uu.seUppsala University Publications
Change search
ReferencesLink to record
Permanent link

Direct link
Patient specific biomodel of the whole aorta: the importance of calcified plaque removal
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Radiology, Oncology and Radiation Science, Radiology.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Vascular Surgery.
2011 (English)In: VASA, ISSN 0301-1526, Vol. 40, no 6, 453-459 p.Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
2011. Vol. 40, no 6, 453-459 p.
National Category
Medical and Health Sciences
URN: urn:nbn:se:uu:diva-164865DOI: 10.1024/0301-1526/a000148ISI: 000298059300006PubMedID: 22090178OAI: oai:DiVA.org:uu-164865DiVA: diva2:470468
Available from: 2011-12-29 Created: 2011-12-29 Last updated: 2012-03-12Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textPubMedhttp://www.verlag-hanshuber.com/zeitschriften/journal.php?abbrev=VAS&show=abstract&abstract=32929

Search in DiVA

By author/editor
Hansen, TomasWanhainen, Anders
By organisation
RadiologyVascular Surgery
In the same journal
Medical and Health Sciences

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 163 hits
ReferencesLink to record
Permanent link

Direct link