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Keywords: phantoms
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Journal Articles
Article Type: Research Papers
J Biomech Eng. August 2011, 133(8): 081006.
Published Online: September 6, 2011
... on physical and virtual phantoms are presented to test and validate procedures and algorithms and to interpret elastosonographic results. In this work, first a description of the elastographic technique and a review of the principal finite element (FE) models are provided and second diagnostic indexes...
Journal Articles
Article Type: Research Papers
J Biomech Eng. July 2011, 133(7): 071001.
Published Online: July 13, 2011
... the distribution of material properties based on bone mineral density, and these properties were then mapped onto the finite element mesh. A sensitivity study was first conducted on a calibration phantom to understand the influence of the size of the material blocks on the computed bone mineral density...
Journal Articles
Article Type: Research Papers
J Biomech Eng. June 2011, 133(6): 061007.
Published Online: June 28, 2011
... LDV laser light intensity. The technique of performing LDV measurements near to biological surfaces as well as the leaflet locating technique was first validated in two phantom flow systems: (1) steady flow within a straight tube with AV leaflet adhered to the wall, and (2) steady flow within...
Journal Articles
Article Type: Research Papers
J Biomech Eng. April 2011, 133(4): 041003.
Published Online: February 23, 2011
... phantom under physiological flow and pressure conditions. We constructed a two-outlet physical flow phantom based on patient imaging data of an AAA and developed a physical Windkessel model to use as outlet boundary conditions. We then acquired PCMRI data in the phantom while it operated under conditions...
Journal Articles
Article Type: Technical Briefs
J Biomech Eng. April 2010, 132(4): 044505.
Published Online: March 18, 2010
... deposition. The purpose of this study was to investigate the optical and thermal response of tissue representative phantoms containing MWNTs to optical radiation. Tissue representative phantoms 20 mm in diameter and 1 mm in thickness were created from sodium alginate. Following the inclusion of MWNTs (900 nm...
Journal Articles
Article Type: Research Papers
J Biomech Eng. October 2008, 130(5): 051005.
Published Online: July 11, 2008
... of cryogen sprays and correspondent thermal dynamics at the surface of a human tissue phantom. First, a numerical analysis was carried out to evaluate an epoxy block substrate as a human tissue phantom. Next, the velocity and diameter of cryogen droplets were measured simultaneously and correlated...
Journal Articles
Article Type: Research Papers
J Biomech Eng. October 2008, 130(5): 051002.
Published Online: July 10, 2008
...Ashvinikumar V. Mudaliar; Brent E. Ellis; Patricia L. Ricketts; Otto I. Lanz; Elaine P. Scott; Thomas E. Diller A convenient method for testing and calibrating surface perfusion sensors has been developed. A phantom tissue model is used to simulate the nondirectional blood flow of tissue perfusion...
Journal Articles
Article Type: Technical Papers
J Biomech Eng. February 2006, 128(1): 24–29.
Published Online: August 16, 2005
... of FFT to ensure the accuracy of the ultrasound phase velocity. As a result, the new method exhibited high accuracy in the measurement of ultrasound phase velocity of two phantom blocks with the error less than 0.4%. 41 cubic trabecular samples from sheep femoral condyles were used in the study...
Journal Articles
Article Type: Technical Papers
J Biomech Eng. October 2005, 127(5): 829–837.
Published Online: May 31, 2005
... of the linear and angular velocities is used to predict updated trajectories. A moving validation phantom that produces motions and velocity data similar to those observed in an experiment on human knee kinematics was designed. This phantom was used to assess cine-PC rigid body tracking performance by comparing...
Journal Articles
Article Type: Technical Papers
J Biomech Eng. February 2005, 127(1): 148–157.
Published Online: March 8, 2005
... set of material parameters. The material parameters which best fit the FEM predicted displacements to the displacements reconstructed from the tagged images were found by nonlinear optimization. The equipment and method were validated using inflation of a deformable silicon gel phantom in the shape...
Journal Articles
Article Type: Technical Papers
J Biomech Eng. December 2004, 126(6): 736–744.
Published Online: February 4, 2005
...Loay Massalha; Avraham Shitzer The effects of a thermally-significant blood vessel, simulated by an embedded acrylic tube, 4.8 mm outer diameter, on the freezing field caused by a surface cryoprobe were studied experimentally in a tissue phantom. The flat, 15 mm diameter, circular cryoprobe...
Journal Articles
Article Type: Technical Papers
J Biomech Eng. August 2004, 126(4): 506–515.
Published Online: September 27, 2004
... to quantify the recoil momentum during Ho:YAG laser lithotripsy. The correlation among crater shape, debris trajectory, laser-induced bubble and recoil momentum was investigated. Calculus phantoms made from plaster of Paris were ablated with free running Ho:YAG lasers. The dynamics of recoil action...