The threshold contrast thickness evaluated with different CDMAM phantoms and software

• Autorzy: Fabiszewska E. , Grabska I. , Pasicz K.

Identyfikatory

DOI

10.1515/nuka-2016-0004

• Konferencja: Proceedings of the Warsaw Medical Physics Meeting 2014 (2014 ; 15-17 May ; Warsaw, Poland)
• Języki publikacji: EN

Abstrakty

EN

The image quality in digital mammography is described by specifying the thickness and diameter of disks with threshold visibility. The European Commission recommends the CDMAM phantom as a tool to evaluate threshold contrast visibility in digital mammography [1, 2]. Inaccuracy of the manufacturing process of CDMAM 3.4 phantoms (Artinis Medical System BV), as well as differences between software used to analyze the images, may lead to discrepancies in the evaluation of threshold contrast visibility. The authors of this work used three CDMAM 3.4 phantoms with serial numbers 1669, 1840, and 1841 and two mammography systems of the same manufacturer with an identical types of detectors. The images were analyzed with EUREF software (version 1.5.5 with CDCOM 1.6. exe fi le) and Artinis software (version 1.2 with CDCOM 1.6. exe fi le). The differences between the observed thicknesses of the threshold contrast structures, which were caused by differences between the CDMAM 3.4 phantoms, were not reproduced in the same way on two mammography units of the same type. The thickness reported by the Artinis software (version 1.2 with CDCOM 1.6. exe fi le) was generally greater than the one determined by the EUREF software (version 1.5.5 with CDCOM 1.6. exe fi le), but the ratio of the results depended on the phantom and diameter of the structure. It was not possible to establish correction factors, which would allow correction of the differences between the results obtained for different CDMAM 3.4 phantoms, or to correct the differences between software. Great care must be taken when results of the tests performed with different CDMAM 3.4 phantoms and with different software application are interpreted.

Słowa kluczowe

EN

CDMAM phantom; digital mammography; threshold visibility

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2016
• Tom: Vol. 61, No. 1
• Strony: 53--59
• Opis fizyczny: Bibliogr. 13 poz., rys.

Twórcy

autor

Fabiszewska E.

• Medical Physics Department, The Maria Skłodowska-Curie Memorial Cancer Center and Institute of Oncology, 5 W. K. Roentgena Str., 02-781 Warsaw, Poland, Tel.: [phone], Fax: [phone]

autor

Grabska I.

• Medical Physics Department, The Maria Skłodowska-Curie Memorial Cancer Center and Institute of Oncology, 5 W. K. Roentgena Str., 02-781 Warsaw, Poland, Tel.: [phone], Fax: [phone]

autor

Pasicz K.

• Medical Physics Department, The Maria Skłodowska-Curie Memorial Cancer Center and Institute of Oncology, 5 W. K. Roentgena Str., 02-781 Warsaw, Poland, Tel.: [phone], Fax: [phone]

Bibliografia

• 1. European Communities. (2006). European guidelines for quality assurance in breast cancer screening and diagnosis. 4th ed. Luxembourg: Office for Official Publications of the European Communities.
• 2. European Communities. (2013). European guidelines for quality assurance in breast cancer screening and diagnosis. Fourth edition Supplements. Luxembourg: Office for Official Publications of the European Communities.
• 3. Young, K. C., Cook, J. J. H., & Oduko, J. M. (2006). Comparison of software and human observers in reading images of the CDMAM test object to assess digital mammography systems. In M. J. Flynn, & J. Hsieh (Eds.), Medical Imaging 2006: Physics of medical imaging. Proceedings of SPIE (vol. 6142), 614206-7.614206. DOI: 10.1117/12.653296.
• 4. de las Heras, H., Schöfer, F., & Tiller, B. (2013). A phantom using titanium and Landolt rings for image quality evaluation in mammography. Phys. Med. Biol., 58(8), L17–L30. DOI: 10.1088/0031-9155/58/8/L17.
• 5. BMU. (2012). Development of procedures for nondestructive quality control of phantoms that are used in quality assurance tests according to §16, paragraphs 2 and 3 of the German x-ray ordinance at x-ray systems used for examination of humans UFO-Plan Vorhaben 3608S20001. German Ministry for Environment, Nature Protection and Reactor Security. Braunschweig: PTB. (in German). Available from http://doris.bfs.de/jspui/handle/urn:nbn:de:0221-2012111310226/.
• 6. van der Burght, R., Thijssen, M., & Bijkerk, R. (2010) Manual contrast – detail phantom CDMAM type 3.4. The Netherlands: Artinis Medical Systems BV.
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• 10. Visser, R., & Karssemeijer, N. (2011). CDCOM Manual: software for automated readout of CDMAM 3.4 images. Nijmegen, The Netherlands: Radboud University.
• 11. Klein, S. A. (2001). Measuring, estimating, and understanding the psychometric function: A commentary. Percept. Psychophys., 63(8), 1421–1455.DOI: 10.3758/BF03194552.
• 12. Young, K. C., Brookes, E., Hudson, W., & Halling-Brown, M. D. (2012). CDMAM Analyser: Software and instruction manual for automated determination of threshold contrast. Version 1.5.5. Guildford: National Co-ordinating Centre for the Physics of Mammography.
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Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.