| Exact and approximate Fourier rebinning of PET data from time-of-flight to non time-of-flight. | |
| | |
MedLine Citation:
|
PMID: 19124956 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
The image reconstruction problem for fully 3D TOF PET is challenging because of the large data sizes involved. One approach to this problem is to first rebin the data into one of the following lower dimensional formats: 2D TOF, 3D non TOF or 2D non TOF. Here we present a unified framework based on a generalized projection slice theorem for TOF data that can be used to compute each of these mappings. We use this framework to develop approaches for rebinning into non TOF formats without significant loss of information. We first derive the exact mappings and then describe approximations which address the missing data problem for oblique sinograms. We evaluate the performance of approximate rebinning using Monte Carlo simulations. Our results show that rebinning into non TOF sinograms retains significant SNR advantages over sinograms collected without TOF information. |
| | |
Authors:
|
Sanghee Cho; Sangtae Ahn; Quanzheng Li; Richard M Leahy |
Related Documents
:
|
19004496 - Promoting food security and well-being among poor and hiv/aids affected households: les... 12662776 - Constrained neural approaches to quadratic assignment problems. 2690386 - Protocol for the comprehensive evaluation of building-associated illness. 18284796 - Advantages of soft versus hard constraints in self-modeling curve resolution problems. ... 2992036 - Herniography of femoral, obturator and perineal hernias. 18770096 - Linguistic aspects of australian aboriginal english. |
Publication Detail:
|
Type: Evaluation Studies; Journal Article; Research Support, N.I.H., Extramural Date: 2009-01-06 |
Journal Detail:
|
Title: Physics in medicine and biology Volume: 54 ISSN: 0031-9155 ISO Abbreviation: Phys Med Biol Publication Date: 2009 Feb |
Date Detail:
|
Created Date: 2009-01-09 Completed Date: 2009-04-08 Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 0401220 Medline TA: Phys Med Biol Country: England |
Other Details:
|
Languages: eng Pagination: 467-84 Citation Subset: IM |
Affiliation:
|
Signal and Image Processing Institute, University of Southern California, Los Angeles, CA 90089, USA. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Algorithms* Data Compression / methods Fourier Analysis Image Enhancement / methods* Image Interpretation, Computer-Assisted / methods* Imaging, Three-Dimensional / methods* Phantoms, Imaging Positron-Emission Tomography / instrumentation, methods* Reproducibility of Results Sensitivity and Specificity Signal Processing, Computer-Assisted* |
| Grant Support | |
ID/Acronym/Agency:
|
R01 EB000363/EB/NIBIB NIH HHS |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: A novel unidirectional intensity map segmentation method for step-and-shoot IMRT delivery with segme...
Next Document: Acute infectious encephalitis and pathogens coming from animals