PMID- 19070219
OWN - NLM
STAT- MEDLINE
DCOM- 20090109
LR  - 20211020
IS  - 0094-2405 (Print)
IS  - 0094-2405 (Electronic)
IS  - 0094-2405 (Linking)
VI  - 35
IP  - 11
DP  - 2008 Nov
TI  - Fourier rebinning algorithm for inverse geometry CT.
PG  - 4857-62
AB  - Inverse geometry computed tomography (IGCT) is a new type of volumetric CT 
      geometry that employs a large array of x-ray sources opposite a smaller detector 
      array. Volumetric coverage and high isotropic resolution produce very large data 
      sets and therefore require a computationally efficient three-dimensional 
      reconstruction algorithm. The purpose of this work was to adapt and evaluate a 
      fast algorithm based on Defrise's Fourier rebinning (FORE), originally developed 
      for positron emission tomography. The results were compared with the average of 
      FDK reconstructions from each source row. The FORE algorithm is an order of 
      magnitude faster than the FDK-type method for the case of 11 source rows. In the 
      center of the field-of-view both algorithms exhibited the same resolution and 
      noise performance. FORE exhibited some resolution loss (and less noise) in the 
      periphery of the field-of-view. FORE appears to be a fast and reasonably accurate 
      reconstruction method for IGCT.
FAU - Mazin, Samuel R
AU  - Mazin SR
AD  - Department of Radiology, Stanford University, Stanford, California 94305, USA. 
      smazin@stanford.edu
FAU - Pele, Norbert J
AU  - Pele NJ
LA  - eng
GR  - R01 EB006837/EB/NIBIB NIH HHS/United States
GR  - R01 EB0006387/EB/NIBIB NIH HHS/United States
PT  - Journal Article
PT  - Research Support, N.I.H., Extramural
PT  - Research Support, Non-U.S. Gov't
PL  - United States
TA  - Med Phys
JT  - Medical physics
JID - 0425746
SB  - IM
MH  - *Algorithms
MH  - Fourier Analysis
MH  - Image Processing, Computer-Assisted/*methods
MH  - Phantoms, Imaging
MH  - Time Factors
MH  - Tomography, X-Ray Computed/*methods
PMC - PMC2673599
EDAT- 2008/12/17 09:00
MHDA- 2009/01/10 09:00
PMCR- 2009/11/01
CRDT- 2008/12/17 09:00
PHST- 2008/12/17 09:00 [entrez]
PHST- 2008/12/17 09:00 [pubmed]
PHST- 2009/01/10 09:00 [medline]
PHST- 2009/11/01 00:00 [pmc-release]
AID - 017811MPH [pii]
AID - 10.1118/1.2986155 [doi]
PST - ppublish
SO  - Med Phys. 2008 Nov;35(11):4857-62. doi: 10.1118/1.2986155.