Volumetric quantification of bone-implant contact using micro-computed tomography analysis based on region-based segmentation
Imaging Science in Dentistry
;
: 7-13, 2015.
Artigo
em Inglês
| WPRIM
| ID: wpr-221774
ABSTRACT
PURPOSE:
We have developed a new method of segmenting the areas of absorbable implants and bone using region-based segmentation of micro-computed tomography (micro-CT) images, which allowed us to quantify volumetric bone-implant contact (VBIC) and volumetric absorption (VA). MATERIALS ANDMETHODS:
The simple threshold technique generally used in micro-CT analysis cannot be used to segment the areas of absorbable implants and bone. Instead, a region-based segmentation method, a region-labeling method, and subsequent morphological operations were successively applied to micro-CT images. The three-dimensional VBIC and VA of the absorbable implant were then calculated over the entire volume of the implant. Two-dimensional (2D) bone-implant contact (BIC) and bone area (BA) were also measured based on the conventional histomorphometric method.RESULTS:
VA and VBIC increased significantly with as the healing period increased (p<0.05). VBIC values were significantly correlated with VA values (p<0.05) and with 2D BIC values (p<0.05).CONCLUSION:
It is possible to quantify VBIC and VA for absorbable implants using micro-CT analysis using a region-based segmentation method.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Processamento de Imagem Assistida por Computador
/
Osseointegração
/
Implantes Absorvíveis
/
Absorção
/
Microtomografia por Raio-X
Idioma:
Inglês
Revista:
Imaging Science in Dentistry
Ano de publicação:
2015
Tipo de documento:
Artigo
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