A Linear Programming Approach to Limited Angle 3D Reconstruction from DSA Projections

Autor:	J. Hornegger, C. Schnörr, T. Schüle, S. Weber
Rok vydání:	2004
Předmět:	Advanced and Specialized Nursing Health Information Management Health Informatics
Zdroj:	Methods of Information in Medicine. 43:320-326
ISSN:	2511-705X 0026-1270
Popis:	Summary Objectives: We investigate the feasibility of binary-valued 3D tomographic reconstruction using only a small number of projections acquired over a limited range of angles. Methods: Regularization of this strongly ill-posed problem is achieved by (i) confining the reconstruction to binary vessel/non-vessel decisions, and (ii) by minimizing a global functional involving a smoothness prior. Results: Our approach successfully reconstructs volumetric vessel structures from three projections taken within 90°. The percentage of reconstructed voxels differing from ground truth is below 1%. Conclusion: We demonstrate that for particular applications – like Digital Subtraction Angiography – 3D reconstructions are possible where conventional methods must fail, due to a severely limited imaging geometry. This could play an important role for dose reduction and 3D reconstruction using non-conventional technical setups.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::928c72b670d1ec1ba2d46bb3977d2887 https://doi.org/10.1055/s-0038-1633875 Zobrazit plný text záznamu