Mammography with synchrotron radiation: phase-detection techniques.
The authors evaluated the effect on mammographic examinations of the use of synchrotron radiation to detect phase-perturbation effects, which are higher than absorption effects for soft tissue in the energy range of 15-25 keV. Detection of phase-perturbation effects was possible because of the high degree of coherence of synchrotron radiation sources. Synchrotron radiation images were obtained of a mammographic phantom and in vitro breast tissue specimens and compared with conventional mammographic studies. On the basis of grades assigned by three reviewers, image quality of the former was considerably higher, and the delivered dose was fully compatible.
Arfelli
F
F
Depart of Physics, Università di Trieste, Italy.
Bonvicini
V
V
Bravin
A
A
Cantatore
G
G
Castelli
E
E
Palma
L D
LD
Michiel
M D
MD
Fabrizioli
M
M
Longo
R
R
Menk
R H
RH
Olivo
A
A
Pani
S
S
Pontoni
D
D
Poropat
P
P
Prest
M
M
Rashevsky
A
A
Ratti
M
M
Rigon
L
L
Tromba
G
G
Vacchi
A
A
Vallazza
E
E
Zanconati
F
F
D000042:Absorption; D001940:Breast / Q000528:radiation effects; D005260:Female; D006801:Humans; D008327:Mammography / Q000295:instrumentation / Q000379:methods*; D015588:Observer Variation; D019047:Phantoms, Imaging; D011829:Radiation Dosage; D011856:Radiographic Image Enhancement / Q000295:instrumentation / Q000379:methods; D012542:Scattering, Radiation; D017356:Synchrotrons; D013997:Time Factors; D014961:X-Ray Diffraction / Q000295:instrumentation; D014962:X-Ray Film; D014963:X-Ray Intensifying Screens; D014965:X-Rays