Table 1 Number of studies assessing each imaging method, according to study design and reference standard
MRI only | CT only | MRI and CT | Total | |
|---|---|---|---|---|
Study Design | ||||
Prospective cohort | 4 | 14 | 2 | 20 |
Retrospective cohort | 1 | 4 | 1 | 6 |
Case-control | 7 | 4 | 1 | 12 |
Reference standard | ||||
Autopsy | 1 | 6 | 0 | 7 |
Non-autopsy | 11 | 16 | 4 | 31 |
Total | 12 | 22 | 4 | 38 |