Related Experiment Video

Updated: Oct 15, 2025

Ablation of Ischemic Ventricular Tachycardia Using a Multipolar Catheter and 3-dimensional Mapping System for High-density Electro-anatomical Reconstruction
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Ablation of Ischemic Ventricular Tachycardia Using a Multipolar Catheter and 3-dimensional Mapping System for High-density Electro-anatomical Reconstruction

Published on: January 31, 2019

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Hazy lesion in a ventricular tachycardia patient: stents or drugs?

Demin Liu1, Xiaoxue Jin1, Guoqiang Gu2

  • 1Department of Cardiology, Second Hospital of Hebei Medical University, Shijiazhuang, 050000, Hebei, People's Republic of China.

The International Journal of Cardiovascular Imaging
|October 28, 2021
PubMed

Insights

Intravascular ultrasound (IVUS) offers superior guidance for complex percutaneous coronary intervention (PCI) compared to coronary angiography. This case study demonstrates successful PCI optimization using IVUS for a patient with left anterior descending artery stenosis.

Area of Science:

  • Cardiovascular Imaging and Intervention
  • Interventional Cardiology

Background:

  • Coronary artery disease necessitates precise lesion assessment for optimal percutaneous coronary intervention (PCI).
  • Intravascular ultrasound (IVUS) provides detailed cross-sectional imaging of coronary arteries, complementing traditional angiography.
  • Ventricular tachycardia can be a symptom of significant coronary artery disease.

Purpose of the Study:

  • To illustrate the utility of IVUS in guiding and optimizing PCI for complex coronary lesions.
  • To report a successful PCI case where IVUS identified significant stenosis not fully characterized by angiography.

Main Methods:

  • Coronary angiography was performed to initially assess the left anterior descending artery (LAD).
  • Intravascular ultrasound (IVUS) was utilized for detailed lesion characterization, including stenosis severity.
  • Percutaneous coronary intervention (PCI) with a drug-eluting stent was performed based on IVUS findings.

Main Results:

  • Coronary angiography showed a hazy lesion in the proximal LAD.
  • IVUS revealed a significant 73% segment stenosis in the proximal LAD.
  • Successful implantation of a 3.5x21 mm drug-eluting stent resulted in an excellent angiographic outcome.

Conclusions:

  • IVUS is a valuable tool for optimizing complex PCI, providing critical information beyond standard angiography.
  • Accurate assessment with IVUS can lead to improved procedural success and patient outcomes in interventional cardiology.

Keywords:
Coronary angiographyHazy lesionsIVUSPercutaneous coronary intervention

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