In Vivo Measurements of Cortical Thickness and Porosity at the Proximal Third of the Tibia Using Guided Waves: Comparison with Site-Matched Peripheral Quantitative Computed Tomography and Distal High-Resolution Peripheral Quantitative Computed Tomography
| Autor: | Johannes Schneider, Zully Ritter, Gabriele Armbrecht, Donatien Ramiandrisoa, Dieter Felsenberg, Jean-Gabriel Minonzio, Kay Raum |
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| Přispěvatelé: | Charité - UniversitätsMedizin = Charité - University Hospital [Berlin], Laboratoire d'Imagerie Biomédicale (LIB), Institut National de la Santé et de la Recherche Médicale (INSERM)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Sorbonne Université (SU), Universidad de Valparaiso [Chile], Gestionnaire, Hal Sorbonne Université |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Male
Materials science Acoustics and Ultrasonics Peripheral quantitative computed tomography [SDV.IB.IMA]Life Sciences [q-bio]/Bioengineering/Imaging Biophysics 030209 endocrinology & metabolism 01 natural sciences 03 medical and health sciences 0302 clinical medicine Bone Density 0103 physical sciences Cortical Bone medicine Humans Guided waves Radiology Nuclear Medicine and imaging Tibia Quantitative computed tomography Dispersion (water waves) 010301 acoustics Dual-energy X-ray absorptiometry Ultrasonography Cortical bone porosity Guided wave testing Radiological and Ultrasound Technology medicine.diagnostic_test Middle Aged Peripheral Axial transmission ultrasound Transverse plane Cross-Sectional Studies medicine.anatomical_structure [SDV.IB.IMA] Life Sciences [q-bio]/Bioengineering/Imaging Evaluation Studies as Topic Female Cortical bone Tomography X-Ray Computed Porosity Biomedical engineering |
| Zdroj: | Ultrasound in Medicine & Biology Ultrasound in Medicine & Biology, Elsevier, 2019, 45 (5), pp.1234-1242. ⟨10.1016/j.ultrasmedbio.2019.01.008⟩ Ultrasound in Medicine & Biology, 2019, 45 (5), pp.1234-1242. ⟨10.1016/j.ultrasmedbio.2019.01.008⟩ |
| ISSN: | 0301-5629 |
| DOI: | 10.1016/j.ultrasmedbio.2019.01.008⟩ |
| Popis: | International audience; The aim of this study was to estimate cortical porosity (Ct.Po) and cortical thickness (Ct.Th) using 500-kHz bi-directional axial transmission (AT). Ct.ThAT and Ct.PoAT were obtained at the tibia in 15 patients from a 2-D transverse isotropic free plate model fitted to measured guided wave dispersion curves. The velocities of the first arriving signal (υFAS) and A0 mode (υA0) were also determined. Site-matched peripheral quantitative computed tomography (pQCT) provided volumetric cortical bone mineral density (Ct.vBMDpQCT) and Ct.ThpQCT. Good agreement was found between Ct.ThAT and Ct.ThpQCT (R2 = 0.62, root mean square error [RMSE] = 0.39 mm). Ct.vBMDpQCT correlated with Ct.PoAT (R2 = 0.57), υFAS (R2 = 0.43) and υA0 (R2 = 0.28). Furthermore, a significant correlation was found between AT and distal high-resolution pQCT. The measurement ofcortical parameters at the tibia using guided waves might improve the prediction of bone fractures in a cost-effective and radiation-free manner. |
| Databáze: | OpenAIRE |
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