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:
- Issue Date:
- Research Org.:
- Southeastern Universities Research Association, Inc.,Newport News, VA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1175078
- Patent Number(s):
- 6804325
- Application Number:
- 10/280,699
- Assignee:
- Southeastern Universities Research Association, Inc.
- Patent Classifications (CPCs):
-
A - HUMAN NECESSITIES A61 - MEDICAL OR VETERINARY SCIENCE A61B - DIAGNOSIS
G - PHYSICS G01 - MEASURING G01T - MEASUREMENT OF NUCLEAR OR X-RADIATION
- 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}
}
Works referenced in this record:
Analysis of factors affecting positron emission mammography (PEM) image formation
journal, February 2003
- Smith, M. F.; Majewski, S.; Weisenberger, A. G.
- IEEE Transactions on Nuclear Science, Vol. 50, Issue 1