The study is a prospective cohort study conducted in Tianjin Chest Hospital, Tianjin city, China. Patients with SVGD referred for PCI are invited to participate in the study and VH-IVUS is performed in culprit SVG before and after PCI. Patients are recruited consecutively by surgeons at the Cardiology Department of Tianjin Chest Hospital. These subjects will be followed up at 1, 6, 12, 24 and 36 months post-PCI to assess clinical outcomes. The flow diagram of the study and the detailed study procedures are illustrated in Fig. 1.
Study flow chart
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