RT Journal Article
SR Electronic
T1 CT-generated porous hydroxyapatite orbital floor prosthesis as a prototype bioimplant.
JF American Journal of Neuroradiology
JO Am. J. Neuroradiol.
FD American Society of Neuroradiology
SP 1522
OP 1525
VO 18
IS 8
A1 Levy, R A
A1 Chu, T M
A1 Halloran, J W
A1 Feinberg, S E
A1 Hollister, S
YR 1997
UL http://www.ajnr.org/content/18/8/1522.abstract
AB Hydroxyapatite bioceramic was used for the manufacture of an orbital floor prosthesis from spiral CT data acquired transaxially at 1-mm beam collimation, pitch of 1, and 0.2-mm reconstruction intervals. CT data were converted to vector file format for subsequent prosthesis manufacture on a stereo-lithography machine. The orbital floor prosthesis was engrafted onto an acrylic model of the orbit as a qualitative indication of its overall accuracy. High anatomic accuracy was achieved, as determined by visual inspection. Cross-hatching of the vector file data allowed a porous internal architecture of the prosthesis. Refinements in chemical structure of the hydroxyapatite bioceramic are expected to enhance mechanical properties.