Author/Authors :
Elleaume، نويسنده , , H. and Charvet، نويسنده , , A.M. and Berkvens، نويسنده , , P. and Berruyer، نويسنده , , G. and Brochard، نويسنده , , T. and Dabin، نويسنده , , Y. and Dominguez، نويسنده , , M.C. and Draperi، نويسنده , , A. and Fiedler، نويسنده , , S. and Goujon، نويسنده , , G. and Le Duc، نويسنده , , G. and Mattenet، نويسنده , , M. and Nemoz، نويسنده , , C. and Perez، نويسنده , , M. and Renier، نويسنده , , M. and Schulze، نويسنده , , C. a، نويسنده ,
Abstract :
At the European Synchrotron Radiation Facility (ESRF) a beamport has been instrumented for medical research programs. Two facilities have been constructed for alternative operation. The first one is devoted to medical imaging and is focused on intravenous coronary angiography and computed tomography (CT). The second facility is dedicated to pre-clinical microbeam radiotherapy (MRT). This paper describes the instrumentation for the imaging facility. Two monochromators have been designed, both are based on bent silicon crystals in the Laue geometry. A versatile scanning device has been built for pre-alignment and scanning of the patient through the X-ray beam in radiography or CT modes. An intrinsic germanium detector is used together with large dynamic range electronics (16 bits) to acquire the data. The beamline is now at the end of its commissioning phase; intravenous coronary angiography is intended to start in 1999 with patients and the CT pre-clinical program is underway on small animals. The first in vivo images obtained on animals in angiography and CT modes are presented to illustrate the performances of these devices.
Keywords :
MEDICAL IMAGING , angiography , Monochromatic beams , Synchrotron , computed tomography , Germanium detector
