Figure 10
Equatorial septal ROI distributions of angle differences between the ST and DTI vectors/orientation angles. A – deviation angles |∠v 3 ST e 3 DTI| and |∠v 2 ST e 2 DTI| are shown, alongside the corresponding distributions of |∠β’v 3 STβ’e 3 DTI|, |∠β”v 3 STβ”e 3 DTI|, |∠β’v 2 STβ’e 2 DTI|, |∠β”v 2 STβ”e 2 DTI|. B – deviation angles |∠v 1 ST e 1 DTI| and |∠v 1 ST e 1 DTI| are shown, alongside the corresponding distributions of |∠α’v 1 STα’e 1 DTI|, |∠α”v 1 STα”e 1 DTI|. DTI: Scan #1, 6-direction, b = 1000 s/mm2; ST: Scan #8; DTW = 3; STW = 3. FLASH: fast low angle shot; ST: structure tensor of FLASH data; DTI: diffusion tensor magnetic resonance imaging; DTW: derivative template width STW: smoothing template width; MAD: median absolute deviation; ROI: region(s) of interest. The symbols for vectors and derived angles are defined in Table 2. The corresponding distributions for the equatorial lateral ROI are in Additional file 7: Figure DS3.