From: Biodegradable magnesium Herbert screw – image quality and artifacts with radiography, CT and MRI
Imaging modality | Mg: mean artifact size [mm] | Ti: mean artifact size [mm] | Mean difference in artifact size [mm] | T-value | P-value |
---|---|---|---|---|---|
DX | 0a | 3.9 ± 0.3 | 3.9 ± 0.2 | 21.0 | <0.001 |
MDCT | |||||
0° | 0a | 14.1 ± 1.2 | 14.1 ± 1.2 | 45.5 | <0.001 |
90° | 0a | 19.7 ± 1.4 | 19.7 ± 1.4 | 54.5 | <0.001 |
FPCT | |||||
0° | 5.7 ± 0.3 | 14.1 ± 0.7 | 8.5 ± 0.2 | 45.1 | <0.001 |
90° | 6.9 ± 0.4 | 27.0 ± 2.4 | 20.1 ± 0.6 | 32.0 | <0.001 |
1.5 T | |||||
PDw TSE (FS) 0° | 4.6 ± 0.5 | 6.2 ± 0.2 | 1.6 ± 0.1 | 12.0 | <0.001 |
90° | 7.8 ± 0.3 | 12.1 ± 0.1 | 4.3 ± 0.1 | 53.7 | <0.001 |
1.5 T | |||||
T1w TSE | |||||
0° | 3.5 ± 0.4 | 5.3 ± 0.2 | 1.8 ± 0.1 | 15.6 | <0.001 |
90° | 4.7 ± 0.2 | 9.0 ± 0.2 | 4.3 ± 0.1 | 58.9 | <0.001 |
3 T | |||||
PDw TSE (FS) | |||||
0° | 4.7 ± 0.4 | 8.6 ± 0.2 | 3.9 ± 0.1 | 33.8 | <0.001 |
90° | 8.4 ± 0.2 | 15.4 ± 0.3 | 7.0 ± 0.1 | 75.2 | <0.001 |
3 T | |||||
T1w TSE | |||||
0° | 4.5 ± 0.3 | 8.2 ± 0.2 | 3.7 ± 0.1 | 39.7 | <0.001 |
90° | 6.7 ± 0.2 | 10.3 ± 0.4 | 3.6 ± 0.1 | 31.2 | <0.001 |
3 T | |||||
PDw TSE WARP (FS) | |||||
0° | 4.7 ± 0.3 | 8.5 ± 0.2 | 3.8 ± 0.1 | 40.8 | <0.001 |
90° | 8.3 ± 0.2 | 13.4 ± 0.5 | 5.1 ± 0.1 | 36.7 | <0.001 |