Table 5.
Subjective analysis of artifact reduction and presence of new artifacts at CIED leads. Data is reported as median with 10/90 percentile. CI, conventional images; VMI, virtual monoenergetic images; MAR, metal artifact reduction algorithm; VMIMAR, combination of MAR and VMI; ICC, intraclass correlation coefficient. Bold indicates significant changes in scores compared to CI
| Artifact extent | Diagnostic assessment of surrounding tissue | ||
|---|---|---|---|
| Hypodense | Hyperdense | ||
| CI | 3 (3–4) | 2 (2–3) | 2 (2–3) |
| VMI | |||
| 100 keV | 3 (3–4) | 3 (2–4) | 3 (2–3) |
| 140 keV | 3 (3–4) | 3 (2–4) | 2 (1–4) |
| 200 keV | 3 (3–4) | 3 (3–4) | 1 (1–4) |
| MAR | 4 (3–5) | 3 (2–4) | 3 (2–4) |
| VMIMAR | |||
| 100 keV | 4 (3–5) | 4 (3–4) | 3 (2–4) |
| 140 keV | 4 (3–5) | 4 (3–5) | 2 (1–4) |
| 200 keV | 4 (3–5) | 4 (3–5) | 1 (1–4) |
| p value | |||
| CI vs. VMI 100 keV | > 0.05 | < 0.05 | < 0.05 |
| CI vs. VMI 140 keV | > 0.05 | < 0.05 | < 0.05 |
| CI vs. VMI 200 keV | > 0.05 | < 0.05 | < 0.05 |
| CI vs. MAR | < 0.05 | < 0.05 | < 0.05 |
| CI vs. VMIMAR 100–200 keV | < 0.05 | < 0.05 | < 0.05 |