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Intravascular Ultrasound for Plaque Characterization

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Intravascular Ultrasound for Plaque Characterization. Scott R. Smith ... Intravascular Ultrasound currently widely used for intravascular imaging ... – PowerPoint PPT presentation

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Title: Intravascular Ultrasound for Plaque Characterization


1
Intravascular Ultrasound for Plaque
Characterization
  • Scott R. Smith
  • Boston Scientific Corporation
  • The 3rd Vulnerable Plaque Symposium
  • March 16, 2002

2
Who needs interventional diagnosis and treatment?
Summary of National Heart, Lung, and Blood
Institute Workshop on Cardiovascular Risk
Assessment
3
Diagnosis of Vulnerable Plaqueselecting a
population
Total 100 at risk 10 treated
14 saved 9 unnecessary 5 missed 1
4
Plaque Structure
Courtesy of Dr. Renu Virmani Armed Forces
Institute of Pathology
5
IVUS Plaque Imaging
Ruptured plaque
6
Boston Scientific Imaging Systems
Atlantis? SR Plus Catheter
Galaxy? IVUS System
  • Features Intended Benefits
  • Tapered tip 2.5 Fr. Crossing Profile
  • High definition 40MHz IVUS catheter.
  • 6F Guide Catheter Compatibility.

7
Galaxy? System Features and Intended Benefits
  • Time-Saving Features
  • Image Bookmarking
  • LongView longitudinal measurements
  • Pullback sled
  • Enhanced Ease of Use
  • TraceAssist automatic lumen trace function
  • Angiographic compatibility
  • Push button control

8
Galaxy? System Research Capabilities
  • Expanded Functionality
  • Digital image storage
  • Patient database
  • Pre/post intervention analysis.
  • RF Output
  • Direct Access to RF signal for acquisition and
    analysis
  • Future plans may include direct RF signal
    acquisition

9
Imaging vs. Analysis
RF
Rectified and Log compressed
Low passed filtered - 10MHz
One image vector
10
Other Imaging Modalities
  • Independence
  • Spatial resolution
  • Contrast

11
Conclusion
  • Intravascular Ultrasound currently widely used
    for intravascular imaging
  • Broad potential for plaque volume measurement and
    tissue characterization
  • Variety of research efforts aimed at improving
    tissue contrast and resolution
  • Thanks to
  • Tat Jin Teo, PhD - BSC Imaging
  • Renu Virmani, MD - AFIP
  • Jay Kokate, PhD - BSC Applied Research
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