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Introduction: Radiographic visualization of vascular scaffolds provides potential advantages during
initial deployment and follow-up assessments. However, bioresorbable scaffolds are
typically not constructed from radiopaque materials and image interpretation is often
complicated by adjacent vascular calcifications and iodinated intravascular contrast.
One strategy to achieve fluoroscopic and CT-based visualization of bioresorbable polymeric
scaffolds is to dope them with radiopaque additives. Gadolinium (Gd) and iodine (I)
are potentially useful radiopaque dopants for polymeric bioresorbable scaffolds due
to their established biocompatibility. Gadolinium offers an additional potential advantage
with differential attenuation properties than calcium and iodine.
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