3D reconstruction from truncated rotational angiograms using linear prediction

Ramesh R. Galigekere, David W. Holdsworth

Research output: Contribution to journalConference article

2 Citations (Scopus)

Abstract

For obtaining high-resolution reconstruction of the cerebral r vasculature, cone-beam projections in 3D computed rotational angiography (CRA) are acquired over a circular field of view (FOV) of 28 cm, resulting in a truncation of the data. This results in erroneous values of reconstruction within the region of interest that worsens laterally towards the periphery. In this paper, an application of linear prediction is explored for alleviating the effects of truncation in CRA, and its impact on image registration and also reprojection, an important tool in 3D visualization and image enhancement algorithms in CRA. New observations on the effects of taper in the extrapolated segment on filtered projections, and their implications on 3D reconstruction in CRA lead to windowed extrapolation. Results of the new algorithms on a mathematical phantom and real data are promising.

Original languageEnglish
Pages (from-to)126-133
Number of pages8
JournalLecture Notes in Computer Science
Volume2879
Issue numberPART 2
Publication statusPublished - 01-12-2003

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Linear Prediction
Angiography
3D Reconstruction
Truncation
Projection
3D Visualization
Image Enhancement
Image enhancement
Image registration
Image Registration
3D Image
Phantom
Region of Interest
Field of View
Extrapolation
Cones
Cone
High Resolution
Visualization

All Science Journal Classification (ASJC) codes

  • Theoretical Computer Science
  • Computer Science(all)

Cite this

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3D reconstruction from truncated rotational angiograms using linear prediction. / Galigekere, Ramesh R.; Holdsworth, David W.

In: Lecture Notes in Computer Science, Vol. 2879, No. PART 2, 01.12.2003, p. 126-133.

Research output: Contribution to journalConference article

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