Effective ultrasonic virtual sources which can be positioned independently of physical aperture focus positions

References

• Sumi C. Beamforming for realizing designed point spread function. Proc IEEE Ultrasonics Symp. 2007;1557–1562.
   Google Scholar
• Sumi C, Noro T, Tanuma A. Effective lateral modulations with applications to shear modulus reconstruction using displacement vector measurement. IEEE Trans Ultrason Ferroelect Freq Contr. 2008;55:2607–2625.
   Web of Science ®Google Scholar
• Sumi C. Displacement vector measurement using instantaneous ultrasound signal phase - Multidimensional autocorrelation and Doppler methods. IEEE Trans Ultrason Ferroelect Freq Contr. 2008;55:24–43.
   Web of Science ®Google Scholar
• Sumi C, Suzuki A, Nakayama K. Phantom experiment on estimation of shear modulus distribution in soft tissue from ultrasonic measurement of displacement vector field. IEICE Transactions on Fundamentals. 1995;E78-A:1655–1664.
   Google Scholar
• Sumi C. Usefulness of ultrasonic strain measurement-based shear modulus reconstruction for diagnosis and thermal treatment. IEEE Trans Ultrason, Ferroelect Freq Contr. 2005;52:1670–1689.
   Web of Science ®Google Scholar
• Sumi C, Komiya Y, Uga S. A demonstration of optimal apodization determination for proper lateral modulation. Jpn JAppl Phys. 2009;48(7B):07GJ06.
   Google Scholar
• Sumi C, Shimizu K, Matsui N. Proper analytic point spread function for lateral modulation. Jpn J Appl Phys. 2010;49(7B):07HF07.
   Google Scholar
• Sumi C, Uga S, Komiya Y. Lateral modulation - Use of virtual source (11th report). Proceedings of the 2009 Spring Meet. Acoustical Society of Japan. Tokyo; 2009;1381–1382. Japanese.
   Google Scholar
• Passmann C, Ermert H. A 100-MHz ultrasound imaging system for dermatologic and ophthalmologic diagnostics. IEEE Trans Ultrason Ferroelect Freq Contr. 1996;43:545–552.
   Web of Science ®Google Scholar
• Frazier CH, O’Beien WD Jr. Synthetic aperture techniques with a virtual source element. IEEE Trans Ultrason Ferroelect Freq Contr. 1998;45:196–207.
   PubMed Web of Science ®Google Scholar
• Bae MH, Jeong MK. A study of synthetic-aperture imaging with virtual source elements in B-mode ultrasound imaging systems. IEEE Trans Ultrason Ferroelect Freq Contr. 2000;47:1510–1519.
   Web of Science ®Google Scholar
• Wennerstrom E, Stepinski T. Model-based correction of diffraction effects of the virtual source element. IEEE Trans Ultrason Ferroelect Freq Contr. 2007;54:1614–1622.
   Web of Science ®Google Scholar
• Jitsumori A, Maekawa T. Mitsubishi Electric Corporation. Ultrasonic examination equipment. Japanese Patent Application S59–98288. May 16, 1984. Japanese.
   Google Scholar
• Maekawa T, Jitsumori A, Inari T. Virtual acoustical source using a phased array. Proceedings of the SICE meeting. Jul, 1984;623–624. Japanese.
   Google Scholar
• O’Donnell M, Thomas LJ. Efficient synthetic aperture imaging from a circular aperture with possible application to catheter-based imaging. IEEE Trans Ultrason Ferroelect Freq Contr. 1992;39:366–380.
   Web of Science ®Google Scholar
• Karaman M, Li PC, O’Donnell M. Synthetic aperture imaging for small scale systems. IEEE Trans Ultrason Ferroelect Freq Contr. 1995;42:429–442.
   Web of Science ®Google Scholar
• Lockwood GR, Talman JR, Brunke SS. Real-time 3-D ultrasound imaging using sparse synthetic aperture beamforming. IEEE Trans Ultrason Ferroelect Freq Contr. 1998;45:980–988.
   Web of Science ®Google Scholar
• Oddershede N, Jensen JA. Effects influencing focusing in synthetic aperture vector flow imaging. IEEE Trans Ultrason Ferroelect Freq Contr. 2007;54:1811–1825.
   Web of Science ®Google Scholar
• Haun MA, Jones DL, O’Brien WD Jr. Efficient three-dimensional imaging from a small cylindrical aperture. IEEE Trans Ultrason Ferroelect Freq Contr. 2002;49:861–870.
   Web of Science ®Google Scholar
• Sumi C, Suzuki A, Nakayama K. Estimation of shear modulus distribution in soft tissue from strain distribution. IEEE Trans Biomed Eng. 1995;42:193–202.
   PubMed Web of Science ®Google Scholar
• Sumi C. Lateral displacement measurement using steered beams with a steering angle. Reports in Medical Imaging. 2010; In press.
   Google Scholar