Table 1 Vascular Imaging Quality Score (VIQS) rubric
0 | 1 | 2 | 3 | |
|---|---|---|---|---|
Right coronary artery (RCA) | Ostium not seen | RCA ostium clear but rest is not | RCA imaged to acute margin | RCA imaged clearly to the inferior cardiac surface |
Left coronary artery (LCA) | Ostium not seen | LCA ostium clear but rest is not | LCA bifurcation clear | LAD seen along anterior interventricular groove; LCx seen in posterior AV groove |
Pulmonary arteries (PAs) | Branch PAs not clearly defined | RPA & LPA seen | Able to identify RUPA, RLPA, LUPA, LLPA | Able to identify branches off of at least 2 of RUPA, RLPA, LUPA, LLPA |
Pulmonary veins | No vein insertion to LA identifiable | 2 or more vein insertions clear | All 4 vein insertions clear | All 4 veins clearly seen branching |
Blood pool homogeneity | Heterogeneity in a majority of structures | Heterogeneity in multiple chambers/vessels (e.g. LA and LV) | Heterogeneity in single chamber/vessel (e.g. LA) | Homogeneous blood pool |
Metal artifact | Artifact >300 % of expected metal object diameter | Artifact >200 % of expected metal object diameter | Artifact >110 % of expected metal object diameter, or asymmetric | Artifact ≤110 % of expected metal object diameter |