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Updated: Aug 13, 2025

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OCT utilization: Summary statistics from the LightLab clinical initiative.

Aishwarya Raja1,2, Eric A Osborn1, Brian A Bergmark3

  • 1Harvard Medical School, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA.

Catheterization and Cardiovascular Interventions : Official Journal of the Society for Cardiac Angiography & Interventions
|January 20, 2023
PubMed
Summary

A standardized LightLab (LL) workflow improved optical coherence tomography (OCT) adoption and performance in percutaneous coronary intervention (PCI). Physicians experienced increased efficiency and better image quality with this enhanced OCT imaging approach.

Keywords:
efficiencyoptical coherence tomography (OCT)workflow

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Area of Science:

  • Cardiovascular medicine
  • Medical imaging technology
  • Interventional cardiology

Background:

  • Percutaneous coronary intervention (PCI) outcomes can be improved with advanced imaging guidance.
  • Optical coherence tomography (OCT) offers detailed visualization of coronary anatomy and pathology.
  • Standardizing OCT use may enhance its clinical integration and impact.

Purpose of the Study:

  • To evaluate the impact of a standardized LightLab (LL) workflow on physician efficiency, decision-making, and OCT image quality during PCI.
  • To assess the adoption and performance trends of OCT following the implementation of a structured LL protocol.

Main Methods:

  • A multicenter, prospective, observational study involving 48 physicians across 17 U.S. centers.
  • Collected data on 401 OCT-guided PCIs during a baseline phase and 1898 during LL workflow phases.
  • The LL workflow involved assessing plaque morphology, lesion length, and vessel diameter, and optimizing treatment for dissection, mal-apposition, and under-expansion (MLD MAX).

Main Results:

  • LL workflow utilization increased significantly post-implementation (68% vs. 41% at baseline).
  • OCT was increasingly used in more complex procedures, both pre- and post-PCI (87% vs. 52% and 55% vs. 37%, respectively).
  • OCT image quality improved (over 95% usable), and interpretation time decreased significantly (pre-PCI: 4.6 vs. 7.5 min; post-PCI: 2.9 vs. 5.3 min).

Conclusions:

  • A standardized OCT-guided workflow led to greater adoption of OCT imaging.
  • The standardized workflow facilitated incorporation of OCT in more complex PCI cases.
  • Procedural efficiency and OCT image quality were enhanced by the standardized workflow.