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Figure 3


Fig. 3 —Graph shows right ventricular-myocardial contrast-to-noise ratio (CNR) profile along z-axis with each protocol. Profile obtained with protocol A shows more constant level, whereas profiles obtained with protocols B and C show decrease at caudal levels in right ventricle. Circular regions of interest (ROIs) were placed in right ventricular cavity and septal myocardial wall from most cranial (ROI 1) to most caudal (ROI 6) position in each patient.