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Digital radiography: optimization of image quality and dose using multi-frequency software

Precht, Helle; Gerke, Ole; Rosendahl, Karin; Tingberg, Anders LU and Waaler, Dag (2012) In Pediatric Radiology 42(9). p.1112-1118
Abstract
BACKGROUND: New developments in processing of digital radiographs (DR), including multi-frequency processing (MFP), allow optimization of image quality and radiation dose. This is particularly promising in children as they are believed to be more sensitive to ionizing radiation than adults. OBJECTIVE: To examine whether the use of MFP software reduces the radiation dose without compromising quality at DR of the femur in 5-year-old-equivalent anthropomorphic and technical phantoms. MATERIALS AND METHODS: A total of 110 images of an anthropomorphic phantom were imaged on a DR system (Canon DR with CXDI-50 C detector and MLT[S] software) and analyzed by three pediatric radiologists using Visual Grading Analysis. In addition, 3,500 images... (More)
BACKGROUND: New developments in processing of digital radiographs (DR), including multi-frequency processing (MFP), allow optimization of image quality and radiation dose. This is particularly promising in children as they are believed to be more sensitive to ionizing radiation than adults. OBJECTIVE: To examine whether the use of MFP software reduces the radiation dose without compromising quality at DR of the femur in 5-year-old-equivalent anthropomorphic and technical phantoms. MATERIALS AND METHODS: A total of 110 images of an anthropomorphic phantom were imaged on a DR system (Canon DR with CXDI-50 C detector and MLT[S] software) and analyzed by three pediatric radiologists using Visual Grading Analysis. In addition, 3,500 images taken of a technical contrast-detail phantom (CDRAD 2.0) provide an objective image-quality assessment. RESULTS: Optimal image-quality was maintained at a dose reduction of 61% with MLT(S) optimized images. Even for images of diagnostic quality, MLT(S) provided a dose reduction of 88% as compared to the reference image. Software impact on image quality was found significant for dose (mAs), dynamic range dark region and frequency band. CONCLUSION: By optimizing image processing parameters, a significant dose reduction is possible without significant loss of image quality. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Pediatric Radiology
volume
42
issue
9
pages
1112 - 1118
publisher
Springer
external identifiers
  • wos:000307717800010
  • scopus:84866740493
ISSN
1432-1998
DOI
10.1007/s00247-012-2385-3
language
English
LU publication?
yes
id
f143fbb7-cd71-47ff-b327-bf1f3f7a46e9 (old id 3045628)
date added to LUP
2012-12-17 11:51:54
date last changed
2017-01-01 07:51:23
@article{f143fbb7-cd71-47ff-b327-bf1f3f7a46e9,
  abstract     = {BACKGROUND: New developments in processing of digital radiographs (DR), including multi-frequency processing (MFP), allow optimization of image quality and radiation dose. This is particularly promising in children as they are believed to be more sensitive to ionizing radiation than adults. OBJECTIVE: To examine whether the use of MFP software reduces the radiation dose without compromising quality at DR of the femur in 5-year-old-equivalent anthropomorphic and technical phantoms. MATERIALS AND METHODS: A total of 110 images of an anthropomorphic phantom were imaged on a DR system (Canon DR with CXDI-50 C detector and MLT[S] software) and analyzed by three pediatric radiologists using Visual Grading Analysis. In addition, 3,500 images taken of a technical contrast-detail phantom (CDRAD 2.0) provide an objective image-quality assessment. RESULTS: Optimal image-quality was maintained at a dose reduction of 61% with MLT(S) optimized images. Even for images of diagnostic quality, MLT(S) provided a dose reduction of 88% as compared to the reference image. Software impact on image quality was found significant for dose (mAs), dynamic range dark region and frequency band. CONCLUSION: By optimizing image processing parameters, a significant dose reduction is possible without significant loss of image quality.},
  author       = {Precht, Helle and Gerke, Ole and Rosendahl, Karin and Tingberg, Anders and Waaler, Dag},
  issn         = {1432-1998},
  language     = {eng},
  number       = {9},
  pages        = {1112--1118},
  publisher    = {Springer},
  series       = {Pediatric Radiology},
  title        = {Digital radiography: optimization of image quality and dose using multi-frequency software},
  url          = {http://dx.doi.org/10.1007/s00247-012-2385-3},
  volume       = {42},
  year         = {2012},
}