Table 4.
Comparison of qualitative scores of each reviewer for DWI techniques
| Median for reviewer 1 | Interquartile range for reviewer 1 (25%–75%) |
p-value for reviewer 1 |
Median for reviewer 2 |
Interquartile range for reviewer 2 (25%–75%) |
p value for reviewer 2 |
||
|---|---|---|---|---|---|---|---|
| Geometric distortion a | ssEPI-DWI | 3 | 3–3 | <0.001 c | 3 | 2–3 | <0.001 c |
| ssTSE-DWI | 1 | 1–1 | 1 | 1–1 | |||
| Artifacts a | ssEPI_DWI | 2 | 2–3 | <0.001 c | 2 | 2–3 | <0.001 c |
| ssTSE-DWI | 2 | 1–2 | 2 | 1–2 | |||
| Resolution b | ssEPI_DWI | 4 | 3–4 | 0.013d | 4 | 3–4 | <0.001 d |
| ssTSE-DWI | 4 | 4–5 | 4 | 4–5 | |||
| Demarcation b | ssEPI_DWI | 4 | 4–5 | <0.001 c | 4 | 3–5 | 0.002 c |
| ssTSE-DWI | 3 | 3–4 | 3 | 2–4 | |||
| Overall quality b | ssEPI_DWI | 4 | 4-5 | <0.001d | 3 | 3–4 | <0.001 d |
| ssTSE-DWI | 5 | 4–5 | 4 | 4–5 |
a
Having more negative ranks means higher quality for geometric distortion and artifacts.
b
Having more positive ranks means higher quality for resolution, demarcation and overall quality.
c
ssTSE-DWI had more negative ranks.
d
ssTSE-DWI had more positive ranks.