Journal: BMC Nephrology

Article Title: Comparison of single CT scan assessment of bone mineral density, vascular calcification and fat mass with standard clinical measurements in renal transplant subjects: the ABC HeART study

doi: 10.1186/s12882-015-0182-6

Figure Lengend Snippet: Trabecular and Cortical QCT BMD calculation using the Mindways QCT Pro Bone Mineral Densitometry System Version 4.2.3

Article Snippet: Fig. 1 Trabecular and Cortical QCT BMD calculation using the Mindways QCT Pro Bone Mineral Densitometry System Version 4.2.3 The extent of arterial calcification in the abdominal aorta detected by CT was evaluated using 2 standardized methods [ – ]; a volumetric analysis using threshold based segmentation (Advantage workstation, GE) and a semi-quantitative Aortic Calcification Index (ACI) which involves visual assessment of 12 radial sectors at 10 axial levels as previously described by Kabaya et al . [ ], Fig. .

Techniques:

Journal: Frontiers in Bioengineering and Biotechnology

Article Title: Biomechanical Effects of a Cross Connector in Sacral Fractures – A Finite Element Analysis

doi: 10.3389/fbioe.2021.669321

Figure Lengend Snippet: Variations of the Young’s modulus (MPa) and Poisson’s ratio of the interface between the screws and the bone for the osseointegration analysis.

Article Snippet: The resulting maximum stresses for each repair strategy (without fixation, fixation without CC, fixation with CC), for all three loading conditions (Flexion, lateral bending and torsion) and for the nine levels of osseointegration ( min with interface stiffness comparable to cancellous bone, average with stiffness between cancellous and cortical bone and max with stiffness comparable to cortical bone) were calculated using post-processing routines in Abaqus (Dassault Systèmes, Vélizy-Villacoublay, France).

Techniques:

Journal: Frontiers in Bioengineering and Biotechnology

Article Title: Biomechanical Effects of a Cross Connector in Sacral Fractures – A Finite Element Analysis

doi: 10.3389/fbioe.2021.669321

Figure Lengend Snippet: Violin plots depicting the maximum principal stresses (absolute values) in the disk L5/S1 (A) , fifth lumbar vertebrae (B) and fracture area (D) and the von Mises stresses in the fixation device (C) in MPa, statistically validated in different variations of osseointegration (100 MPa to 10.000 MPa) for the axial rotation case. In the disk area L5/S1, the resulting effect of a cross connector was not significant [ F (1,8) = 1.391, p = 0.2721, SS = 8.89*10^-7, δ = 0.0004, subplot A]. In the lumbar vertebra L5 [ F (1,8) = 4.955, p = 0.0566, SS = 1842, δ = 20.23, subplot B] and fixational device [ F (1,8) = 100, p < 0.0001, SS = 0.68, post-hoc t-test t (16) = 0.6971, p = 0.4957, δ = 0.39, subplot C], the effect of a cross connector was not significant. In the fracture area, the resulting principal stresses (subplot D) were significantly lower after the addition of a cross connector [ F (1,8) = 2066, p < 0.0001, SS = 51.78, post-hoc t-test t (16) = 46.28, p < 0.0001, δ = 3.392] (Mean, 25th and 75th percentile).

Article Snippet: The resulting maximum stresses for each repair strategy (without fixation, fixation without CC, fixation with CC), for all three loading conditions (Flexion, lateral bending and torsion) and for the nine levels of osseointegration ( min with interface stiffness comparable to cancellous bone, average with stiffness between cancellous and cortical bone and max with stiffness comparable to cortical bone) were calculated using post-processing routines in Abaqus (Dassault Systèmes, Vélizy-Villacoublay, France).

Techniques: