What question did this study set out to answer?

To evaluate and compare independent measurements of ultrasonic propagation speed, attenuation coefficients, and backscatter coefficients across multiple research sites using equivalent tissue-mimicking samples.

September 1, 1999Journal of Ultrasound in Medicine

Interlaboratory comparison of ultrasonic backscatter, attenuation, and speed measurements.

View Full Paper

Ask AI

Bookmark

Authors

FDFang DongElectric Power Research Institute GFGary R. FrankUniversity of Wisconsin System BGBrian S. GarraInnovative Imaging and Research (United States)

Discussion

Member takes

Implication

Multicenter comparative study reveals substantial variability in ultrasonic speed and backscatter measurements across ten laboratories, highlighting the need for standardized calibration.

Key Points

To evaluate and compare independent measurements of ultrasonic propagation speed, attenuation coefficients, and backscatter coefficients across multiple research sites using equivalent tissue-mimicking samples.
Conducted an interlaboratory comparison involving 10 independent research sites.
Assessed equivalent tissue-mimicking phantom samples to measure propagation speed, attenuation coefficients, and backscatter coefficients across varying frequencies.
Attenuation coefficient measurements demonstrated reasonably good agreement across the participating laboratories.
Propagation speed measurements yielded less satisfactory agreement between testing sites.
Backscatter coefficient measurements showed poor overall agreement, differing by as much as an order of magnitude across sites, though four laboratories aligned well in absolute values and frequency dependence.

Cite This Study

Dong et al. (1999) studied this question.

synapsesocial.com/papers/6a8aed8eeffeb02058b1e4d0 https://doi.org/10.7863/jum.1999.18.9.615

View Full Paper

Ask AI

Bookmark

Implication

Multicenter comparative study reveals substantial variability in ultrasonic speed and backscatter measurements across ten laboratories, highlighting the need for standardized calibration.

Interlaboratory comparison of ultrasonic backscatter, attenuation, and speed measurements.

Discussion

Member takes

Implication

Key Points

Cite This Study

Interlaboratory comparison of ultrasonic backscatter, attenuation, and speed measurements.

Discussion

Member takes

Implication

Key Points

Cite This Study

Also Consider

Also Consider