作者
Marvin M Doyley, Jeffery C Bamber, Frank Fuechsel, Nigel L Bush
发表日期
2001/10/1
期刊
Ultrasound in medicine & biology
卷号
27
期号
10
页码范围
1347-1357
出版商
Elsevier
简介
A prototype freehand elastographic imaging system has been developed for clinical breast imaging. The system consists of a fast data acquisition system, which is able to capture sequences of intermediate frequency echo frames at full frame rate from a commercial ultrasound scanner whilst the breast is deformed using hand-induced transducer motion. Two-dimensional echo tracking was used in combination with global distortion compensation and multi-compression averaging to minimise decorrelation noise incurred when stress is applied using hand-induced transducer motion. Experiments were conducted on gelatine phantoms to evaluate the quality of elastograms produced using the prototype system relative to those produced using mechanically induced transducer motion. The strain sensitivity and contrast-to-noise ratio of freehand elastograms compared favourably with elastograms produced using …
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MM Doyley, JC Bamber, F Fuechsel, NL Bush - Ultrasound in medicine & biology, 2001