Improvements in the field of radiological imaging at the SYRMEP beamline

Fulvia Arfelli; Valter Bonvicini; Alberto Bravin; Giovanni Cantatore; Edoardo Castelli; Ludovico Dalla Palma; Renata Longo; Ralf-Hendrik Menk; Alessandro Olivo; Silvia Pani; Paolo Poropat; Michela Prest; Alexander Rashevsky; Luigi Rigon; Giuliana Tromba; Andrea Vacchi; E. Vallazza

doi:10.1117/12.368168

6 October 1999 Improvements in the field of radiological imaging at the SYRMEP beamline

Fulvia Arfelli, Valter Bonvicini, Alberto Bravin, Giovanni Cantatore, Edoardo Castelli, Ludovico Dalla Palma, Renata Longo, Ralf-Hendrik Menk, Alessandro Olivo, Silvia Pani, Paolo Poropat, Michela Prest, Alexander Rashevsky, Luigi Rigon, Giuliana Tromba, Andrea Vacchi, E. Vallazza

Author Affiliations +

Proceedings Volume 3770, Medical Applications of Penetrating Radiation; (1999) https://doi.org/10.1117/12.368168
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1999, Denver, CO, United States

Abstract

One major goal of modern radiology is the improvement of image quality and subsequently the development of sophisticated radiographic methods which are capable of detecting low contrast and small size details in organic samples in particular in mammography where the requirements on contrast resolution and spatial resolution are extremely high. Significant improvements in image quality have been achieved by the SYRMEP (SYnchrotron Radiation for MEdical Physics) collaboration which has designed and built a beamline devoted to medical physics at the synchrotron radiation facility ELETTRA in Trieste (Italy). The detection system developed for digital mammography consists of a silicon pixel detector with a pixel size of 200 X 300 micrometers ² used in the `edge on' configuration in order to achieve a high conversion efficiency. The detector is equipped with a low noise VLSI amplifier chain; at present. Recently, a multilayer detector prototype has been implemented, consisting of a stack of three single silicon strip layers. This set-up provides a larger sensitive area and subsequently a reduction of the exposure time. Digital images of mammographic phantoms and of in vitro full breast tissue samples show a higher contrast resolution and lower absorbed dose when compared to conventional mammographic images. Besides, further promising studies have been initiated developing novel imaging methods based on the phase effects evidenced by the high degree of coherence of the SR source. At the SYRMEP beamline several experiments have been carried out in order to exploit the potentials of two different techniques, Phase Contrast and Diffraction Enhanced Imaging, respectively. Images showing better detail visibility and enhanced contrast were produced with dose lower or comparable to the conventional one.

Citation Download Citation

Fulvia Arfelli, Valter Bonvicini, Alberto Bravin, Giovanni Cantatore, Edoardo Castelli, Ludovico Dalla Palma, Renata Longo, Ralf-Hendrik Menk, Alessandro Olivo, Silvia Pani, Paolo Poropat, Michela Prest, Alexander Rashevsky, Luigi Rigon, Giuliana Tromba, Andrea Vacchi, and E. Vallazza "Improvements in the field of radiological imaging at the SYRMEP beamline", Proc. SPIE 3770, Medical Applications of Penetrating Radiation, (6 October 1999); https://doi.org/10.1117/12.368168

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available