Table 2
Comparison between reports of lines with or without contrast
| No contrast | Contrast | |
|---|---|---|
| Values are number of reports (range of reported percentages). Three reports (one from each observer) were obtained for each radiograph. Reported positions are different between non-contrast and contrast groups (p = 0.0002). | ||
| Number of reports | 318 | 288 |
| Positions reported | ||
| Distal vein | 50 (13–19%) | 68 (22–25%) |
| Iliac | 25 (6–11%) | 33 (9–14%) |
| Superior or inferior vena cava | 105 (30–36%) | 103 (30–40%) |
| Atrium | 80 (22–30%) | 62 (19–24%) |
| Ventricle | 21 (4–11%) | 6 (0–4%) |
| Other | 37 (7–17%) | 16 (2–7%) |
