A euristic approach to the volume reconstruction of arteriovenous malformations from biplane angiography

Foroni, Roberto; Giri, M. G.; Gerosa, Massimo; Nicolato, A.; Piovan, E.; Zampieri, P. G.; Pasqualin, A.; Bortolazzi, E.; Pasoli, A.; Marchini, Giorgio; Barbighian, S.; Bricolo, Albino

doi:10.1159/000098773

Three-dimensional (3D) volume reconstruction is easily feasible with axial, coronal or sagittal CT and MRI scans. On the other hand, radiosurgical treatment of arteriovenous malformations (AVMs) is exclusively based on two orthogonal stereotactic projections, obtained with angiographic procedures. Most commonly AVM volumes have been calculated by assimilating the nidus volume to a prolate ellipsoid. We present an algorithm dedicated to 3D volume reconstruction starting from two stereotactic orthogonal projections. This has been achieved using a euristic approach which has been widely adopted in the artificial intelligence domain. Tests on phantoms of different complexity have shown excellent results. The importance of the algorithm is considerable. Firstly, it allows calculations of complex structures far removed from a regular ellipsoid. Secondly, it permits shape recovery. Thirdly, it provides AVM visualization on axial planes. © 1995 S. Karger AG, Basel.

Titolo:	A euristic approach to the volume reconstruction of arteriovenous malformations from biplane angiography
Autori:	FORONI, Roberto Giri M. G. GEROSA, Massimo Nicolato A. Piovan E. Zampieri P. G. Pasqualin A. Bortolazzi E. Pasoli A. MARCHINI, Giorgio S. Barbighian BRICOLO, Albino mostra contributor esterni nascondi contributor esterni
Data di pubblicazione:	1995
Rivista:	STEREOTACTIC AND FUNCTIONAL NEUROSURGERY
Abstract:	Three-dimensional (3D) volume reconstruction is easily feasible with axial, coronal or sagittal CT and MRI scans. On the other hand, radiosurgical treatment of arteriovenous malformations (AVMs) is exclusively based on two orthogonal stereotactic projections, obtained with angiographic procedures. Most commonly AVM volumes have been calculated by assimilating the nidus volume to a prolate ellipsoid. We present an algorithm dedicated to 3D volume reconstruction starting from two stereotactic orthogonal projections. This has been achieved using a euristic approach which has been widely adopted in the artificial intelligence domain. Tests on phantoms of different complexity have shown excellent results. The importance of the algorithm is considerable. Firstly, it allows calculations of complex structures far removed from a regular ellipsoid. Secondly, it permits shape recovery. Thirdly, it provides AVM visualization on axial planes. © 1995 S. Karger AG, Basel.
Handle:	http://hdl.handle.net/11562/14891
Appare nelle tipologie:	01.01 Articolo in Rivista

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