[Synchrotron radiation: a new source in x-ray mammography].
This work was aimed at evaluating the image quality obtainable in X-ray mammography using synchrotron radiation monochromatic lines. After a short review of the current mammographic techniques, the main features of synchroton radiation in the X-ray field are analyzed, especially of that emitted by the Adone storage ring. Its features are then compared with the radiation emitted by a Coolidge tube. The experimental unit used in this study, including beamline, monochromator and mammograph, is then described together with the experimental method for carrying out a series of experiments in the mammographic field employing both monochromatic lines (E = 17 keV) and white radiation from conventional sources. The first series of experiments is described, which employed standard phantoms: the dependence of resolution and contrast on both wavelength and thickness of breast specimens is reported. Several mammograms of neoplastic breast specimens were obtained after mastectomy: they were acquired using both synchrotron monochromatic lines and radiation emitted by a conventional tube and employing the same acquisition system. The comparison of the two series of images shows that synchrotron radiation can demonstrate a high number of anatomopathologic details with high definition, contrast and resolution which cannot be obtained by means of a conventional source. Our results appear very promising and suggest synchrotron radiation as the major tool in the early diagnosis of neoplastic breast lesions.
Burattini
E
E
Istituto di Radiologia, Facoltà di Medicina e Chirurgia, Università, Verona.
Gambaccini
M
M
Indovina
P L
PL
Pocek
M
M
Simonetti
G
G
D001943:Breast Neoplasms / Q000000981:diagnostic imaging; D004867:Equipment Design; D005260:Female; D006801:Humans; D008327:Mammography / Q000295:instrumentation*; D008961:Models, Structural; D011829:Radiation Dosage; D017356:Synchrotrons; D014963:X-Ray Intensifying Screens
La luce del sincrotrone: una nuova sorgente nella mammografia con raggi X.