Journal of Medical Physics
ORIGINAL ARTICLE
Year
: 2011  |  Volume : 36  |  Issue : 3  |  Page : 138--146

Performance evaluation of three computed radiography systems using methods recommended in American Association of Physicists in Medicine Report 93


Wilbroad Muhogora1, Renato Padovani2, Faustino Bonutti2, Peter Msaki3, R Kazema4 
1 Tanzania Atomic Energy Commission, Arusha, Tanzania
2 Fisica Sanitaria, Ospedale Universitario, P.le Santa Maria della Misericordia 15, 33100, Udine, Italy
3 Department of Physics, University of Dar es Salaam, P.O. Box 35063 Dar es Salaam, Tanzania
4 Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania

Correspondence Address:
Wilbroad Muhogora
Tanzania Atomic Energy Commission, P. O. Box 743 Arusha
Tanzania

The performances of three clinical computed radiography (CR) systems, (Agfa CR 75 (with CRMD 4.0 image plates), Kodak CR 850 (with Kodak GP plates) and Kodak CR 850A (with Kodak GP plates)) were evaluated using six tests recommended in American Association of Physicists in Medicine Report 93. The results indicated variable performances with majority being within acceptable limits. The variations were mainly attributed to differences in detector formulations, plate readers«SQ» characteristics, and aging effects. The differences of the mean low contrast scores between the imaging systems for three observers were statistically significant for Agfa and Kodak CR 850A (P=0.009) and for Kodak CR systems (P=0.006) probably because of the differences in ages. However, the differences were not statistically significant between Agfa and Kodak CR 850 (P=0.284) suggesting similar perceived image quality. The study demonstrates the need to implement quality control program regularly.


How to cite this article:
Muhogora W, Padovani R, Bonutti F, Msaki P, Kazema R. Performance evaluation of three computed radiography systems using methods recommended in American Association of Physicists in Medicine Report 93.J Med Phys 2011;36:138-146


How to cite this URL:
Muhogora W, Padovani R, Bonutti F, Msaki P, Kazema R. Performance evaluation of three computed radiography systems using methods recommended in American Association of Physicists in Medicine Report 93. J Med Phys [serial online] 2011 [cited 2019 Oct 16 ];36:138-146
Available from: http://www.jmp.org.in/article.asp?issn=0971-6203;year=2011;volume=36;issue=3;spage=138;epage=146;aulast=Muhogora;type=0