A system for tissue characterization and quantification of calcium regions in intravascular ultrasound

E. Santos Filho, Y. Saijo, T. Yambe, A. Tanaka, T. Iwamoto, S. Li, M. Yoshizawa

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

1 Citation (Scopus)

Abstract

This paper presents a combination of signal processing and image processing techniques for automatic segmentation and characterization of intravascular ultrasound images. This system is comprised of two modules, the tissue characterization module and the calcium quantification module. The tissue characterization module is based on classification of RF signal performed by a self-organizing map (SOM) previously trained. The calcium quantification module, using the image generated by the envelop of the RF signal, performs an adaptive thresholding based on the Otsu's method. The thresholding process is followed by the analysis of the acoustic shadow regime of the input image which permits to distinguish calcification regions from other small bright regions that, usually, still remain in the image after the thresholding processing.

Original languageEnglish
Title of host publication2006 IEEE International Ultrasonics Symposium, IUS
Pages1294-1297
Number of pages4
DOIs
Publication statusPublished - 2006 Dec 1

Publication series

NameProceedings - IEEE Ultrasonics Symposium
Volume1
ISSN (Print)1051-0117

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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    Santos Filho, E., Saijo, Y., Yambe, T., Tanaka, A., Iwamoto, T., Li, S., & Yoshizawa, M. (2006). A system for tissue characterization and quantification of calcium regions in intravascular ultrasound. In 2006 IEEE International Ultrasonics Symposium, IUS (pp. 1294-1297). [4152189] (Proceedings - IEEE Ultrasonics Symposium; Vol. 1). https://doi.org/10.1109/ULTSYM.2006.333