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Architecture Assessment

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Jean-baptiste Pialat – One of the best experts on this subject based on the ideXlab platform.

  • Clinical cone beam computed tomography compared to high-resolution peripheral computed tomography in the Assessment of distal radius bone
    Osteoporosis International, 2016
    Co-Authors: C. Charry, Stéphanie Boutroy, Radhouane Ellouz, François Duboeuf, Roland Chapurlat, Helene Follet, Jean-baptiste Pialat

    Abstract:

    SummaryClinical cone beam computed tomography (CBCT) was compared to high-resolution peripheral quantitative computed tomography (HR-pQCT) for the Assessment of ex vivo radii. Strong correlations were found for geometry, volumetric density, and trabecular structure. Using CBCT, bone Architecture Assessment was feasible but compared to HR-pQCT, trabecular parameters were overestimated whereas cortical ones were underestimated.IntroductionHR-pQCT is the most widely used technique to assess bone microArchitecture in vivo. Yet, this technology has been only applicable at peripheral sites, in only few research centers. Clinical CBCT is more widely available but quantitative Assessment of the bone structure is usually not performed. We aimed to compare the Assessment of bone structure with CBCT (NewTom 5G, QR, Verona, Italy) and HR-pQCT (XtremeCT, Scanco Medical AG, Brüttisellen, Switzerland).MethodsTwenty-four distal radius specimens were scanned with these two devices with a reconstructed voxel size of 75 μm for Newtom 5G and 82 μm for XtremeCT, respectively. A rescaling-registration scheme was used to define the common volume of interest. Cortical and trabecular compartments were separated using a semiautomated double contouring method. Density and microstructure were assessed with the HR-pQCT software on both modality images.ResultsStrong correlations were found for geometry parameters (r = 0.98–0.99), volumetric density (r = 0.91–0.99), and trabecular structure (r = 0.94–0.99), all p 

  • Clinical cone beam computed tomography compared to high-resolution peripheral computed tomography in the Assessment of distal radius bone.
    Osteoporosis International, 2016
    Co-Authors: C. Charry, Stéphanie Boutroy, Radhouane Ellouz, François Duboeuf, Roland Chapurlat, Helene Follet, Jean-baptiste Pialat

    Abstract:

    Summary
    Clinical cone beam computed tomography (CBCT) was compared to high-resolution peripheral quantitative computed tomography (HR-pQCT) for the Assessment of ex vivo radii. Strong correlations were found for geometry, volumetric density, and trabecular structure. Using CBCT, bone Architecture Assessment was feasible but compared to HR-pQCT, trabecular parameters were overestimated whereas cortical ones were underestimated.

C. Charry – One of the best experts on this subject based on the ideXlab platform.

  • Clinical cone beam computed tomography compared to high-resolution peripheral computed tomography in the Assessment of distal radius bone
    Osteoporosis International, 2016
    Co-Authors: C. Charry, Stéphanie Boutroy, Radhouane Ellouz, François Duboeuf, Roland Chapurlat, Helene Follet, Jean-baptiste Pialat

    Abstract:

    SummaryClinical cone beam computed tomography (CBCT) was compared to high-resolution peripheral quantitative computed tomography (HR-pQCT) for the Assessment of ex vivo radii. Strong correlations were found for geometry, volumetric density, and trabecular structure. Using CBCT, bone Architecture Assessment was feasible but compared to HR-pQCT, trabecular parameters were overestimated whereas cortical ones were underestimated.IntroductionHR-pQCT is the most widely used technique to assess bone microArchitecture in vivo. Yet, this technology has been only applicable at peripheral sites, in only few research centers. Clinical CBCT is more widely available but quantitative Assessment of the bone structure is usually not performed. We aimed to compare the Assessment of bone structure with CBCT (NewTom 5G, QR, Verona, Italy) and HR-pQCT (XtremeCT, Scanco Medical AG, Brüttisellen, Switzerland).MethodsTwenty-four distal radius specimens were scanned with these two devices with a reconstructed voxel size of 75 μm for Newtom 5G and 82 μm for XtremeCT, respectively. A rescaling-registration scheme was used to define the common volume of interest. Cortical and trabecular compartments were separated using a semiautomated double contouring method. Density and microstructure were assessed with the HR-pQCT software on both modality images.ResultsStrong correlations were found for geometry parameters (r = 0.98–0.99), volumetric density (r = 0.91–0.99), and trabecular structure (r = 0.94–0.99), all p 

