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. 2021 Feb 3;8:100327. doi: 10.1016/j.ejro.2021.100327

Table 2.

Qualitative results of conventional reading (Likert score ± standard deviation), number of artifacts, diagnostic sequences and results from Wilcoxon signed rank test. After correction for multiple comparisons (Bonferroni correction, n = 3 to account for all body phased-array receive coil setups) a p-value <0.017 was considered statistically significant.

T2W-TSE
p-value
DWI
p-value
18CH 30CH 60CH 18CH vs. 30CH 18CH vs. 60CH 30CH vs. 60CH 18CH 30CH 60CH 18CH vs. 30CH 18CH vs. 60CH 30CH vs. 60CH
Resolution R1 4.3 ± 0.7 3.9 ± 1.1 4.1 ± 0.7 0.102 0.414 0.527 4.1 ± 0.7 4.2 ± 0.6 4.2 ± 0.6 0.564 0.655 1
R2 4.6 ± 0.7 4.4 ± 0.8 4.7 ± 0.5 0.414 0.655 0.317 4.4 ± 1.0 4.1 ± 0.9 4.3 ± 0.7 0.180 0.564 0.414
Capsule demarcation R1 4.8 ± 0.4 4.4 ± 0.8 4.8 ± 0.4 0.102 1 0.102 4.7 ± 0.5 4.4 ± 1.0 4.5 ± 0.7 0.180 0.157 0.564
R2 4.8 ± 0.4 4.6 ± 0.5 4.9 ± 0.3 0.157 0.564 0.083 4.8 ± 0.6 4.2 ± 0.9 4.6 ± 1.0 0.063 0.157 0.234
Zonal anatomy R1 4.0 ± 0.8 3.9 ± 1.1 4.2 ± 0.8 0.705 0.480 0.257 4.2 ± 0.8 3.9 ± 0.7 3.8 ± 0.8 0.257 0.046 0.705
R2 4.4 ± 0.7 4.6 ± 0.5 4.8 ± 0.4 0.317 0.102 0.480 4.6 ± 1.0 4.0 ± 1.2 4.3 ± 1.1 0.034 0.180 0.180
Overall IQ R1 4.3 ± 0.7 4.3 ± 1.1 4.4 ± 0.7 1 0.564 0.655 4.2 ± 0.8 4.1 ± 0.7 3.9 ± 0.9 0.655 0.180 0.480
R2 4.6 ± 0.7 4.3 ± 0.8 4.7 ± 0.5 0.180 0.655 0.102 4.4 ± 0.8 4.3 ± 0.7 4.5 ± 0.7 0.705 0.739 0.157
Periurethral clarity R1 4.4 ± 0.7 4.3 ± 1.1 4.5 ± 0.7 0.739 0.655 0.317
R2 4.7 ± 0.5 4.7 ± 0.7 4.9 ± 0.3 1 0.317 0.414
Geometric distortion R1 1.6 ± 1.0 2.0 ± 1.1 1.7 ± 1.1 0.194 0.705 0.334
R2 1.7 ± 0.9 1.7 ± 0.9 2.3 ± 1.6 1 0.131 0.206
Number of artifacts R1 5 6 8 0.564 0.180 0.317
R2 4 5 5 0.655 0.655 1
Artifacts influencing diagnostic evaluation R1 1.3 ± 0.9 1.6 ± 1.1 1.4 ± 1.0 0.414 0.317 0.705
R2 1.2 ± 0.6 1.5 ± 1.1 1.3 ± 0.9 0.180 0.317 0.317
Artifacts influencing IQ R1 1.8 ± 1.2 2.2 ± 1.3 2 ± 0.8 0.336 0.414 0.739
R2 1.6 ± 1.0 1.8 ± 1.0 1.7 ± 1.1 0.414 0.705 0.739
Diagnostic (yes/no) R1 10/0 9/1 10/0 0.317 1 0.317 9/1 9/1 9/1 1 1 1
R2 10/0 10/0 10/0 1 1 1 10/0 10/0 10/0 1 1 1

Abbreviations: T2W-TSE, T2-weighted turbo spin echo; DWI, diffusion weighted images; 18CH, 18-channel body phased-array receive coil setup; 30CH, 30-channel body phased-array receive coil setup; 60CH, 60-channel body phased-array receive coil setup; R1, reader 1; R2, reader 2; IQ, image quality.