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Journal of Medical Imaging

Enhanced resolution pulse-echo imaging with stabilized pulses
Author(s): Shujie Chen; Kevin J. Parker
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Paper Abstract

Many pulse-echo imaging systems use focused beams to improve lateral resolution. The beam width is determined by the choice of source and apodization function, the frequency, and the physics of focusing. Postprocessing strategies to improve lateral resolution can be limited by the need for conditioning the mathematics of inverse filtering, due to instabilities. We present an analysis that defines key constraints on sampled versions of lateral beampatterns. Within these constraints are useful symmetric beampatterns, which, when properly sampled, can have a stable inverse filter. A framework for analysis and processing is described and applied to phantoms and tissues to demonstrate the improvements that can be realized.

Paper Details

Date Published: 22 June 2016
PDF: 13 pages
J. Med. Imag. 3(2) 027003 doi: 10.1117/1.JMI.3.2.027003
Published in: Journal of Medical Imaging Volume 3, Issue 2
Show Author Affiliations
Shujie Chen, Univ. of Rochester (United States)
Kevin J. Parker, Univ. of Rochester (United States)

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