Table 1 –
Lesion detection rate, accuracy and measurement precision for 3 independent board-certified radiologists using either conventional or compressed sensing T2 SPACE for IAC screening protocols.
| Rater | Lesion detectiona | Accuracy | Lesion size measurement (mm)b | |||
|---|---|---|---|---|---|---|
| SPACE | CS SPACE | SPACE | CS SPACE | SPACE | CS SPACE | |
| 1 | 26.7% (20/75)c | 26.3% (20/76) | 100% (75/75) | 100% (76/76) | 13.8 ± 7.6 | 13.1 ± 7.2d |
| 2 | 26.3% (20/76) | 26.3% (20/76) | 100% (76/76) | 100% (76/76) | 12.9 ± 7.3 | 13.1 ± 7.0 |
| 3 | 26.3% (20/76) | 25.0% (19/76) | 100% (76/76) | 98.7% (75/76) | 13.8 ± 6.7 | 14.3 ± 7.4 |
a
Reference standard was the postcontrast T1-weighted MRI (unavailable to radiologist raters at time of review).
b
The maximum dimension of detected lesions in the axial plane measured by individual raters.
c
Missing datapoint (note, there were 455 total assessments for lesion detection).
d
P = 0.048 using paired-sample Wilcoxon signed rank test, whereas measurements from raters 2 and 3 demonstrated no difference between the two sequences.