A consistent tissue attenuation coefficient estimator using bubble harmonic echoes
作者： Sheng-Kai Tsao , Jenho Tsao
关键词:
摘要: The ultrasonic property of soft tissue can be quantified by its attenuation coefficient α. Traditionally the backscattering signal is used to estimate To improve precision, a large number spatially independent samples echoes are required for averaging. In this paper, we propose new estimation method, which makes use microbubbles provide temporally It easier temporal sampling maintain ergodicity and statistical A stochastic model harmonic signals an ideal bubble attenuated derived based on Kuc's Miller's works. An estimator α then presented. This consistent could biased because unknown squarelaw relation between second fundamental harmonics non-ideal oscillation. experimental works, design simplified phantom demonstrating performance proposed estimator. shown that both first consistently. However, interference may cause additional error using harmonic.
sci-hub.se 参考文章(29)
Gabriele Guidi, Vernon L. Newhouse, Piero Tortoli, Doppler spectrum shape analysis based on the summation of flow-line spectra IEEE Transactions on Ultrasonics Ferroelectrics and Frequency Control. ,vol. 42, pp. 907- 915 ,(1995) , 10.1109/58.464827
Lars Hoff, Acoustic properties of ultrasonic contrast agents Ultrasonics. ,vol. 34, pp. 591- 593 ,(1996) , 10.1016/0041-624X(96)00035-2
R. Kuc, Estimating acoustic attenuation from reflected ultrasound signals: Comparison of spectral-shift and spectral-difference approaches IEEE Transactions on Acoustics, Speech, and Signal Processing. ,vol. 32, pp. 1- 6 ,(1984) , 10.1109/TASSP.1984.1164282
B. Zhao, O.A. Basir, G.S. Mittal, Estimation of ultrasound attenuation and dispersion using short time Fourier transform Ultrasonics. ,vol. 43, pp. 375- 381 ,(2005) , 10.1016/J.ULTRAS.2004.08.001
L.S. Wilson, M.L. Neale, H.E. Talhami, M. Appleberg, Preliminary results from attenuation-slope mapping of plaque using intravascular ultrasound. Ultrasound in Medicine and Biology. ,vol. 20, pp. 529- 542 ,(1994) , 10.1016/0301-5629(94)90089-2
William T Shi, Flemming Forsberg, Ultrasonic characterization of the nonlinear properties of contrast microbubbles. Ultrasound in Medicine and Biology. ,vol. 26, pp. 93- 104 ,(2000) , 10.1016/S0301-5629(99)00117-9
Tomy Varghese, Jonathan Ophir, Characterization of Elastographic Noise Using the Envelope of Echo Signals Ultrasound in Medicine and Biology. ,vol. 24, pp. 543- 555 ,(1998) , 10.1016/S0301-5629(98)00008-8
Kevin J. Parker, Robert C. Waag, Measurement of Ultrasonic Attenuation Within Regions Selected from B-Scan Images IEEE Transactions on Biomedical Engineering. ,vol. 30, pp. 431- 437 ,(1983) , 10.1109/TBME.1983.325148
E. Walach, A. Shmulewitz, Y. Itzchak, Z. Heyman, Local tissue attenuation images based on pulsed-echo ultrasound scans IEEE Transactions on Biomedical Engineering. ,vol. 36, pp. 211- 221 ,(1989) , 10.1109/10.16468
Hairong Shi, Tomy Varghese, Carol C. Mitchell, Matthew McCormick, Robert J. Dempsey, Mark A. Kliewer, In vivo attenuation and equivalent scatterer size parameters for atherosclerotic carotid plaque: Preliminary results Ultrasonics. ,vol. 49, pp. 779- 785 ,(2009) , 10.1016/J.ULTRAS.2009.06.004