Title :
Mapping lead distribution in bones by dual-energy computed microtomography with synchrotron radiation
Author :
Nogueira, Liebert P. ; Barroso, Regina Cély ; Pinheiro, Christiano J G ; Braz, Delson ; De Oliveira, Luis F. ; Tromba, Giuliana ; Sodini, Nicola
Author_Institution :
Nucl. Instrum. Lab./COPPE/UFRJ, Rio de Janeiro, Brazil
fDate :
Oct. 24 2009-Nov. 1 2009
Abstract :
We investigated the feasibility of the micro computed tomography dual-energy imaging to map of lead deposition inside bone. Femora of Wistar rats were imaged at the SYRMEP beamline at the ELETTRA synchrotron facility at Trieste, Italy, using two different energies, one just below (15.75 keV) and other just above (16.10 keV) the L-edge absorption energy of lead. By utilizing dual-energy micro-tomography the distribution-map of lead in the specimens was obtained. On the three-dimensional subtraction images, lead distribution could be clearly visualized over trabecular and cortical bone tissues.
Keywords :
X-ray apparatus; bone; computerised tomography; ELETTRA synchrotron facility; L-edge absorption energy; SYRMEP beamline; Wistar rats; cortical bone tissues; dual-energy computed microtomography; electron volt energy 15.75 keV; electron volt energy 16.10 keV; femora; lead distribution map; synchrotron radiation; three-dimensional subtraction images; trabecular bone tissues; Absorption; Biomedical imaging; Bones; Computed tomography; Distributed computing; Lead; Physics; Rats; Synchrotron radiation; X-ray imaging;
Conference_Titel :
Nuclear Science Symposium Conference Record (NSS/MIC), 2009 IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4244-3961-4
Electronic_ISBN :
1095-7863
DOI :
10.1109/NSSMIC.2009.5401790
