NDLI: Elastic nonlinearity imaging

Content Provider	IEEE Xplore Digital Library
Author	Hall, T.J. Oberait, A.A. Barbone, P.E. Sommer, A.M. Gokhale, N.H. Goenezent, S. Jingfeng Jiang
Copyright Year	2009
Description	Author affiliation: Mechanical Aerospace and Nuclear Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180 (Oberait, A.A.; Goenezent, S.) \|\| Department of Aerospace and Mechanical Engineering, Boston University, Boston, MA 02215 (Barbone, P.E.; Gokhale, N.H.) \|\| Medical Physics Department, University of Wisconsin, Madison, Wisconsin 53706 (Hall, T.J.; Sommer, A.M.; Jingfeng Jiang)
Abstract	Previous work has demonstrated improved diagnostic performance of highly trained breast radiologists when provided with B-mode plus elastography images over B-mode images alone. In those studies we have observed that elasticity imaging can be difficult to perform if there is substantial motion of tissue out of the image plane. So we are extending our methods to 3D/4D elasticity imaging with 2D arrays. Further, we have also documented the fact that some breast tumors change contrast with increasing deformation and those observations are consistent with in vitro tissue measurements. Hence, we are investigating imaging tissue stress-strain nonlinearity. These studies will require relatively large tissue deformations (e.g., > 20%) which will induce out of plane motion further justifying 3D/4D motion tracking. To further enhance our efforts, we have begun testing the ability to perform modulus reconstructions (absolute elastic parameter) imaging of in vivo breast tissues. The reconstructions are based on high quality 2D displacement estimates from strain imaging. Piecewise linear (secant) modulus reconstructions demonstrate the changes in elasticity image contrast seen in strain images but, unlike the strain images, the contrast in the modulus images approximates the absolute modulus contrast. Nonlinear reconstructions assume a reasonable approximation to the underlying constitutive relations for the tissue and provide images of the (near) zero-strain shear modulus and a nonlinearity parameter that describes the rate of tissue stiffening with increased deformation. Limited data from clinical trials are consistent with in vitro measurements of elastic properties of tissue samples and suggest that the nonlinearity of invasive ductal carcinoma exceeds that of fibroadenoma and might be useful for improving diagnostic specificity. This work is being extended to 3D.
Starting Page	1967
Ending Page	1970
File Size	549223
Page Count	4
File Format	PDF
ISBN	9781424432967
ISSN	1557170X
DOI	10.1109/IEMBS.2009.5333442
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-09-03
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Image reconstruction Elasticity Capacitive sensors In vitro Piecewise linear approximation Breast tumors Tracking Testing Performance evaluation In vivo
Content Type	Text
Resource Type	Article
Subject	Signal Processing Biomedical Engineering Health Informatics Computer Vision and Pattern Recognition

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
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

6C-1 Imaging the Elastic Nonlinearity of Tissues

Ultrasonic viscoelasticity imaging of nonpalpable breast lesions

Static mechanical assessment of elastic Young's modulus of tissue mimicking materials used for medical imaging

Acoustic elastography under dynamic compression using one-dimensional track motion

High Resolution Regional Elasticity Mapping of the Human Prostate

Microwave tomography in the context of complex breast cancer imaging

A regularization-free Young's modulus reconstruction algorithm for ultrasound elasticity imaging

Artificial Vitreous Humor for In Vitro Experiments

Impedance Estimation of Soft Tissue Using Ultrasound Signal

Elastic nonlinearity imaging

Similar Documents

6C-1 Imaging the Elastic Nonlinearity of Tissues

Ultrasonic viscoelasticity imaging of nonpalpable breast lesions

Static mechanical assessment of elastic Young's modulus of tissue mimicking materials used for medical imaging

Acoustic elastography under dynamic compression using one-dimensional track motion

High Resolution Regional Elasticity Mapping of the Human Prostate

Microwave tomography in the context of complex breast cancer imaging

A regularization-free Young's modulus reconstruction algorithm for ultrasound elasticity imaging

Artificial Vitreous Humor for In Vitro Experiments

Impedance Estimation of Soft Tissue Using Ultrasound Signal

Elastic nonlinearity imaging