EPI-DWI versus HASTE-DWI quality assessment
| Parameter | EPI-DWI | HASTE-DWI | P Value |
|---|---|---|---|
| Qualitative parameters (n = 21): 5-point Likert scale | |||
| Overall image quality | 3.33 | 4.19 | <.001 |
| Artifacts | 3.67 | 4.38 | <.001 |
| Tumor sharpness | 3.24 | 4.14 | <.001 |
| Tumor conspicuity | 3.52 | 4.33 | <.001 |
| Quantitative parameters (n = 21) | |||
| Geometric distortion | |||
| Transverse ocular diameter deviation (mean ± SD) | 0.610 ± 0.301 mm | 0.648 ± 0.339 mm | .568 |
| Anteroposterior ocular diameter deviation (mean ± SD) | 6.105 ± 1.82 mm | 0.643 ± 0.43 mm | <.001 |
| SNR | |||
| b = 0 | 10.616 ± 1.844 | 8.283 ± 1.691 | <.001 |
| b = 500 | 10.268 ± 1.843 | 7.875 ± 1.124 | <.001 |
| b = 1000 | 9.578 ± 1.48 | 7.461 ± 1.1 | <.001 |
| CNR | |||
| b = 0 | 10.529 ± 1.553 | 8.3 ± 1.527 | <.001 |
| b = 500 | 10.12 ± 1.254 | 7.553 ± 1.33 | <.001 |
| b = 1000 | 9.4 ± 1.789 | 7.295 ± 1.368 | <.001 |