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. 2016 Oct-Dec;15(4):308-311.
doi: 10.1590/1677-5449.005316.

Surface Length 3D: Plugin do OsiriX para cálculo da distância em superfícies

[Article in Portuguese]
Affiliations

Surface Length 3D: Plugin do OsiriX para cálculo da distância em superfícies

[Article in Portuguese]
Alexandre Campos Moraes Amato. J Vasc Bras. 2016 Oct-Dec.

Abstract

Abstract: Traditional DICOM medical imaging software offers several tools for measuring distance, area and volume. None allow measurement of distances between points along surfaces. The shortest path between points makes it possible to calculate distances between the ostia of vessels, useful in cases of aortic aneurysms and for assessment of visceral vessels for surgical planning. Developing a plugin for OsiriX for measurement of distances along surfaces proved to be achievable. The tool still needs to be validated.

Softwares tradicionais de avaliação de imagens médicas, como DICOM, possuem diversas ferramentas para mensuração de distância, área e volume. Nenhuma delas permite medir distâncias entre pontos em superfícies. O menor trajeto entre pontos possibilita o cálculo entre óstios de vasos, como no caso de aneurismas aórticos, e a avaliação dos vasos viscerais para planejamento cirúrgico. O desenvolvimento de um plugin para OsiriX para mensuração de distâncias em superfícies mostrou-se factível. A validação da ferramenta ainda se faz necessária.

PubMed Disclaimer

Conflict of interest statement

Conflito de interesse: O autor declara não haver conflitos de interesse que precisam ser informados.

Figures

Figura 1
Figura 1. Visualização tridimensional dos tracejados de superfície em modelo de superfície elaborados pelo plugin 3D Surface Length 3D e OsiriX.
Figura 2
Figura 2. (A) Representação bidimensional de corte transversal de vaso mostrando a diferença entre a medida linear e a medida de superfície; (B) Representação bidimensional de malha poligonal e algoritmo de cálculo de menor medida entre pontos.
Figura 3
Figura 3. Modelo esquemático apresentado pelo plugin dos pontos selecionados e da distância entre eles.
Figura 4
Figura 4. Exemplificação do uso da medida de superfície sobre estrutura óssea craniana.
Figure 1
Figure 1. Three-dimensional view of paths along surfaces on a surface model produced using the Surface Length 3D plugin and OsiriX.
Figure 2
Figure 2. (A) Two-dimensional cross-sectional representation of a vessel showing the difference between a linear measurement and a measurement along a surface; (B) Two-dimensional representation of a polygonal mesh and the algorithmic method for calculating the shortest distance between points.
Figure 3
Figure 3. Schematic model produced by the plugin of the points selected and the distance between them.
Figure 4
Figure 4. Example application of surface length plugin to measurement of bony structures of the skull.

References

    1. Amato AC, Benitti DA. Impact of continuing education in vascular images analysis for endovascular planning. J Vasc Bras. 2014;13(4):285–288. http://dx.doi.org/10.1590/1677-5449.0014 - DOI
    1. Amato AC, Benitti DA. The new age of endovascular surgery planning. J Vasc Bras. 2011;10(4):279–281.
    1. Rubin GD, Paik DS, Johnston PC, Napel S. Measurement of the aorta and its branches with helical CT. Radiology. 1998;206(3):823–829. http://dx.doi.org/10.1148/radiology.206.3.9494508 - DOI - PubMed
    1. Amato Software Surface Length 3D - OsiriX Plugin. site na Internet. citado 2016 dez 8. http://software.amato.com.br/content/surface-length-3d-osirix-plugin.
    1. Visualization Toolkit vtkDijkstraGraphGeodesicPath Class Reference. site na Internet. citado 2016 dez 8. http://www.vtk.org/doc/nightly/html/classvtkDijkstraGraphGeodesicPath.html.

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