[Comparison of four digital and one conventional radiographic image systems for the chest in a patient study with subsequent system optimization]
- PMID: 15666237
- DOI: 10.1055/s-2004-813897
[Comparison of four digital and one conventional radiographic image systems for the chest in a patient study with subsequent system optimization]
Abstract
Purpose: Using a patient study to prove the clinical relevance of a comparison of five different radiographic systems for the chest conducted with an anthropomorphic chest phantom. Depending on the results, it was tested whether the performance of a modern digital system with a transparent imaging plate can be improved by changing the post-processing of the image.
Method: Chest radiographs of patients were taken with a CsI/aSi-flat panel detector (FDR), transparent imaging plate (tDLR), selenium drum detector (DSR), conventional storage phosphor plate (DLR) and asymmetrical screen-film-system (aFFS), and compared using image criteria scoring (ICS) and visual grading analysis (VGA) for anatomical structures (modified criterions of the EUR 16 260 EN guidelines). After optimizing the post processing, the images of the tDLR-system were evaluated once more in a phantom ROC study and patient VGA study.
Results: The flat panel detector-system proved to meet best the anatomical image quality criteria, followed by DSR, tDLR, aFFS and DLR. The modified post processing of the tDLR-images resulted in a significantly better detection of simulated pathological lung-structures, but improved the perceptibility of anatomical structures only slightly.
Conclusions: The results of the patient VGA study and the phantom ROC study are similar and considered valid. The new digital imaging systems with flat panel detector and transparent imaging plate provide the best image quality of the tested radiographic devices for chest imaging, assuming that all system components are attuned and optimized for the type of structure to be detected. Image processing is of primary importance for system optimization.
Similar articles
-
[Chest radiography: ROC phantom study of four different digital systems and one conventional radiographic system].Rofo. 2003 Jan;175(1):38-45. doi: 10.1055/s-2003-36609. Rofo. 2003. PMID: 12525979 German.
-
Assessment and optimisation of the image quality of chest-radiography systems.Radiat Prot Dosimetry. 2005;114(1-3):264-8. doi: 10.1093/rpd/nch559. Radiat Prot Dosimetry. 2005. PMID: 15933119
-
[ROC analysis in post-processing of image data in digital thoracic radiography].Rofo. 1995 Feb;162(2):163-9. doi: 10.1055/s-2007-1015854. Rofo. 1995. PMID: 7881085 German.
-
[New analog and digital imaging techniques for chest diagnosis--principles--clinical value--economics].Aktuelle Radiol. 1993 Jan;3(1):6-13. Aktuelle Radiol. 1993. PMID: 8448232 Review. German.
-
Digital chest radiography.Clin Chest Med. 1991 Mar;12(1):19-32. Clin Chest Med. 1991. PMID: 2009743 Review.
Cited by
-
Digital chest radiography: an update on modern technology, dose containment and control of image quality.Eur Radiol. 2008 Sep;18(9):1818-30. doi: 10.1007/s00330-008-0948-3. Epub 2008 Apr 23. Eur Radiol. 2008. PMID: 18431577 Free PMC article. Review.
-
Feasibility of lung cancer screening in developing countries: challenges, opportunities and way forward.Transl Lung Cancer Res. 2019 May;8(Suppl 1):S106-S121. doi: 10.21037/tlcr.2019.03.03. Transl Lung Cancer Res. 2019. PMID: 31211111 Free PMC article. Review.
Publication types
MeSH terms
LinkOut - more resources
Full Text Sources
Research Materials