  • Clinical cone beam computed tomography compared to high-resolution peripheral computed tomography in the Assessment of distal radius bone.
    Osteoporosis International, 2016
    Co-Authors: C. Charry, Stéphanie Boutroy, Radhouane Ellouz, François Duboeuf, Roland Chapurlat, Helene Follet, Jean-baptiste Pialat

    Abstract:

    Summary
    Clinical cone beam computed tomography (CBCT) was compared to high-resolution peripheral quantitative computed tomography (HR-pQCT) for the Assessment of ex vivo radii. Strong correlations were found for geometry, volumetric density, and trabecular structure. Using CBCT, bone Architecture Assessment was feasible but compared to HR-pQCT, trabecular parameters were overestimated whereas cortical ones were underestimated.

Helene Follet – One of the best experts on this subject based on the ideXlab platform.

  • Clinical cone beam computed tomography compared to high-resolution peripheral computed tomography in the Assessment of distal radius bone
    Osteoporosis International, 2016
    Co-Authors: C. Charry, Stéphanie Boutroy, Radhouane Ellouz, François Duboeuf, Roland Chapurlat, Helene Follet, Jean-baptiste Pialat

    Abstract:

    SummaryClinical cone beam computed tomography (CBCT) was compared to high-resolution peripheral quantitative computed tomography (HR-pQCT) for the Assessment of ex vivo radii. Strong correlations were found for geometry, volumetric density, and trabecular structure. Using CBCT, bone Architecture Assessment was feasible but compared to HR-pQCT, trabecular parameters were overestimated whereas cortical ones were underestimated.IntroductionHR-pQCT is the most widely used technique to assess bone microArchitecture in vivo. Yet, this technology has been only applicable at peripheral sites, in only few research centers. Clinical CBCT is more widely available but quantitative Assessment of the bone structure is usually not performed. We aimed to compare the Assessment of bone structure with CBCT (NewTom 5G, QR, Verona, Italy) and HR-pQCT (XtremeCT, Scanco Medical AG, Brüttisellen, Switzerland).MethodsTwenty-four distal radius specimens were scanned with these two devices with a reconstructed voxel size of 75 μm for Newtom 5G and 82 μm for XtremeCT, respectively. A rescaling-registration scheme was used to define the common volume of interest. Cortical and trabecular compartments were separated using a semiautomated double contouring method. Density and microstructure were assessed with the HR-pQCT software on both modality images.ResultsStrong correlations were found for geometry parameters (r = 0.98–0.99), volumetric density (r = 0.91–0.99), and trabecular structure (r = 0.94–0.99), all p 

  • Clinical cone beam computed tomography compared to high-resolution peripheral computed tomography in the Assessment of distal radius bone.
    Osteoporosis International, 2016
    Co-Authors: C. Charry, Stéphanie Boutroy, Radhouane Ellouz, François Duboeuf, Roland Chapurlat, Helene Follet, Jean-baptiste Pialat

    Abstract:

    Summary
    Clinical cone beam computed tomography (CBCT) was compared to high-resolution peripheral quantitative computed tomography (HR-pQCT) for the Assessment of ex vivo radii. Strong correlations were found for geometry, volumetric density, and trabecular structure. Using CBCT, bone Architecture Assessment was feasible but compared to HR-pQCT, trabecular parameters were overestimated whereas cortical ones were underestimated.