Segmental post-percutaneous coronary intervention physiological gradients using ultrasonic or optical flow ratio: insights from ASET JAPAN study.

ABSTRACT:

Aims

Segmental pressure gradients post-percutaneous coronary intervention (PCI) can detect residual disease and optimization targets. Ultrasonic flow ratio (UFR) or optical flow ratio (OFR) offer simultaneous physiological and morphological assessment using a single imaging catheter. This study evaluated the utility of UFR and OFR in identifying residual disease post-PCI.

Methods and results

The study include patients from the Acetyl Salicylic Elimination Trial JAPAN Pilot study with complete intravascular imaging pullback data, where UFR or OFR was obtained post-PCI. Anatomical focal lesions distal and proximal to the stent were analysed in segments ≥5 mm long. UFR or OFR virtual pullback curves assessed intra-stent pressure gradients, defining physiological focal or diffus

SUBMITTER: Revaiah PC 

PROVIDER: S-EPMC11837184 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature