Table 4 Likert-type scoring of device visibility and confidence in catheter and guidewire position. Only catheter shaft visibility reached statistical significance (p = 0.001)
Imaging test | Guidewire low-SAR spiral GRE | No guidewire normal-SAR rectilinear bSSFP |
|---|---|---|
Tip visibility of balloon catheter with saturation pre-pulse(scale 0–3) | 3.0 ± 0.2 | 2.9 ± 0.3 |
Shaft visibility of balloon catheter (scale 0–3) | 1.1 ± 1.2 | 0.0 ± 0.0 |
Confidence that balloon catheter tip is at the intended location (scale 0–2) | 2.0 ± 0.0 | 2.0 ± 0.0 |
Tip visibility of guidewire (scale 0–3) | 0.5 ± 0.8 | N/A |
Shaft visibility of guidewire (scale 0–3) | 1.6 ± 1.1 | N/A |
Confidence that guidewire tip is at the intended location (scale 0–2) | 0.4 ± 0.6 | N/A |