scholarly journals Corrections to “The Role of Viscosity in the Impulse Diffraction Field of Elastic Waves Induced by the Acoustic Radiation Force” and “Supersonic Shear Imaging: A New Technique for Soft Tissue Elasticity Mapping”

Author(s):  
Lorne W. Hofstetter ◽  
Dennis L. Parker
2000 ◽  
Author(s):  
Laura A. Negron ◽  
William F. Walker ◽  
Francisco J. Fernandez

2015 ◽  
Vol 137 (4) ◽  
pp. 2313-2313
Author(s):  
Benjamin C. Treweek ◽  
Yurii A. Ilinskii ◽  
Evgenia A. Zabolotskaya ◽  
Mark F. Hamilton

2017 ◽  
Vol 42 (2) ◽  
pp. 321-331
Author(s):  
Nuria González-Salido ◽  
Jorge Camacho

Abstract Imaging the tissue displacements caused by Acoustic Radiation Force Impulse (ARFI) provides qualitative tissue elasticity maps around the focus. To increase imaging range, multi-focus techniques combine several images obtained with different focal depths. Since the acoustic radiation force depends on focus depth, axial distance and steering angle, a normalization process is required before blending multi-focal ARFI images so that changes in the displayed displacements represent true tissue elasticity variations. This work analyzes the sources of displacement variability in multi-focal-zone ARFI and proposes a procedure to normalize and combine partial images. The proposal is based on the system focal configuration, transducer characteristics and global tissue parameters found by ultrasonic measurements. Performance of the proposed algorithm is experimentally evaluated with tissue mimicking phantoms.


2015 ◽  
Vol 34 (2) ◽  
pp. 109-114
Author(s):  
Jeong-hwa Yang ◽  
Gwansuk Kang ◽  
Min Joo Choi

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