Association of vessel fractional flow reserve (vFFR) with luminal obstruction and plaque characteristics as detected by optical coherence tomography (OCT) in patients with NSTE-ACS: the FAST OCT study

2024

Association of vFFR with Plaque Characteristics in NSTE-ACS Patients

Sample size: 200 publication Evidence: moderate

Author Information

Author(s): Ziedses des Plantes Annemieke C, Scoccia Alessandra, Groenland Frederik T W, Tovar Forero Maria N, Tomaniak Mariusz, Kochman Janusz, Wojakowski Wojciech, Roleder-Dylewska Magda, Ameloot Koen, Adriaenssens Tom, den Dekker Wijnand K, Nuis Rutger-Jan, Kardys Isabella, Van Mieghem Nicolas M, Spitzer Ernest, Daemen Joost

Primary Institution: Erasmus University Medical Center, Rotterdam, The Netherlands

Hypothesis

The study aims to define the association between vFFR and OCT findings in patients with NSTE-ACS.

Conclusion

vFFR is significantly associated with OCT-detected minimal lumen area (MLA) in patients with NSTE-ACS.

Supporting Evidence

vFFR showed a significant association with MLA, indicating its potential utility in assessing coronary artery lesions.
vFFR ≤ 0.80 had a high specificity of 92.5% for predicting MLA ≤ 2.5 mm².
Discrepancies between OCT and vFFR findings occurred in approximately one out of four assessed lesions.
vFFR demonstrated a moderate to poor diagnostic performance in detecting plaque instability.
High-risk lesions were prevalent in vFFR-negative cases, suggesting the need for further evaluation.
Routine OCT evaluation may improve outcomes by identifying vulnerable plaques.
The study highlights the limitations of vFFR in assessing intermediate coronary artery lesions.

Takeaway

Doctors used special imaging to see how blocked heart arteries are in patients with chest pain, and they found that a certain measurement can help predict serious problems.

Methodology

The FAST OCT study was a prospective, multicenter, single-arm study evaluating the association between vFFR and OCT findings in patients with NSTE-ACS.