Spectral characterization and attenuation measurements in ultrasound

SW Flax, NJ Pelc, GH Glover, FD Gutmann… - Ultrasonic Imaging, 1983 - Elsevier
Various means of characterizing ultrasonic attenuation in tissue are reviewed. A simple
method for estimating frequency-dependent attenuation via measurement of the zero …

Improvements in the spectral difference method for measuring ultrasonic attenuation

M Insana, J Zagzebski, E Madsen - Ultrasonic imaging, 1983 - Elsevier
The accuracy of the spectral difference method for measuring ultrasonic attenuation has
been investigated using tissue-mimicking phantoms. Attenuation coefficients of the phantom …

A beam corrected estimation of the frequency dependent attenuation of biological tissues from backscattered ultrasound

M Cloostermans, JM Thijssen - Ultrasonic Imaging, 1983 - Elsevier
A practical and highly accurate method of estimation of the frequency-dependent slope of
the acoustic attenuation coefficient, α 1, using backscattered ultrasound energy is presented …

A spectral approach to ultrasonic scattering from human tissue: methods, objectives and backscattering measurements

RC Chivers, CR Hill - Physics in Medicine & Biology, 1975 - iopscience.iop.org
The dearth of information on the physical processes involved in the propagation of
ultrasound in tissue and the growing need for such information are discussed. The physical …

Measurement of ultrasonic attenuation within regions selected from B-scan images

KJ Parker, RC Waag - IEEE transactions on biomedical …, 1983 - ieeexplore.ieee.org
This paper describes the calculation of absolute ultrasonic attenuation as a function of
frequency by processing backscattered signals obtained from a clinical imaging instrument …

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

EL Madsen, F Dong, GR Frank… - Journal of ultrasound …, 1999 - Wiley Online Library
In a study involving 10 different sites, independent results of measurements of ultrasonic
properties on equivalent tissue‐mimicking samples are reported and compared. The …

Effects of diffraction on measurements of the frequency-dependent ultrasonic attenuation

M O'donnell - IEEE Transactions on Biomedical Engineering, 1983 - ieeexplore.ieee.org
Using a one-dimensional model of wave propagation, the ultrasonic attenuation can be
estimimated from spectral analysis of RF A-scans. The results of computer modeling studies …

Frequency domain processing for ultrasonic attenuation measurement in liver

LS Wilson, DE Robinson, BD Doust - Ultrasonic imaging, 1984 - Elsevier
A frequency domain signal processing scheme is developed for measuring attenuation and
attenuation slope in vivo, using equally spaced depth samples and linear regression …

A narrowband pulse-echo technique for in vivo ultrasonic attenuation estimation

J Ophir, RE McWhirt, NF Maklad… - IEEE transactions on …, 1985 - ieeexplore.ieee.org
The principles of a narrowband technique for pulse echo attenuation measurements are
presented. Experiments are described which compare the attenuation in tissue-mimicking …

Comparison of techniques for in vivo attenuation measurements

KJ Parker, RM Lerner, RC Waag - IEEE Transactions on …, 1988 - ieeexplore.ieee.org
The attenuation of an ultrasound pulse within tissue can be estimated from either the
amplitude decay or the frequency downshift of returning echoes. The authors compare the …