Exact(5)
However, irrespective of the marker model used, the extent to which these systems reproduce the actual joint angles under study remains uncertain.
The marker model used is an adapted version of that used in the multi-segment foot model described in Hyslop et al (2010) [ 19].
When assessing the precision of the osteotomy measurements, the centre of gravity of the marker model of the posterior calcaneal fragment made up the fixed rigid body reference and the marker model of the anterior calcaneal fragment made up the migrating object.
For the CC joint, the centre of gravity in the anterior calcaneal fragment made up the fixed rigid body reference, and the marker model of the cuboid bone made up the migrating object.
As our markers were glued to a synthetic material and were not subject to any load, the mean error of rigid body fitting reported, less than 100 μm, represents the effects of film acquisition, the mathematical algorithm of the software, and the marker model used.
Similar(55)
The inclusion quality of the radiographs were condition numbers (spatial dispersion of markers within the bone fragment) for the marker models in the calcaneal fragments below 300 for each marker model, and a rigid body error threshold (marker fixation threshold) of maximum 0.5 mm.
The marker models in the coordinate systems were oriented with the osteotomy performed in the y-axis, the lengthening in the x-axis, and any medial lateral movement of the migration object with reference to the rigid object would occur in the z-axis.
One of the markers in the five marker model (11A2-b) in fact shows this distribution and this marker appears to represent part of a plasmid.
Adding stearoylcarnitine to the established marker model improved the DR to 32% (AUC 0.700) (Table 4; Figure 1) as the best overall model for LO-PE.
Then the matrix of interest is We consider the genomic marker model (1) where g is Gaussian and e is Gaussian.
The upper limit for mean-error rigid-body fitting (the stable marker model used for migration analysis) was 0.5 mm.
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