Scatter rejection in multislit digital mammography.
The scatter to primary ratio (SPR) was measured on a scanning multislit full-field digital mammography system for different thickness of breast equivalent material and different tube voltages. Scatter within the detector was measured separately and was found to be the major source of scatter in the assembly. Measured total SPRs below 6% are reported for breast range 3-7 cm. The performance of the multislit assembly is compared to other imaging geometries with different scatter rejection schemes by using the scatter detective quantum efficiency.
Aslund
Magnus
M
Department of Physics, Royal Institute of Technology, AlbaNova, 106 91, Stockholm, Sweden. aslund@particle.kth.se
Cederström
Björn
B
Lundqvist
Mats
M
Danielsson
Mats
M
D016477:Artifacts; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008327:Mammography / Q000295:instrumentation* / Q000379:methods; D019047:Phantoms, Imaging; D011856:Radiographic Image Enhancement / Q000295:instrumentation* / Q000379:methods; D015203:Reproducibility of Results; D012542:Scattering, Radiation; D012680:Sensitivity and Specificity; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*