Fig. 8
Helix angle (HA), transverse angle (TA), sheetlet elevation (SE) and sheetlet azimuth (SA) in LV myocardium reconstructed with DTI and STSRI using different reconstruction parameters. Here, high-resolution STSRI data with isotropic pixel size of 1.1 μm were analysed using centre frequencies (CF) of \( \frac{2\pi}{3},\ \frac{\sqrt{2}\pi}{3},\ \frac{\pi}{3},\ \frac{\pi}{3\sqrt{2}},\ \frac{\pi}{6} \) and corresponding kernel sizes of 73, 73, 93, 113, 173 voxels. The STSRI image corresponding to this region is given in Fig. 9