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Title: Method for position emission mammography image reconstruction

Abstract

An image reconstruction method comprising accepting coincidence datat from either a data file or in real time from a pair of detector heads, culling event data that is outside a desired energy range, optionally saving the desired data for each detector position or for each pair of detector pixels on the two detector heads, and then reconstructing the image either by backprojection image reconstruction or by iterative image reconstruction. In the backprojection image reconstruction mode, rays are traced between centers of lines of response (LOR's), counts are then either allocated by nearest pixel interpolation or allocated by an overlap method and then corrected for geometric effects and attenuation and the data file updated. If the iterative image reconstruction option is selected, one implementation is to compute a grid Siddon retracing, and to perform maximum likelihood expectation maiximization (MLEM) computed by either: a) tracing parallel rays between subpixels on opposite detector heads; or b) tracing rays between randomized endpoint locations on opposite detector heads.

Inventors:
Publication Date:
Research Org.:
Southeastern Universities Research Association, Inc.,Newport News, VA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1175078
Patent Number(s):
6,804,325
Application Number:
10/280,699
Assignee:
Southeastern Universities Research Association, Inc. OSTI
DOE Contract Number:  
AC05-84ER 40150
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY

Citation Formats

Smith, Mark Frederick. Method for position emission mammography image reconstruction. United States: N. p., 2004. Web.
Smith, Mark Frederick. Method for position emission mammography image reconstruction. United States.
Smith, Mark Frederick. Tue . "Method for position emission mammography image reconstruction". United States. https://www.osti.gov/servlets/purl/1175078.
@article{osti_1175078,
title = {Method for position emission mammography image reconstruction},
author = {Smith, Mark Frederick},
abstractNote = {An image reconstruction method comprising accepting coincidence datat from either a data file or in real time from a pair of detector heads, culling event data that is outside a desired energy range, optionally saving the desired data for each detector position or for each pair of detector pixels on the two detector heads, and then reconstructing the image either by backprojection image reconstruction or by iterative image reconstruction. In the backprojection image reconstruction mode, rays are traced between centers of lines of response (LOR's), counts are then either allocated by nearest pixel interpolation or allocated by an overlap method and then corrected for geometric effects and attenuation and the data file updated. If the iterative image reconstruction option is selected, one implementation is to compute a grid Siddon retracing, and to perform maximum likelihood expectation maiximization (MLEM) computed by either: a) tracing parallel rays between subpixels on opposite detector heads; or b) tracing rays between randomized endpoint locations on opposite detector heads.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2004},
month = {10}
}

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