2.2. PCI Procedure
stenosis
STENOSIS
A radial artery approach was used in all patients. All stents were second-generationdrug-eluting stents and all the DCBs were SeQuent® Please (B. Braun, Melsungen, Germany). The size of semicompliant balloon, noncompliant (NC) balloon, cutting balloon, DCB, and stent was determined by the operator. The DCB was inflated within 120 s of entry into the body and inflated for 30–60 s. According to the current requirements, before DCB release, the following needs to be met: residual stenosis not greater than 30%, and no flow-limiting dissection (the processing strategy pattern diagram for different groups is shown in 