Document Detail


Comparison between a built-in "dual side" chest imaging device and a standard "single side" CR.
MedLine Citation:
PMID:  17278497     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
An integrated readout computed radiography system (Fuji XU-D1) incorporating dual-side imaging plates (ST-55BD) was analyzed in terms of modulation transfer function (MTF), noise power spectrum (NPS), and detective quantum efficiency (DQE) for standard beam qualities RQA 9 and RQA 5. NPS and DQE were assessed using a detector entrance air kerma consistent with clinical practice for chest radiography. Similar investigation was performed on a standard reader (Fuji FCR 5000) using single-side imaging plates (ST-VI). Negligible differences were found between the MTFs of the two imaging systems for RQA 9, whereas for RQA 5 the single-side system exhibited slightly superior MTF. Regarding noise response, the dual-side system turned out to be better performing for both beam qualities over a wide range of frequencies. For RQA 9, at 8 microGy, the DQE of the dual-side system was moderately higher over the whole frequency range, whereas for RQA 5, at 10 microGy, significant improvement was found at low- and midrange frequencies. As an example, at 1 cycle/mm, the following improvements in the DQE of the dual-side system were observed: +22% (RQA 9, at 8 microGy), +50% (RQA 9, at 30 microGy), and +45% (RQA 5, at 10 microGy).
Authors:
Lucia Riccardi; Maria Cristina Cauzzo; Roberto Fabbris; Eugenia Tonini; Roberto Righetto
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Publication Detail:
Type:  Comparative Study; Evaluation Studies; Journal Article    
Journal Detail:
Title:  Medical physics     Volume:  34     ISSN:  0094-2405     ISO Abbreviation:  Med Phys     Publication Date:  2007 Jan 
Date Detail:
Created Date:  2007-02-06     Completed Date:  2007-02-28     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0425746     Medline TA:  Med Phys     Country:  United States    
Other Details:
Languages:  eng     Pagination:  119-26     Citation Subset:  IM    
Affiliation:
Struttura Complessa Interaziendale di Fisica Sanitaria, Azienda Ospedale Università di Padova, via Giustiniani 1, Padova, 35128 Italy.
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MeSH Terms
Descriptor/Qualifier:
Equipment Design
Equipment Failure Analysis
Humans
Radiographic Image Enhancement / instrumentation*,  methods
Radiography, Thoracic / instrumentation*,  methods
Reproducibility of Results
Sensitivity and Specificity
Tomography, X-Ray Computed / instrumentation*,  methods
X-Ray Intensifying Screens*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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