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Intravascular Ultrasound Image-Based Finite Element Modeling Approach for Quantifying In Vivo Mechanical Properties of Human Coronary Artery
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Coronary plaque characteristics that indicate distal embolization during percutaneous coronary intervention in

Fumitaka Inoue1, Kazuhiro Ueshima, Takatomi Fujimoto

  • 1Department of Cardiology, Nara Prefectural Nara Hospital, 1-30-1 Hiramatsu, Nara, Nara, 631-0846, Japan. inoue-f.2011@hi2.enjoy.ne.jp

Cardiovascular Intervention and Therapeutics
|February 6, 2013
PubMed

Insights

High fibro-fatty plaque content, identified by virtual histology intravascular ultrasound, predicts distal embolization during percutaneous coronary intervention in stable angina patients.

Area of Science:

  • Cardiology
  • Interventional Cardiology
  • Medical Imaging

Background:

  • Distal embolization (DE) is a significant complication of percutaneous coronary intervention (PCI).
  • Identifying predictors of DE is crucial for patient safety during PCI, especially in stable angina patients.
  • Virtual histology intravascular ultrasound (VH-IVUS) offers detailed plaque characterization.

Purpose of the Study:

  • To evaluate coronary plaque characteristics associated with DE during PCI in stable angina patients.
  • To determine if VH-IVUS can predict DE events.
  • To identify specific plaque compositions linked to DE risk.

Main Methods:

  • A cohort of 364 stable angina patients undergoing PCI was studied.
  • Patients were categorized into those with DE (n=10) and without DE (n=354).
  • Coronary plaque composition was analyzed using VH-IVUS.

Main Results:

  • The fibro-fatty (FF) ratio was significantly higher in the DE group (28% ± 17%) compared to the non-DE group (11% ± 9%).
  • An FF ratio of 20% was identified as the optimal cutoff for predicting DE, with 80% sensitivity and 81% specificity.
  • A high FF ratio demonstrated a strong association with DE (odds ratio: 17.1).

Conclusions:

  • Coronary plaques with a high fibro-fatty ratio are a significant predictor of distal embolization during PCI.
  • VH-IVUS assessment of plaque composition, specifically the FF ratio, can aid in stratifying DE risk.
  • These findings may help refine PCI strategies to mitigate DE complications in stable angina patients.

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