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Title of Journal: J ElectronChina

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Abbravation: Journal of Electronics (China)

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SP Science Press

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10.1016/0022-0248(91)90731-j

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1993-0615

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High resolution realtime medical imaging based on

Authors: Lutao Wang Gang Jin Hongbing Xu
Publish Date: 2012/03/08
Volume: 28, Issue: 4-6, Pages: 558-564
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Abstract

Improvement of framerate is very important for high quality ultrasound imaging of fastmoving structures It is also one of the key technologies of ThreeDimension 3D realtime medical imaging In this paper we have demonstrated a beamforming method which gives imaging framerate increment without sacrificing the quality of medical images By using wider and fewer transmit beams in combination with four narrower parallel receive beams potentially increasing the imaging framerate by a factor four Through employing full transmit aperture controlling the mainlobe width and suppressing sidelobes of angular responses the inherent gain loss of normal parallel beamfomer can be compensated in the maximal degree The noise and interference signals also can be suppressed effectively Finally we show comparable lateral resolution and contrast of ultrasound images to normal single widow weighting beamformer on simulated phantoms of point targets cyst and fetus of 12th week As the computational cost is linear with the number of array elements and the same with Delay And Sum DAS beamformers this method has great advantages of possibility for high framerate realtime applications

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