Coronary plaque classification through intravascular ultrasound radiofrequency data analysis using self-organizing map

Takahiro Iwamoto, Akira Tanaka, Yoshifumi Saijo, Makoto Yoshizawa

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

Intravascular ultrasound (IVUS) is an important clinical tool in the assessment of atherosclerotic plaque in coronary artery diseases. Using IVUS, we can obtain high resolution echo image of cross-sections of the coronary artery. However, it is difficult to accurately classify plaques by using the echogram only. We propose a method of IVUS Radiofrequency (RF) signal classification using self-organizing map (SOM). Characteristic ROIs (region of interest) of the IVUS echogram of patients with coronary lesions were selected by an expert medical doctor, and the SOM learned from these ROIs. The SOM could classify the RF signals with accuracies of 95.9% for fibrous plaque, 99.5% for blood, 96.2% for calcified plaque and 16.3% for media regions. This result suggests that the proposed technique is useful for automatic characterization of plaque in coronary artery.

Original languageEnglish
Title of host publication2005 IEEE Ultrasonics Symposium
Pages2054-2057
Number of pages4
DOIs
Publication statusPublished - 2005 Dec 1
Event2005 IEEE Ultrasonics Symposium - Rotterdam, Netherlands
Duration: 2005 Sep 182005 Sep 21

Publication series

NameProceedings - IEEE Ultrasonics Symposium
Volume4
ISSN (Print)1051-0117

Other

Other2005 IEEE Ultrasonics Symposium
CountryNetherlands
CityRotterdam
Period05/9/1805/9/21

Keywords

  • Intravascular ultrasound
  • Self organizing map
  • Spectrum analysis
  • Tissue characterization

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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    Iwamoto, T., Tanaka, A., Saijo, Y., & Yoshizawa, M. (2005). Coronary plaque classification through intravascular ultrasound radiofrequency data analysis using self-organizing map. In 2005 IEEE Ultrasonics Symposium (pp. 2054-2057). [1603283] (Proceedings - IEEE Ultrasonics Symposium; Vol. 4). https://doi.org/10.1109/ULTSYM.2005.1603283