1. Factors That Influence Measurements and Accurate Evaluation of Stent Apposition by Optical Coherence Tomography

    Factors That Influence Measurements and Accurate Evaluation of Stent Apposition by Optical Coherence Tomography
    kground: Factors influencing measurements and accurate evaluation of stent apposition by optical coherence tomography (OCT) are not established. Methods and Results: Phantom models of known luminal sizes and lengths were evaluated by OCT under various conditions and measurements were compared with actual values. Stents implanted into phantom models were examined by OCT to validate the measurement point on the stent strut surface for accurate evaluation of stent apposition. Strut thickness was measured at 3 points (midpoint, inner and outer surfaces of the stent shadow). The precision of OCT measurements of lumen diameter and area was satisfactory when the image wire ...
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