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Figure 10b. Streak artifacts. (a) On an image obtained after the administration of saline solution, no streak artifacts are observed around the RCA because attenuation of the right atrial appendage is lowered. (b) On an image obtained in a different patient without the administration of saline solution, streak artifacts produced by high-attenuation contrast material at the right atrial appendage (arrow) affect the visibility of the proximal RCA.
