A reconstruction algorithm for breast cancer imaging with electrical impedance tomography in mammography geometry.

A reconstruction algorithm for breast cancer imaging with electrical impedance tomography in mammography geometry. Research Abstract Details 

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A reconstruction algorithm for breast cancer imaging with electrical impedance tomography in mammography geometry. Abstract Text:

Myoung Hwan Choi,Tzu-Jen Kao,David Isaacson,Gary J Saulnier,Jonathan C Newell,

The conductivity and permittivity of breast tumors are known to differ significantly from those of normal breast tissues, and electrical impedance tomography (EIT) is being studied as a modality for breast cancer imaging to exploit these differences. At present, X-ray mammography is the primary standard imaging modality used for breast cancer screening in clinical practice, so it is desirable to study EIT in the geometry of mammography. This paper presents a forward model of a simplified mammography geometry and a reconstruction algorithm for breast tumor imaging using EIT techniques. The mammography geometry is modeled as a rectangular box with electrode arrays on the top and bottom planes. A forward model for the electrical impedance imaging problem is derived for a homogeneous conductivity distribution and is validated by experiment using a phantom tank. A reconstruction algorithm for breast tumor imaging based on a linearization approach and the proposed forward model is presented. It is found that the proposed reconstruction algorithm performs well in the phantom experiment, and that the locations of a 5-mm-cube metal target and a 6-mm-cube agar target could be recovered at a target depth of 15 mm using a 32 electrode system.

A reconstruction algorithm for breast cancer imaging with electrical impedance tomography in mammography geometry. Publishing Authors By Initials

MH Choi,TJ Kao,D Isaacson,GJ Saulnier,JC Newell,

For similar diagnosis: diagnostic techniques and procedures: diagnostic imaging: tomography research abstracts see: diagnosis: diagnostic techniques and procedures: diagnostic imaging: tomography research

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A reconstruction algorithm for breast cancer imaging with electrical impedance tomography in mammography geometry. Journal Published:

PUBLICATION TYPE: Research Support, U.S. Gov't,

Journal: IEEE transactions on bio-medical engineering

VOLUME: 54

Page Numbers: 700-10

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ISSN: 0018-9294

DAY: 3

MONTH: Apr

YEAR: 2007

A reconstruction algorithm for breast cancer imaging with electrical impedance tomography in mammography geometry. Information

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LANGUAGE: eng

NlmUniqueID: 12737

A reconstruction algorithm for breast cancer imaging with electrical impedance tomography in mammography geometry. Keywords Mesh Terms:

KEYWORDS: Tomography

MESH TERMS: methods

Chemical & Substance for Abstract: A reconstruction algorithm for breast cancer imaging with electrical impedance tomography in mammography geometry. Information

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Grant and Affiliation Information for A reconstruction algorithm for breast cancer imaging with electrical impedance tomography in mammography geometry.

AFFILIATION: Department of Electrical and Electronics Engineering, Kangwon National University, 192-1, Hyoza 2 dong, Chunchon, Kangwondo, Korea. mhchoi@kangwon.ac.kr

Country: United States

AGENCY: United States NIBIB

GRANT: 1 R01 EB000456-01

ACRONYM: EB

MEDLINETA: IEEE Trans Biomed Eng

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