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Conference Paper: Characterization of the heart muscle aniosotropy using ultrasound Nakagami imaging

TitleCharacterization of the heart muscle aniosotropy using ultrasound Nakagami imaging
Authors
KeywordsAnsiotropy
Backscattering
Myocardium
Nakagami distribution
Issue Date2014
PublisherIEEE. The Journal's web site is located at http://www.ieeexplore.ieee.org/xpl/conhome.jsp?punumber=1000770
Citation
The 2014 IEEE International Ultrasonics Symposium (IUS), Chicago, IL., 3-6 September 2014. In IEEE Ultrasonics Symposium Proceedings, 2014, p. 2367-2370 How to Cite?
AbstractThe myocardial architecture of the left ventricle is important for diagnosis, as it is associated with the mechanical and electrical functions. Nakagami imaging has been used in modeling the statistics of backscattered ultrasound signals in soft tissues, and the m value is found capable of differentiating various scattering conditions. Therefore, this study aims to apply Nakagami imaging to explore its feasibility in evaluation of the structural anisotropy in the myocardium. Three excised porcine left ventricles were embedded in gelatin phantoms and imaged in standard long- and short-axis views using the coherent plane wave compounding technique and a linear array probe operating at 5.2 MHz. The Nakagami parametric map was generated using a window-based method using an optimized window size of 12λ × 12λ. Four parameters, including mean, variance, skewness and kurtosis, were used to characterize the distribution of m values. Our results showed that the distributions of m values in the middle layers were statistically different from the subepicardial and subendocardial layers (p < 0.05). The mean m values were significantly different both between anterior and posterior heart walls and between long- and short-axis views (p < 0.05). Our preliminary results showed a potential of Nakagami imaging in myocardial anisotropy characterization. © 2014 IEEE.
Persistent Identifierhttp://hdl.handle.net/10722/208745
ISBN
ISSN

 

DC FieldValueLanguage
dc.contributor.authorYu, X-
dc.contributor.authorLee, WN-
dc.date.accessioned2015-03-18T09:09:03Z-
dc.date.available2015-03-18T09:09:03Z-
dc.date.issued2014-
dc.identifier.citationThe 2014 IEEE International Ultrasonics Symposium (IUS), Chicago, IL., 3-6 September 2014. In IEEE Ultrasonics Symposium Proceedings, 2014, p. 2367-2370-
dc.identifier.isbn978-1-4799-7049-0-
dc.identifier.issn1051-0117-
dc.identifier.urihttp://hdl.handle.net/10722/208745-
dc.description.abstractThe myocardial architecture of the left ventricle is important for diagnosis, as it is associated with the mechanical and electrical functions. Nakagami imaging has been used in modeling the statistics of backscattered ultrasound signals in soft tissues, and the m value is found capable of differentiating various scattering conditions. Therefore, this study aims to apply Nakagami imaging to explore its feasibility in evaluation of the structural anisotropy in the myocardium. Three excised porcine left ventricles were embedded in gelatin phantoms and imaged in standard long- and short-axis views using the coherent plane wave compounding technique and a linear array probe operating at 5.2 MHz. The Nakagami parametric map was generated using a window-based method using an optimized window size of 12λ × 12λ. Four parameters, including mean, variance, skewness and kurtosis, were used to characterize the distribution of m values. Our results showed that the distributions of m values in the middle layers were statistically different from the subepicardial and subendocardial layers (p < 0.05). The mean m values were significantly different both between anterior and posterior heart walls and between long- and short-axis views (p < 0.05). Our preliminary results showed a potential of Nakagami imaging in myocardial anisotropy characterization. © 2014 IEEE.-
dc.languageeng-
dc.publisherIEEE. The Journal's web site is located at http://www.ieeexplore.ieee.org/xpl/conhome.jsp?punumber=1000770-
dc.relation.ispartofIEEE Ultrasonics Symposium Proceedings-
dc.rightsIEEE Ultrasonics Symposium Proceedings. Copyright © IEEE.-
dc.rights©2014 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.-
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subjectAnsiotropy-
dc.subjectBackscattering-
dc.subjectMyocardium-
dc.subjectNakagami distribution-
dc.titleCharacterization of the heart muscle aniosotropy using ultrasound Nakagami imaging-
dc.typeConference_Paper-
dc.identifier.emailYu, X: nancyyx@hku.hk-
dc.identifier.emailLee, WN: wnlee@hku.hk-
dc.identifier.authorityLee, WN=rp01663-
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1109/ULTSYM.2014.0590-
dc.identifier.scopuseid_2-s2.0-84910026043-
dc.identifier.hkuros242719-
dc.identifier.spage2367-
dc.identifier.epage2370-
dc.publisher.placeUnited States-
dc.customcontrol.immutablesml 150416-

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