New performance metrics for ultrasound pulse compression systems

In medical ultrasound, B-mode images are log-compressed and displayed with a grayscale map, typically on a 40-60 dB dynamic range. The image formation process is the same for an ultrasound pulse compression system using coded excitation. Metrics, such as full width at half maximum (FWHM), peak sidel...

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Bibliographic Details
Published in2014 IEEE International Ultrasonics Symposium pp. 440 - 443
Main Authors Harput, Sevan, McLaughlan, James, Cowell, David M. J., Freear, Steven
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.09.2014
Subjects
Acoustics
Dynamic range
Harmonic analysis
Image resolution
Imaging
Ultrasonic imaging
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Summary:In medical ultrasound, B-mode images are log-compressed and displayed with a grayscale map, typically on a 40-60 dB dynamic range. The image formation process is the same for an ultrasound pulse compression system using coded excitation. Metrics, such as full width at half maximum (FWHM), peak sidelobe level (PSL) and integrated sidelobe level (ISL), used to evaluate pulse compression systems were adopted from radar and communications. These metrics are utilized to evaluate the performance of an auto-correlation function, which is the ideal case. In medical ultrasound imaging however, the combination of frequency and depth dependent attenuation, dispersion, harmonic generation, beamforming errors, and limited transducer bandwidth create a more complicated case for a pulse compressed system that is far from the ideal.
ISSN:1051-0117
DOI:10.1109/ULTSYM.2014.0109