Evaluation of Left Main Coronary Artery Using Optical Frequency Domain Imaging and Its Pitfalls

Figure 2

Optical frequency domain imaging examples of artifacts: quadrants out of the field of view (white arrow) (a), incomplete blood displacement by iodine contrast producing volute (white arrow) with high attenuation of optical signal (b), sew-up artifact (c) (white arrow), and artifact related to eccentric wire position causing elliptical image and signal attenuation (d) (white arrows).

(a)

(b)

(c)

(d)