DocumentCode :
2507891
Title :
Rapid production of an in vitro anatomical model of human cerebral arteries based on CT images
Author :
Arai, Fumihito ; Fukuda, Toshio ; Ikeda, Seiichi ; Negoro, Makoto ; Takahashi, Ikuo
Author_Institution :
Dept. of Micro Syst. Eng., Nagoya Univ., Japan
fYear :
2002
fDate :
2002
Firstpage :
41
Lastpage :
46
Abstract :
A rapid production technique of an in vitro model of the human cerebral arteries based on CT scanning is presented. A 3-dimensional image of the cerebral arteries was first obtained using 3-dimensional modeling techniques. Then, a solid wax model of the cerebral arteries was rapid-prototyped with heat-melting and solvent-melting material, and embedded within liquid silicone elastomer solidifying into solid blocks. After the evacuation of the wax model following selective dissolution by heating and using the relevant solvent, a model consisting of a hollow reproduction of the wax model within the silicone block is finally obtained. This model is anatomically accurate for each individual arterial structure, and can be made in a short time without invading a living human. With the proposed technique, arteries with very complicated or high aspect structures are easily reproducible. With our technique, secondary modifications of the arterial configuration may be produced in two different manners, by modifying the corresponding part of the 3-dimensional image, or directly modifying the rapid prototyped model. These techniques are also presented. Since the arterial model presented is transparent to visible light, and gives human-like elasticity and lubrication, by using silicone elastomer as the model material, it should prove useful for a wide range of applications, such as diagnoses, surgical trials prior to practical operation and experimental investigations.
Keywords :
CAD; biomechanics; blood vessels; brain models; computerised tomography; elasticity; elastomers; lubrication; medical image processing; rapid prototyping (industrial); silicone rubber; surgery; 3-dimensional image; 3-dimensional modeling techniques; CT images; CT scanning; arterial configuration; diagnoses; heat-melting material; high aspect structures; hollow reproduction; human cerebral arteries; human-like elasticity; in vitro anatomical model; intravascular neurosurgery; liquid silicone elastomer; lubrication; rapid production; rapid production technique; rapid prototyped solid wax model; secondary modifications; selective dissolution; silicone block; silicone elastomer; solid blocks; solvent-melting material; surgical trials; very complicated structures; visible light; Arteries; Computed tomography; Elasticity; Heating; Humans; In vitro; Production; Prototypes; Solid modeling; Solvents;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Micromechatronics and Human Science, 2002. MHS 2002. Proceedings of 2002 International Symposium on
Print_ISBN :
0-7803-7611-0
Type :
conf
DOI :
10.1109/MHS.2002.1058009
Filename :
1058009
Link To Document :
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