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POST-PROCESSING IMAGE FILTRATION ENABLING DOSE REDUCTION IN STANDARD ABDOMINAL CT.

Leander, Peter LU ; Söderberg, Marcus LU ; Fält, Tobias; Gunnarsson, Mikael LU and Albertsson, Ida (2010) In Radiation Protection Dosimetry Apr 7. p.180-185
Abstract
The collective effective radiation dose to the population is increasing due to a higher use of computerised tomography. SharpView AB, Linköping, Sweden, has developed an adaptive non-linear post-processing image filtration that may enable the use of lower radiation doses. The present study assessed if a lower dose with image filtration had the same image quality as a higher dose without the filter applied. All imaging was performed on a Siemens Somatom Sensation 16 CT. The parameters used were 120 kV and 200 mAs (40 patients) and 130 mAs without and with image filtering (40 patients), respectively. All studies were quantitatively evaluated for noise and image quality was assessed by visual grading characteristics (VGC) analysis. After... (More)
The collective effective radiation dose to the population is increasing due to a higher use of computerised tomography. SharpView AB, Linköping, Sweden, has developed an adaptive non-linear post-processing image filtration that may enable the use of lower radiation doses. The present study assessed if a lower dose with image filtration had the same image quality as a higher dose without the filter applied. All imaging was performed on a Siemens Somatom Sensation 16 CT. The parameters used were 120 kV and 200 mAs (40 patients) and 130 mAs without and with image filtering (40 patients), respectively. All studies were quantitatively evaluated for noise and image quality was assessed by visual grading characteristics (VGC) analysis. After image filtration, the noise in the processed images was lowered and the image quality was improved as shown by the VGC analysis. However, images using the higher dose were still ranked as the best in five out of eight criteria as shown by the VGC analysis. Image filtration enhances CT images significantly and further studies will show if 130 mAs with image filtration may be sufficient for clinically general abdominal CT. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Radiation Protection Dosimetry
volume
Apr 7
pages
180 - 185
publisher
Nuclear Technology Publishing
external identifiers
  • WOS:000277738200031
  • PMID:20207748
  • Scopus:77953350622
ISSN
1742-3406
DOI
10.1093/rpd/ncq086
language
English
LU publication?
yes
id
8ff7bc0a-e933-4e5e-86dc-ee60d2bb3122 (old id 1582500)
alternative location
http://www.ncbi.nlm.nih.gov/pubmed/20207748?dopt=Abstract
date added to LUP
2010-04-07 13:36:03
date last changed
2017-01-01 07:44:41
@article{8ff7bc0a-e933-4e5e-86dc-ee60d2bb3122,
  abstract     = {The collective effective radiation dose to the population is increasing due to a higher use of computerised tomography. SharpView AB, Linköping, Sweden, has developed an adaptive non-linear post-processing image filtration that may enable the use of lower radiation doses. The present study assessed if a lower dose with image filtration had the same image quality as a higher dose without the filter applied. All imaging was performed on a Siemens Somatom Sensation 16 CT. The parameters used were 120 kV and 200 mAs (40 patients) and 130 mAs without and with image filtering (40 patients), respectively. All studies were quantitatively evaluated for noise and image quality was assessed by visual grading characteristics (VGC) analysis. After image filtration, the noise in the processed images was lowered and the image quality was improved as shown by the VGC analysis. However, images using the higher dose were still ranked as the best in five out of eight criteria as shown by the VGC analysis. Image filtration enhances CT images significantly and further studies will show if 130 mAs with image filtration may be sufficient for clinically general abdominal CT.},
  author       = {Leander, Peter and Söderberg, Marcus and Fält, Tobias and Gunnarsson, Mikael and Albertsson, Ida},
  issn         = {1742-3406},
  language     = {eng},
  pages        = {180--185},
  publisher    = {Nuclear Technology Publishing},
  series       = {Radiation Protection Dosimetry},
  title        = {POST-PROCESSING IMAGE FILTRATION ENABLING DOSE REDUCTION IN STANDARD ABDOMINAL CT.},
  url          = {http://dx.doi.org/10.1093/rpd/ncq086},
  volume       = {Apr 7},
  year         = {2010},
}