NDLI: Noise reduction strategies in freehand elasticity imaging

Content Provider	IEEE Xplore Digital Library
Author	Hall, T.J. Jingfeng Jiang Yanning Zhu Cook, L.T.
Copyright Year	2002
Description	Author affiliation: Dept. of Radiol., Kansas Univ. Med. Center, Kansas City, KS, USA (Hall, T.J.; Jingfeng Jiang; Yanning Zhu; Cook, L.T.)
Abstract	We are developing a clinical ultrasonic imaging system for real-time estimation and display of tissue elastic properties. We have demonstrated that real-time feedback of elasticity images is essential for obtaining high-quality data (consecutive images with high spatial coherence). The key element to successful scanning is real-time visual feedback which guides the patient positioning and compression direction. Our data have clearly demonstrated nonlinearity in the strain properties of different tissue types. We have also demonstrated that a comparison of the area of a breast lesion observed in strain images versus B-mode images is a sensitive criterion for differentiating malignant from benign tumors. Frame-to-frame variability in strain images somewhat degrades the ability to observe these phenomena. Three strategies for reducing frame-to-frame strain image noise are described. The combination of these post-processing strategies provides a significant improvement in the quality of long sequences of strain images.
Sponsorship	Ultransonics Ferroelectr., & Frequency Control Soc
Starting Page	1877
Ending Page	1880
File Size	425759
Page Count	4
File Format	PDF
ISBN	0780375823
ISSN	10510117
DOI	10.1109/ULTSYM.2002.1192664
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-10-08
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Noise reduction Elasticity Capacitive sensors Ultrasonic imaging Feedback Real time systems Displays Spatial coherence Image coding Breast
Content Type	Text
Resource Type	Article

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