Journal article
Estimation of in-vivo pulses in medical ultrasound
An algorithm for the estimation of one-dimensional in-vivo ultrasound pulses is derived. The routine estimates a set of ARMA parameters describing the pulse and uses data from a number of adjacent rf lines. Using multiple lines results in a decrease in variance on the estimated parameters and significantly reduces the risk of terminating the algorithm at a local minimum.
Examples from use on synthetic data confirms the reduction in variance and increased chance of successful minimization termination. Simulations are also reported indicating the relation between the one-dimensional pulse and the three-dimensional, attenuated ultrasound field for a concave transducer.
Pulses are estimated from in-vivo liver data showing good resemblance to a pulse measured as the response from a planar reflector and then properly attenuated. The main application for the algorithm is to function as a preprocessing stage for deconvolution algorithms using parametric pulses.
Language: | English |
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Year: | 1994 |
Pages: | 190-203 |
ISSN: | 10960910 and 01617346 |
Types: | Journal article |
DOI: | 10.1006/uimg.1994.1012 |
ORCIDs: | Jensen, Jørgen Arendt |