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Related Concept Videos

Computed Tomography01:10

Computed Tomography

Tomography refers to imaging by sections. Computed tomography (CT) is a non-invasive imaging technique that uses computers to analyze several cross-sectional X-rays to reveal minute details about structures in the body.
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...

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Related Experiment Video

Updated: Jun 17, 2026

Reduction of Radiation Exposure during Endovascular Treatment of Peripheral Arterial Disease Combining Fiber Optic RealShape Technology and Intravascular Ultrasound
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Reduction of Radiation Exposure during Endovascular Treatment of Peripheral Arterial Disease Combining Fiber Optic RealShape Technology and Intravascular Ultrasound

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[Optical coherence tomography-guided stent implantation].

Mirosław Jabłoński1, Marek Koziński, Marcin Rychter

  • 1Klinika Kardiologii i Chorób Wewnetrznych, Collegium Medicum, Uniwersytet Mikołaja Kopernika w Toruniu, ul. Marii Curie-Skłodowskiej 9, 85-094 Bydgoszcz. mirek87@wp.pl

Kardiologia Polska
|December 18, 2009
PubMed
Summary

Optical coherence tomography (OCT) identified plaque prolapse missed by intravascular ultrasound during coronary angioplasty. Post-dilation resolved the issue, ensuring optimal stent deployment for unstable angina.

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Imaging In-Stent Restenosis: An Inexpensive, Reliable, and Rapid Preclinical Model
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Imaging In-Stent Restenosis: An Inexpensive, Reliable, and Rapid Preclinical Model
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Imaging In-Stent Restenosis: An Inexpensive, Reliable, and Rapid Preclinical Model

Published on: September 14, 2009

Area of Science:

  • Cardiovascular Medicine
  • Interventional Cardiology
  • Medical Imaging

Background:

  • Unstable angina pectoris requires prompt intervention to prevent myocardial infarction.
  • Percutaneous coronary intervention (PCI) with stent implantation is a common treatment modality.
  • Accurate assessment of stent deployment and vessel wall is crucial for procedural success.

Observation:

  • A 51-year-old woman presented with unstable angina and elevated troponin I.
  • Optical coherence tomography (OCT) guided angioplasty of the left anterior descending artery with an everolimus-eluting stent.
  • OCT revealed plaque or thrombus prolapse between stent struts, a finding not visible with intravascular ultrasound (IVUS).

Findings:

  • The visualized plaque prolapse between stent struts was not detected by IVUS.
  • Post-dilation with a larger balloon was performed to address the prolapse.
  • Final OCT imaging confirmed successful stent expansion and apposition, with no residual prolapse.

Implications:

  • OCT provides superior visualization of stent-edge phenomena compared to IVUS.
  • Early detection and management of plaque prolapse can improve PCI outcomes.
  • This case highlights the value of OCT in optimizing complex coronary interventions.