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Table 2 Image quality scoring system for contrast between blood pool and balloon of the wedge catheter

From: Improved passive catheter tracking with positive contrast for CMR-guided cardiac catheterization using partial saturation (pSAT)

Score Description
1 Poor. Impossible to differentiate balloon and blood pool.
2 Low. Differentiation of blood and balloon difficult to perform.
3 Intermediate. Adequate signal disparity.
4 Good. Differentiation of blood and balloon easily performed.
5 Excellent. Excellent contrast between blood and balloon