Comparison of the relative performance of three ultrasonic backscatter parameters measured in vivo at the femoral neck

2021 ◽  
Vol 150 (4) ◽  
pp. A89-A89
Author(s):  
Brent K. Hoffmeister ◽  
Sarah I. Delahunt ◽  
Kiera L. Downey ◽  
Ann M. Viano ◽  
Will R. Newman ◽  
...  
Keyword(s):  
Femoral Neck ◽  
Relative Performance ◽  
Ultrasonic Backscatter

Measurements of ultrasonic backscatter coefficients in human liver and kidney in vivo

1995 ◽  
Vol 98 (4) ◽  
pp. 1852-1857 ◽  
Author(s):  
Keith A. Wear ◽  
Brian S. Garra ◽  
Timothy J. Hall
Keyword(s):  
Human Liver ◽  
Liver And Kidney ◽  
Ultrasonic Backscatter

Measurement of the Human Calcaneus In Vivo Using Ultrasonic Backscatter Spectral Centroid Shift

2016 ◽  
Vol 35 (10) ◽  
pp. 2197-2208 ◽  
Author(s):  
Chengcheng Liu ◽  
Feng Xu ◽  
Dean Ta ◽  
Tao Tang ◽  
Yunqi Jiang ◽  
...  
Keyword(s):  
Spectral Centroid ◽  
Centroid Shift ◽  
Ultrasonic Backscatter

scholarly journals Ultrasonic Backscatter Technique for Assessing and Monitoring Neonatal Cancellous Bone Status in Vivo

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 157417-157426 ◽  
Author(s):  
Weiying Mao ◽  
Yang Du ◽  
Chengcheng Liu ◽  
Boyi Li ◽  
Dean Ta ◽  
...  
Keyword(s):  
Cancellous Bone ◽  
Bone Status ◽  
Ultrasonic Backscatter

Ultrasonic bone assessment: backscatter difference measurements of the femoral neck in vivo

2020 ◽  
Vol 148 (4) ◽  
pp. 2561-2561
Author(s):  
Kiera L. Downey ◽  
Sarah I. Delahunt ◽  
Loukas A. Georgiou ◽  
Aubrey J. Gray ◽  
Doni M. Thomas ◽  
...  
Keyword(s):  
Femoral Neck ◽  
Bone Assessment

In Vivo Observations of Hydraulic Stiffening in the Canine Femoral Head

1997 ◽  
Vol 119 (1) ◽  
pp. 103-108 ◽  
Author(s):  
J. A. Ochoa ◽  
A. P. Sanders ◽  
T. W. Kiesler ◽  
D. A. Heck ◽  
J. P. Toombs ◽  
...  
Keyword(s):  
Femoral Head ◽  
Femoral Neck ◽  
Boundary Conditions ◽  
Mechanical Response ◽  
Ex Vivo ◽  
Femoral Cortex ◽  
Hind Limbs ◽  
Femoral Heads ◽  
Fluid Boundary

The role that intertrabecular contents and their boundary conditions have on the dynamic mechanical response of canine femoral heads was investigated in vivo. Femoral heads from paired intact hind limbs of canine specimens were subjected to a sinusoidal strain excitation, at physiologic frequencies, in the cranio-caudal direction. The fluid boundary conditions for the contralateral limbs were changed by predrilling through the lateral femoral cortex and into the femoral neck. The drilling procedure did not invade the head itself. This femoral head fluid boundary alteration reduced the stiffness by 19 percent for testing at 1 Hz. The results of this study demonstrate that fluid stiffening occurs in vivo as previously observed ex vivo.

Ultrasonic Backscatter from Contrast Producing Collagen Microspheres

1980 ◽  
Vol 2 (1) ◽  
pp. 67-77 ◽  
Author(s):  
J. Ophir ◽  
A. Gobuty ◽  
R. E. McWhirt ◽  
N. F. Maklad
Keyword(s):  
Particle Size ◽  
Intravenous Injection ◽  
Diagnostic Equipment ◽  
Erythrocyte Suspension ◽  
Ultrasonic Backscatter

Measurements of ultrasonic backscatter from solid collagen microspheres in suspension and from a standard erythrocyte suspension were performed. When normalized to a standard particle size and concentration, the back-scatter from the collagen was 29.6 dB above that of the erythrocytes. An in vivo canine experiment using commercial diagnostic equipment demonstrated enhanced backscatter from the liver after intravenous injection of the microspheres. Calculations show that the in vivo enhancement cannot be explained from the earlier studies. Possible mechanisms responsible for this effect are proposed.

Using phase information in ultrasonic backscatter for in vivo liver analysis

1998 ◽  
Vol 24 (1) ◽  
pp. 79-91 ◽  
Author(s):  
R.C. Molthen ◽  
V.M. Narayanan ◽  
P.M. Shankar ◽  
J.M. Reid ◽  
V. Genis ◽  
...  
Keyword(s):  
Phase Information ◽  
Ultrasonic Backscatter
Sign in / Sign up

Export Citation Format

Share Document