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3-D analysis of left ventricle dynamics

Gutierrez, M.A. ; Moura, L. ; Meneghetti, C. ; Melo, C.P. ; Alens, N.

Computers in Cardiology 1994, 1994, p.201-204

IEEE Comput. Soc. Press

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  • Título:
    3-D analysis of left ventricle dynamics
  • Autor: Gutierrez, M.A. ; Moura, L. ; Meneghetti, C. ; Melo, C.P. ; Alens, N.
  • Assuntos: Biomedical optical imaging ; Brightness ; Equations ; Heart ; Image motion analysis ; Nonlinear filters ; Nuclear medicine ; Optical computing ; Optical filters ; Vectors
  • É parte de: Computers in Cardiology 1994, 1994, p.201-204
  • Descrição: Describes a method which quantifies 3D LV motion by means of the optical flow technique extended to the voxel space. Motion is represented by a 3D velocity vector field which is computed for each voxel on the series of cardiac volumes. The algorithm developed has two steps: (1) the spatial and temporal derivatives of the 3D image brightness are computed, after the cardiac volumes have been convolved with a symmetrical Gaussian function filter; (2) The optical flow is computed as the solution to a linear algebraic system of equations whose coefficients are determined by the derivatives that were computed in (1). The velocity vector field estimated from a sequence of 3D images has been computed for normal and infarcted hearts obtained at InCor's Nuclear Medicine Department.< >
  • Editor: IEEE Comput. Soc. Press
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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