue Regeneration, Vienna, Austria., Benca E; Department of Orthopedics and Trauma Surgery, Medical University of Vienna, Währinger Gürtel 18-20, 1090, Vienna, Austria. emir.benca@muv.ac.at.
Jazyk: angličtina
Zdroj: Journal of imaging informatics in medicine [J Imaging Inform Med] 2024 Jul 09. Date of Electronic Publication: 2024 Jul 09.
DOI: 10.1007/s10278-024-01185-9
Abstrakt: Knowledge of the minimal detectable bone fracture gap is essential in three-dimensional (3D) models, particularly in pre-operative planning of osteosynthesis to avoid overlooking gaps. In this study, defined incisions and bony displacements ranging from 100 to 400 µm were created in diaphyseal radii in 20 paired forearm specimens and verified with light microscopy. The specimens were scanned utilizing different computed tomography (CT) technologies/scanners, specimen positionings, scan protocols, image segmentations, and processing protocols. Inter- and intra-operator variabilities were reported as coefficient kappa. In CT images, fracture gaps of 100 µm and bone lamellae of 300 µm and 400 µm width were identified at a rate of 80 to 100%, respectively, independent of the investigated settings. In contrast, only 400µm incisions and bony displacements were visible in digital 3D models, with detection rates dependent on CT technology, image segmentation, and post-processing algorithm. 3D bone models based on state-of-the-art CT imaging can reliably visualize clinically relevant bone fracture gap sizes. However, verification of fractures to be surgically addressed should be verified with the original CT image series.
(© 2024. The Author(s).)
Databáze: MEDLINE
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