BACKGROUND: Stent under-expansion and procedurally related abnormal lesion morphologies (e.g. dissection, thrombus) are associated with stent restenosis and acute, subacute and chronic thrombosis.

• 背景：支架扩张不充分以及与操作相关的异常病变形态是支架内再狭窄以及急性、亚急性和慢性支架内血栓形成的重要原因。