Improved color flow mapping using the wideband maximum likelihood estimator

K. W. Ferrara, V. R. Algazi

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

2 Scopus citations

Abstract

The use of the wideband maximum likelihood estimator (MLE) is shown to improve the color flow mapping of the blood velocity profile. Using a transmitted signal with a significant fractional bandwidth, it is shown that the wideband MLE improves the quality of the color flow estimate and simultaneously allows an increase in the frame rate. It is the improved global accuracy of the estimate, with the use of a new signaling scheme, that allows an increase in the frame rate of the display. The signaling scheme interleaves transmission of pulses in two or three directories. This interleaving, with nonperiodic transmission, reduces the total number of pulses required to achieve a fixed level of local and global accuracy. To study the overall estimator performance, the authors evaluate the expected estimator output and demonstrate that the width of the mainlobe and height of subsidiary peaks are reduced through the use of this estimator and signaling scheme.

Original languageEnglish (US)
Title of host publicationUltrasonics Symposium Proceedings
PublisherPubl by IEEE
Pages1517-1521
Number of pages5
Volume3
Publication statusPublished - 1990
EventProceedings of the IEEE 1990 Ultrasonics Symposium - Honolulu, HI, USA
Duration: Dec 4 1990Dec 7 1990

Other

OtherProceedings of the IEEE 1990 Ultrasonics Symposium
CityHonolulu, HI, USA
Period12/4/9012/7/90

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ASJC Scopus subject areas

  • Engineering(all)

Cite this

Ferrara, K. W., & Algazi, V. R. (1990). Improved color flow mapping using the wideband maximum likelihood estimator. In Ultrasonics Symposium Proceedings (Vol. 3, pp. 1517-1521). Publ by IEEE.