3D strain imaging using a rectilinear 2D array.
Under mechanical compression, tissue movements are inherently three-dimensional. 2-D strain imaging can suffer from decorrelation noise caused by out-of-plane tissue movement in elevation. With 3-D strain imaging, all tissue movements can be estimated and compensated, hence minimizing out-of-plane d...
| Publicado en: | Ultrasonic Imaging Vol. 29; no. 4; pp. 220 - 231 |
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| Autores principales: | , , , |
| Formato: | research Journal Article |
| Publicado: |
Sage Publications Inc.
2007 Oct
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=105786234&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 105786234 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 01617346 2HF jtl: Ultrasonic Imaging issn: 01617346 maglogo: Y pubinfo: dt: 2007 Oct vid: 29 iid: 4 pid: 344 pub: Sage Publications Inc. place: Thousand Oaks, California artinfo: ui: 105786234 105786234 NLM18481594 2009903369 NLM18481594 105786234 ppf: 220 ppct: 11 formats: tig: atl: 3D strain imaging using a rectilinear 2D array. aug: au: Awad SI Yen JT Awad, Samer I Yen, Jesse T affil: USC Viterbi School of Engineering, University Park, Los Angeles, CA 90089-1111, USA sug: subj: Diagnostic Imaging Ultrasonography Methods Image Processing, Computer Assisted Phantoms, Imaging Signal Processing, Computer Assisted Ultrasonography Equipment and Supplies ab: Under mechanical compression, tissue movements are inherently three-dimensional. 2-D strain imaging can suffer from decorrelation noise caused by out-of-plane tissue movement in elevation. With 3-D strain imaging, all tissue movements can be estimated and compensated, hence minimizing out-of-plane decorrelation noise. Promising 3-D strain imaging results have been shown using 1-D arrays with mechanical translation in elevation. However, the relatively large slice thickness and mechanical translation can degrade image quality. Using 2-D arrays, an improved elevational resolution can be achieved with electronic focusing. Furthermore, scanning with 2-D arrays is also done electronically, which eliminates the need for mechanical translation. In this paper, we demonstrate the feasibility of 3-D strain imaging using a 4 cm x 4 cm ultrasonic sparse rectilinear 2-D array operating at 5MHz. The signal processing combinations of 2-D or 3-D beamforming followed by 2-D or 3-D strain imaging are studied and compared to each other to evaluate the performance of our 3-D strain imaging system. 3-D beamforming followed by 3-D strain imaging showed best performance in all experiments. pubtype: Academic Journal doctype: research Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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