Influence of threshold value of computed tomography on the accuracy of 3-dimensional medical model / 대한구강악안면방사선학회지
Korean Journal of Oral and Maxillofacial Radiology
;
: 27-33, 2002.
Artigo
em Coreano
| WPRIM
| ID: wpr-125567
ABSTRACT
PURPOSE:
To evaluate the influence of threshold value of computed tomography on the accuracy of rapid prototyping (RP) medical model MATERIAL ANDMETHODS:
CT datas of a human dry skull were transferred from CT scanner via compact disk to a personal computer (PC). 3-dimensional image reconstruction on PC by V-works(TM) 3.0 (CyberMed. Inc.) software and RP models fabrication were followed. 2-RP models were produced by threshold value of 500 and 800 selected in surface rendering process. Linear measurements between arbitrary 12 anatomical landmarks on dry skull, 3-D image model, and 2-RP models were done and compared. Thus, the accuracy of 500 RP and 800RP models was respectively evaluated.RESULTS:
There was mean difference (% difference) in absolute value of 2.27 mm (2.73%) between linear measurements of dry skull and 500 RP model. There was mean difference (% difference) in absolute value of 1.94 mm(2.52%) between linear measurements of dry skull and 800 RP model.CONCLUSION:
Slight difference of threshold value in rendering process of 3-D modelling made a influence on the accuracy of RP medical model.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Crânio
/
Processamento de Imagem Assistida por Computador
/
Microcomputadores
/
Discos Compactos
/
Imageamento Tridimensional
Limite:
Humanos
Idioma:
Coreano
Revista:
Korean Journal of Oral and Maxillofacial Radiology
Ano de publicação:
2002
Tipo de documento:
Artigo
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