Research Article
A General Framework for Automated Accurate Calculation of b-Matrix (Auto-b) in Diffusion MRI Pulse Sequences
Table 5
Estimated physiological parameters and their relative error using accurate and nominal b-values in an optimized SE-EPI sequence.
| | IVIM fitting results | S 0 | D (10−3 mm2/s) | f | (10−2 mm2/s) |
| Case 1
0.8 × 0.8 × 0.8 mm3 | Ideal parameters | 1000 | 2.20 | 0.30 | 1.60 | | Accurate b-values | 1000.11 (−0.01%) | 2.20 (−0.18%) | 0.30 (0.37%) | 1.61 (−0.42%) | | Approximate b-values | 954.02 (4.60%) | 2.21 (−0.52%) | 0.29 (4.93%) | 1.14 (29.05%) |
| Case 2
0.6 × 0.6 × 0.8 mm3 | Ideal parameters | 1000.00 | 2.20 | 0.30 | 1.60 | | Accurate b-values | 1000.13 (−0.01%) | 2.20 (−0.19%) | 0.30 (0.37%) | 1.61 (−0.44%) | | Approximate b-values | 927.56 (7.24%) | 2.21 (−0.46%) | 0.28 (6.00%) | 0.85 (46.91%) |
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