NDLI: Application of eigen-spaced beamformers for imaging lamina of vertebral arch

Content Provider	IEEE Xplore Digital Library
Author	Mehdizadeh, S. Muller, S. Johansen, T.F. Holm, S.
Copyright Year	2012
Description	Author affiliation: Dept. of Circulation & Med. Imaging, Norwegian Univ. of Sci. & Technol., Trondheim, Norway (Mehdizadeh, S.; Johansen, T.F.; Holm, S.) \|\| Dept. of Med. Technol., SINTEF, Trondheim, Norway (Muller, S.)
Abstract	Ultrasound (US) has been proposed as a guidance tool for spinal intervention. However, bone structures are often visualized poorly in the standard US images which is based on the delay and sum beamforming method (DAS). In this study, we investigate combination of an eigenspace based beamformer (ESMV) with the phase symmetry (PS) post-processing technique to extract the lamina surface from ultrasound images. Thereby, in simulation, and in-vivo studies we show that an ESMV beamformer with a rank-1 signal subspace, can keep the bone structure and improve the edges, despite some distortion of the speckle pattern. The PS images obtained from this beamformer setup have sharper bone boundaries compared with the DAS ones.
Starting Page	2238
Ending Page	2241
File Size	985963
Page Count	4
File Format	PDF
ISBN	9781467345613
ISSN	19485719
e-ISBN	9781467345620
DOI	10.1109/ULTSYM.2012.0559
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-10-07
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Ultrasonic imaging Bones Biomedical imaging Array signal processing Surgery Image edge detection Lamina Adaptive beamformer Eigenspace-based Phase Symmetry Spine
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
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