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Title: An image quality comparison of standard and dual-side read CR systems for pediatric radiology

Abstract

An objective analysis of image quality parameters was performed for a computed radiography (CR) system using both standard single-side and prototype dual-side read plates. The pre-sampled modulation transfer function (MTF), noise power spectrum (NPS), and detective quantum efficiency (DQE) for the systems were determined at three different beam qualities representative of pediatric chest radiography, at an entrance detector air kerma of 5 {mu}Gy. The NPS and DQE measurements were realized under clinically relevant x-ray spectra for pediatric radiology, including x-ray scatter radiations. Compared to the standard single-side read system, the MTF for the dual-side read system is reduced, but this is offset by a significant decrease in image noise, resulting in a marked increase in DQE (+40%) in the low spatial frequency range. Thus, for the same image quality, the new technology permits the CR system to be used at a reduced dose level.

Authors:
; ; ; ; ; ;  [1];  [2];  [3];  [2];  [4];  [5]
  1. University Institute for Applied Radiophysics (IRA), 1007 Lausanne (Switzerland)
  2. (Inselspital), 3010 Bern (Switzerland)
  3. (Germany)
  4. (CHUV), 1011 Lausanne (Switzerland)
  5. (IRA), 1007 Lausanne (Switzerland)
Publication Date:
OSTI Identifier:
20775067
Resource Type:
Journal Article
Resource Relation:
Journal Name: Medical Physics; Journal Volume: 33; Journal Issue: 2; Other Information: DOI: 10.1118/1.2163392; (c) 2006 American Association of Physicists in Medicine; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
62 RADIOLOGY AND NUCLEAR MEDICINE; BIOMEDICAL RADIOGRAPHY; CHEST; COMPARATIVE EVALUATIONS; COMPUTERIZED TOMOGRAPHY; FREQUENCY RANGE; IMAGES; KERMA; NOISE; QUANTUM EFFICIENCY; RADIATION DOSES; X RADIATION; X-RAY SPECTRA

Citation Formats

Monnin, P., Holzer, Z., Wolf, R., Neitzel, U., Vock, P., Gudinchet, F., Verdun, F.R., Institute for Paediatric Radiology-University Hospital of Bern, Philips Medical Systems DMC GmbH, 22335 Hamburg, Institute for Paediatric Radiology-University Hospital of Bern, University Hospital Center, and University Institute for Applied Radiophysics. An image quality comparison of standard and dual-side read CR systems for pediatric radiology. United States: N. p., 2006. Web. doi:10.1118/1.2163392.
Monnin, P., Holzer, Z., Wolf, R., Neitzel, U., Vock, P., Gudinchet, F., Verdun, F.R., Institute for Paediatric Radiology-University Hospital of Bern, Philips Medical Systems DMC GmbH, 22335 Hamburg, Institute for Paediatric Radiology-University Hospital of Bern, University Hospital Center, & University Institute for Applied Radiophysics. An image quality comparison of standard and dual-side read CR systems for pediatric radiology. United States. doi:10.1118/1.2163392.
Monnin, P., Holzer, Z., Wolf, R., Neitzel, U., Vock, P., Gudinchet, F., Verdun, F.R., Institute for Paediatric Radiology-University Hospital of Bern, Philips Medical Systems DMC GmbH, 22335 Hamburg, Institute for Paediatric Radiology-University Hospital of Bern, University Hospital Center, and University Institute for Applied Radiophysics. Wed . "An image quality comparison of standard and dual-side read CR systems for pediatric radiology". United States. doi:10.1118/1.2163392.
@article{osti_20775067,
title = {An image quality comparison of standard and dual-side read CR systems for pediatric radiology},
author = {Monnin, P. and Holzer, Z. and Wolf, R. and Neitzel, U. and Vock, P. and Gudinchet, F. and Verdun, F.R. and Institute for Paediatric Radiology-University Hospital of Bern and Philips Medical Systems DMC GmbH, 22335 Hamburg and Institute for Paediatric Radiology-University Hospital of Bern and University Hospital Center and University Institute for Applied Radiophysics},
abstractNote = {An objective analysis of image quality parameters was performed for a computed radiography (CR) system using both standard single-side and prototype dual-side read plates. The pre-sampled modulation transfer function (MTF), noise power spectrum (NPS), and detective quantum efficiency (DQE) for the systems were determined at three different beam qualities representative of pediatric chest radiography, at an entrance detector air kerma of 5 {mu}Gy. The NPS and DQE measurements were realized under clinically relevant x-ray spectra for pediatric radiology, including x-ray scatter radiations. Compared to the standard single-side read system, the MTF for the dual-side read system is reduced, but this is offset by a significant decrease in image noise, resulting in a marked increase in DQE (+40%) in the low spatial frequency range. Thus, for the same image quality, the new technology permits the CR system to be used at a reduced dose level.},
doi = {10.1118/1.2163392},
journal = {Medical Physics},
number = 2,
volume = 33,
place = {United States},
year = {Wed Feb 15 00:00:00 EST 2006},
month = {Wed Feb 15 00:00:00 EST 2006}
}