Can the average glandular dose in routine digital mammography screening be reduced? A pilot study using revised image quality criteria.
There is a need for tools that in a simple way can be used for the evaluation of image quality related to clinical requirements in mammography. The aim of this work was to adjust the present European image quality criteria to be relevant also for digital mammography images, and to use as simple and as few criteria as possible. A pilot evaluation of the new set of criteria was made with mammograms of 28 women from a General Electric Senographe 2000D full-field digital mammography system. One breast was exposed using the standard automatic exposure mode, the other using about half of that absorbed dose. Three experienced radiologists evaluated the images using visual grading analysis technique. The results indicate that the new quality criteria can be used for the evaluation of image quality related to clinical requirements in digital mammography in a simple way. The results also suggest that absorbed doses for the mammography system used may be substantially reduced.
Hemdal
B
B
Department of Medical Radiation Physics, Lund University, Malmö University Hospital, SE-205 02 Malmö, Sweden. bengt.hemdal@rfa.mas.lu.se
Andersson
I
I
Grahn
A
A
Håkansson
M
M
Ruschin
M
M
Thilander-Klang
A
A
Båth
M
M
Börjesson
S
S
Medin
J
J
Tingberg
A
A
Månsson
L G
LG
Mattsson
S
S
D000368:Aged; D001940:Breast / Q000473:pathology; D005060:Europe; D005260:Female; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008327:Mammography / Q000295:instrumentation* / Q000379:methods* / Q000592:standards; D008875:Middle Aged; D010865:Pilot Projects; D011829:Radiation Dosage; D011856:Radiographic Image Enhancement; D011857:Radiographic Image Interpretation, Computer-Assisted / Q000379:methods*; D011874:Radiometry; D014963:X-Ray Intensifying Screens