Trabecular Bone Assessment Using Magnetic-Resonance Imaging: A Pilot Study

Lauren Bohner, Pedro Tortamano, Norbert Meier, Felix Gremse, Johannes Kleinheinz and Marcel Hanisch
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Lauren Bohner: Department of Cranio-Maxillofacial Surgery, University Hospital Muenster, 48149 Muenster, Germany
Pedro Tortamano: Department of Prosthodontics, School of Dentistry, University of São Paulo, São Paulo 0508-000, Brazil
Norbert Meier: Institute of Clinical Radiology, University Clinics Muenster, 48149 Muenster, Germany
Felix Gremse: Department of Experimental Molecular Imaging, Helmholtz Institute, RWTH Aachen University, 52074 Aachen, Germany
Johannes Kleinheinz: Department of Cranio-Maxillofacial Surgery, University Hospital Muenster, 48149 Muenster, Germany
Marcel Hanisch: Department of Cranio-Maxillofacial Surgery, University Hospital Muenster, 48149 Muenster, Germany

IJERPH, 2020, vol. 17, issue 24, 1-7

Abstract: The aim of this study was to assess trabecular bone morphology via magnetic-resonance imaging (MRI) using microcomputed tomography (µCT) as the control group. Porcine bone samples were scanned with T1-weighted turbo spin echo sequence imaging, using TR 25 ms, TE 3.5 ms, FOV 100 × 100 × 90, voxel size 0.22 × 0.22 × 0.50 mm, and scan time of 11:18. µCT was used as the control group with 80 kV, 125 mA, and a voxel size of 16 µm. The trabecular bone was segmented on the basis of a reference threshold value and morphological parameters. Bone volume (BV), Bone-volume fraction (BvTv), Bone specific surface (BsBv), trabecular thickness (TbTh), and trabecular separation (TbSp) were evaluated. Paired t -test and Pearson correlation test were performed at p = 0.05. MRI overestimated BV, BvTv, TbTh, and TbSp values. BsBv was the only parameter that was underestimated by MRI. High statistical correlation (r = 0.826; p < 0.05) was found for BV measurements. Within the limitations of this study, MRI overestimated trabecular bone parameters, but with a statistically significant fixed linear offset.

Keywords: dental implants; magnetic-resonance imaging; microCT (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2020
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