Table 2 Comparison of subjective image quality assessment scores between images of Silent MRA and 3D-TOF MRA sequences (mean ± SD)
Sequences | Uniformity | Artifact | Visualization of the internal carotid artery siphon | Overall image quality |
|---|---|---|---|---|
Silent MRA | 4.92 ± 0.82 | 4.56 ± 1.09 | 4.92 ± 0.76 | 4.79 ± 0.91 |
3D-TOF MRA | 2.39 ± 0.56 | 2.89 ± 0.90 | 2.81 ± 0.87 | 3.07 ± 0.86 |
Z | 32.65 | 24.21 | 31.08 | 25.69 |
P | < 0.05 | < 0.05 | < 0.05 | < 0.05 |