NDLI: Development of a High-Energy Gamma Camera for use with NSECT Imaging of the Breast

Content Provider	IEEE Xplore Digital Library
Author	Sharma, A.C. Tourassi, G.D. Kapadia, A.J. Bender, J.E. Xia, J.Q. Harrawood, B.P. Crowell, A.S. Kiser, M.R. Howell, C.R. Floyd, C.E.
Copyright Year	2006
Description	Author affiliation: Dept. of Biomed. Eng., Duke Univ., Durham, NC (Sharma, A.C.)
Abstract	A new imaging technique, neutron stimulated emission computed tomography (NSECT), is being developed that has potential for utilization in breast cancer imaging. NSECT is a spectroscopic imaging technique that is able to produce elemental concentration images and previous studies have identified differences in trace element concentrations between malignant and benign tissues. NSECT illuminates the body via a beam of neutrons causing elemental nuclei to become excited and emit characteristic gamma radiation. By imaging the gamma rays in a tomographic manner it is possible to reconstruct elemental composition images. This method requires high-resolution spectroscopy, thereby eliminating the use conventional scintillation gamma cameras; in this case, spectral information is obtained from high-purity germanium (HPGe) semiconductor detectors, providing only 1D spatial information. To obtain 2D elemental concentration images, we are adapting high-energy solar spectroscopy technology. A rotating modulation collimator (RMC) consisting of two parallel-slat collimators is placed in front of the detector and modulates the incoming signal in a manner predicted by its geometry. Reconstruction of 2D images is possible by counting the number incident gammas at each rotation angle. A significant challenge is presented when attempting to modify the RMC for use in the near field and a prototype camera has been constructed to verify the geometric validity of a RMC for this use. Herein we present the progress to date in the design and development of a high-energy spectroscopic gamma camera for use with NSECT imaging of the breast.
Starting Page	3925
Ending Page	3927
File Size	1335866
Page Count	3
File Format	PDF
ISBN	1424405602
ISSN	10957863
DOI	10.1109/NSSMIC.2006.353846
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-10-29
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Cameras Optical imaging Breast Spectroscopy Neutrons Gamma rays Image reconstruction Solid scintillation detectors Collimators Stimulated emission
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
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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

Design and Development of a High-Energy Gamma Camera for Use With NSECT Imaging: Feasibility for Breast Imaging

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