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Illustration for contemporary SPM technique.
(A): The traditional SPM technique. The guidewire crosses into the subintimal space and angioplasty with a small balloon is performed. The SPM length range was limited. (B): The contemporary SPM technique. ADR was based on the Stingray balloon and extensive guiding catheter. This SPM technique was more aggressive, with a larger balloon size and longer SPM length range. ADR: antegrade dissection and re-entry; SPM: subintimal plaque modification.
