2000 (and backfills for previous years) / DB reference years
PREV and NEXT link to numerically adjacent references for this DATABASE UPDATE.
CONTENTS links to the title list for this UPDATE's references.
Author Barker TM, Earwaker WJ, Lisle DA Institution Centre for Medical and Health Physics, Queensland University of Technology, Brisbane, Australia.
Source Australas Radiol 1994 May;38(2):106-11
Abstract A study was undertaken to determine the dimensional accuracy of anatomical replicas derived from X-ray 3D computed tomography (CT) images and produced using the rapid prototyping technique of stereolithography (SLA). A dry bone skull and geometric phantom were scanned, and replicas were produced. Distance measurements were obtained to compare the original objects and the resulting replicas. Repeated measurements between anatomical landmarks were used for comparison of the original skull and replica. Results for the geometric phantom demonstrate a mean difference of +0.47 mm, representing an accuracy of 97.7-99.12%. Measurements of the skull produced a range of absolute differences (maximum +4.62 mm, minimum +0.1 mm, mean +0.85 mm). These results support the use of SLA models of human anatomical structures in such areas as pre-operative planning of complex surgical procedures. For applications where higher accuracy is required, improvements can be expected by utilizing smaller pixel resolution in t he CT images. Stereolithographic models can now be confidently employed as accurate, three-dimensional replicas of complex, anatomical structures. XX