Abstract
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.
Original language | English |
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Journal | Ultrasonic Imaging |
Volume | 16 |
Issue number | 3 |
Pages (from-to) | 190-203 |
ISSN | 0161-7346 |
DOIs | |
Publication status | Published - 1994 |
Keywords
- Acoustics
- Radiology
- Engineering
- Images
- Deconvolution