Dual Q-ball imaging reveals intravoxel orientation distribution functions for laminar structures in the heart
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چکیده
QBI in 162 directions (b=4500 s/mm2). In panel a), colors encode principal sheet direction and both techniques show good qualitative agreement. However, closer inspection of the SNDFs shows intravoxel sheet crossing which cannot be resolved with conventional DTI. Panel b) illustrates this for the framed voxel from a), where the DTI sheet normal direction lies in between two distinct sheet populations whose normal directions appear as two local maxima of the SNDF. Figure 1: As the ODF describes fiber orientation (left), the SNDF reflects underlying sheet geometry (right). Color denotes local maxima (red) and minima (blue). Dual Q-ball imaging reveals intravoxel orientation distribution functions for laminar structures in the heart.
منابع مشابه
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