Chapter 55 - High-Resolution Imaging Techniques for Bone Quality Assessment
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Dose-efficient assessment of trabecular microstructure using ultra-high-resolution photon-counting CT
2022, Zeitschrift fur Medizinische PhysikCitation Excerpt :Nevertheless owing to the small dimensions of trabecular struts, the assessment of trabecular bone microarchitecture in its native 3D milieu is challenging. Typical trabecular thickness and separations at the spine are about 0.14–0.20 mm and 0.5–1.3 mm, respectively [2–5]. Techniques using dedicated high resolution peripheral CT equipment or dedicated imaging protocols devised for clinical CT scanners combined with sophisticated analysis software have been developed that permit evaluation of trabecular bone microstructure and to monitor physiological changes.
Analysis of mandible trabecular structure using digital periapical radiographs to assess low bone quality in postmenopausal women
2021, Saudi Dental JournalCitation Excerpt :DXA also cannot be used to depict the trabecular architecture (Sela et al., 2015). The combination of bone density measurements and trabecular structure improves the bone strength prediction, and is useful to evaluate bone quality and fracture risk (Burghardt et al., 2017; Ibrahim et al., 2013). The first phase of bone loss in postmenopausal women occurs in the trabeculae rather than the cortex, and increases the risk of fracture (Ji and Yu, 2015; Meiyanti, 2010).
Current developments and applications of micro-CT for the 3D analysis of multiphase mineral systems in geometallurgy
2020, Earth-Science ReviewsCitation Excerpt :The quick acquisition time allows us to look at dynamic processes such as deformation and fluid flow within the 3D volume. Furthermore, the parallel geometry of a synchrotron X-ray beam eliminates spatial artifacts seen with cone-beam sources used in standard laboratory micro-CT systems (Burghardt et al., 2017). A synchrotron is a type of circular accelerator.
The Feasibility of High-Resolution Peripheral Quantitative Computed Tomography (HR-pQCT) in Patients with Suspected Scaphoid Fractures
2020, Journal of Clinical DensitometryCitation Excerpt :High-resolution peripheral quantitative CT (HR-pQCT) may be a potential alternative imaging technique. It is a noninvasive technique that provides 3-dimensional images of peripheral bones at a low radiation dose and with a spatial resolution higher than currently used imaging techniques (16). Its high resolution may enable recognizing more and smaller scaphoid fractures than currently used techniques and enables microarchitectural bone evaluations of (fractured) scaphoid bones, which have already provided new insights into fracture mechanism, nonunion etiology, and optimal screw fixation and design in cadaveric bones (17–21).
What Is the Diagnostic Performance of Conventional Radiographs and Clinical Reassessment Compared with HR-pQCT Scaphoid Fracture Diagnosis?
2023, Clinical Orthopaedics and Related ResearchImproved Detection of Scaphoid Fractures with High-Resolution Peripheral Quantitative CT Compared with Conventional CT
2020, Journal of Bone and Joint Surgery