TABLE 1.
Summary of reviewed published literature of CT colonography by calculation of median test properties* across five target organ sites, stratified by screening and non-screening populations, through 2010.
| Target organ | No. of studies | False positive rate (per 100) | Prevalence (per 1000) | Positive Predictive Value (per 100) |
|---|---|---|---|---|
| Renal | ||||
| Screening | 6 | 1.0 | 0.6 | 1.5 |
| Non-screening | 13 | 1.0 | 4.2 | 25.0 |
| Mixed/Unknown | 3 | - | - | - |
| Overall | 22 | 1.1 | 2.2 | 20.5 |
| Lung | ||||
| Screening | 6 | 0.2 | 0.1 | 20.0 |
| Non-screening | 6 | 0.7 | 0.7 | 0 |
| Mixed/Unknown | 3 | - | - | - |
| Overall | 15 | 0.7 | 0.1 | 3.8 |
| Liver | ||||
| Screening | 4 | 0 | 1.2 | 0 |
| Non-screening | 8 | 1.8 | 0 | 0 |
| Mixed/Unknown | 2 | - | - | - |
| Overall | 14 | 1.3 | 0 | 0 |
| Pancreas | ||||
| Screening | 2 | 0.1 | 0 | 0 |
| Non-screening | 5 | 1.4 | 1.2 | 25.0 |
| Mixed/Unknown | 1 | - | - | - |
| Overall | 8 | 0.5 | 0.5 | 0 |
| Ovary | ||||
| Screening | 5 | 1.5 | 0 | 0 |
| Non-screening | 9 | 3.7 | 0 | 10.0 |
| Mixed/Unknown | 1 | - | - | - |
| Overall | 15 | 2.5 | 0 | 0 |
*
Summarized across studies with available data for the calculation.
- cannot be calculated due to missing data on the number of true positive results.