Fig. 1

CONSORT flow chart of enrollment. CTO, chronic total occlusion; DCB, drug-coated balloon; DS, diameter stenosis; SR, optimal DCB result; PCI, percutaneous coronary intervention; Non-SR, non-optimal DCB result.

CONSORT flow chart of enrollment. CTO, chronic total occlusion; DCB, drug-coated balloon; DS, diameter stenosis; SR, optimal DCB result; PCI, percutaneous coronary intervention; Non-SR, non-optimal DCB result.