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| Issue | Challenges |
|---|---|
| Spatial resolution | Evaluation of small distal coronary arteries and branches; assessment of calcified plaques and degree of stenosis (blooming); evaluation of intra-stent lumen; analysis of plaque characteristics (area, volume, attenuation) |
| Temporal resolution | Cardiac motion artifacts; high heart rate; arrhythmias |
| Contrast resolution | Intracoronary opacification; coronary plaque imaging |
CCT, cardiac computed tomography.
