Patient specific biomodel of the whole aorta [Elektronisk resurs] the importance of calcified plaque removal
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Håkansson, Anders (författare)
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Rantatalo, Matti (författare)
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Wanhainen, Anders (författare)
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Hansen, Tomas (författare)
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Luleå tekniska universitet Institutionen för ekonomi, teknik och samhälle (utgivare)
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Luleå tekniska universitet Institutionen för samhällsbyggnad och naturresurser (utgivare)
- 2011
- Engelska.
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Ingår i: VASA. - 0301-1526. ; 40:6, 453-459
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Sammanfattning
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- Background: The use of anatomical models produced by 3D printing technique (rapid prototyping, RP) is gaining increased acceptance as a complementary tool for planning complex surgical interventions. This paper describes a method for creating a patient specific replica of the whole aorta. Methods: Computed tomography angiography (CTA) DICOM-data was converted to a three-dimensional computer aided design-model (CAD) of the inner wall of the aorta representing the lumen where the calcified plaque contribution was removed in a multi-step editing-manoeuvre. The edited CAD-model was used for creating a physical plaster model of the true lumen in a 3D-printer. Elastic and transparent silicon was applied onto the plaster model, which was then removed leaving a silicon replica of the aorta. Results: The median (interquartile range) difference between diameters obtained from CTA- and RP plaster-model at 19 predefined locations was 0.5 mm (1 mm) which corresponds to a relative median difference of 4.6% (7.0%). The average wall thickness of the silicone model was 3.5 mm. The elasticity property and performance during intervention was good with an acceptable transparency. Conclusions: The integration of RP-techniques with CAD based reconstruction of 3D-medical imaging data provides the needed tools for making a truly patient specific replica of the whole aorta with high accuracy. Plaque removal postprocessing is necessary to obtain a true inner wall configuration.
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- Engineering and Technology (hsv)
- Other Engineering and Technologies (hsv)
- Other Engineering and Technologies not elsewhere specified (hsv)
- Teknik och teknologier (hsv)
- Annan teknik (hsv)
- Övrig annan teknik (hsv)
- Engineering and Technology (hsv)
- Civil Engineering (hsv)
- Other Civil Engineering (hsv)
- Teknik och teknologier (hsv)
- Samhällsbyggnadsteknik (hsv)
- Annan samhällsbyggnadsteknik (hsv)
- Industrial Design (ltu)
- Industriell design (ltu)
- Drift och underhållsteknik (ltu)
- Operation and Maintenance (ltu)
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