Beamforming for realizing designed point spread function

Proceedings - IEEE Ultrasonics Symposium

Volumn , Issue , 2007, Pages 1557-1562

  Sumi, Chikayoshi ^a  

^a SOPHIA UNIVERSITY   (Japan)

Author keywords

Displacement vecotr measurement; Lateral modulation (LM); Optimization; Point spread function (PSF); Singular value decomposition (SVD); Ultrasound imaging; Weighted minimum norm least squares estimatuions (WMNLSQ)

Indexed keywords

ACOUSTIC WAVES; BEAMFORMING; CURVE FITTING; FUNCTIONS; LAGRANGE MULTIPLIERS; LEAST SQUARES APPROXIMATIONS; MODULATION; OPTICAL DESIGN; OPTICAL TRANSFER FUNCTION; OPTIMIZATION; PROBABILITY DENSITY FUNCTION; SITE SELECTION; ULTRASONIC IMAGING; ULTRASONICS;

DISPLACEMENT VECOTR MEASUREMENT; LATERAL MODULATION (LM); POINT SPREAD FUNCTION (PSF); SINGULAR VALUE DECOMPOSITION (SVD); ULTRASOUND IMAGING; WEIGHTED MINIMUM NORM LEAST SQUARES ESTIMATUIONS (WMNLSQ);

SINGULAR VALUE DECOMPOSITION;

EID: 43349101949     PISSN: 10510117     EISSN: None     Source Type: Conference Proceeding    
DOI: 10.1109/ULTSYM.2007.392     Document Type: Conference Paper

References (19)

1. C. Sumi and T. Noro, "Lateral Gaussian envelope cosine modulation method (LGECMM) (4th report) - A breakaway from Fraunhofer approximation," Proc. 2006 Fall Meeting Acoust. Soc. Jpn, pp. 1035-1036 (2006) (in Japanese).
2. C. Sumi, Japanese Patent Application 2006-193506, "Beamforming apparatus and method," July 14, 2006.
3. C. Sumi, "Realization of the best beamforming," Proc. 2007 Spring Meeting Acoust. Soc. Jpn, pp. 1211-1222 (2007) (in Japanese).
4. J. A. Snyman, Practical Mathematical Optimization: an Introduction to Basic Optimization Theory and Classical and New Gradient-Based Algorithms (Springer, Berlin, 2005).
5. J. A Jensen, "A new method for estimation of velocity vectors," IEEE Trans. on Ultrasonics, Ferroelectrics, and Frequency Control, vol. 45, pp. 837-851(1998).
6. C. Sumi, "Multidimensional displacement vector measurement methods utilizing instantaneous phase," Proc. 27th Int. Conf. IEEE Eng. Med. Biol. Soc., CD-ROM, (2005).
7. C. Sumi, "Displacement vector measurement using instantaneous ultrasound signal phase -multidimensional autocorrelation and Doppler methods" IEEE Trans. Ultrasonics, Ferroelectrics, Frequency Control (in press).
8. C. Sumi, "Tissue shear modulus reconstruction using ultrasonic strain tensor measurement -applications of lateral modulation and regularization," Acoustical Imaging, vol. 29 (Springer, Berlin, 2007) (in press).
9. C. Sumi, T. Noro and A Tanuma, "Effective lateral modulations with applications to shear modulus reconstruction using displacement vector measurement" (under review).
10. C. Sumi, A. Suzuki and K. Nakayama, "Phantom experiment on estimation of shear modulus distribution in son tissue from ultrasonic measurement of displacement vector field," IEICE Trans. Fundamental, Vol. E78-A, No. 12, pp. 1655-1664(1995).
11. C. Sumi, "Fine elasticity imaging on utilizing the iterative rf-echo phase matching method," IEEE Trans. Ultrasonics, Ferroelectrics, Frequency Control, Vol. 46, pp. 158-166 (1999).
12. C. Sumi, "Improvement of measurement accuracy of displacement vector by lateral modulation," Proc. of the 2004 Autumn Meeting of the Acoustical Society of Japan, pp. 1353-1354, September 2004 (in Japanese).
13. C. Sumi and A Tanuma, "Shear modulus reconstruction by strain tensor measurement using lateral modulation" (under review).
14. C. Sumi, "A case of apodization function using singular- value decomposition: Determination of beamforming parameters by optimization," Acoustical Science and Technology (in press).
15. C. Sumi, "Ultrasonic axial strain measurement for lateral tissue deformation, Ultrasound Med Biol, vol. 33, pp. 1830-1837, 2007.
16. C. Sumi, "Usefulness of ultrasonic strain measurement-based shear modulus reconstruction for diagnosis and thermal treatment," IEEE Trans. on Ultrasonics, Ferroelectrics, and Frequency Control, vol. 56, pp. 1670-1689, 2005.
17. J. A. Jensen, "Field: A program for simulating ultrasound systems," Med. Biol. Eng. Comp., 10th Nordic-Baltic Conference on Biomedical Imaging, Vol. 4, Suppl. 1, Part 1, pp. 351-353 (1996).
18. D. A Guenther, W. F. Walker, "Optimal apodization design for medical ultrasound using constrained least squares Part I: Theory," IEEE Trans. on Ultrasonics, Ferroelectrics, and Frequency Control, vol. 54, pp. 332-342, 2007.
19. C. Sumi, H. Yanagimura, "Reconstruction of thermal property distributions of tissue phantoms from temperature measurements -thermal conductivity, thermal capacity and thermal diffusivity," Phys. Med. Biol., vol. 52, pp. 2845-2863, 2007.