Exact 3D cone-beam reconstruction from projections obtained over a wobble trajectory on a c-arm

K. Ramamurthi; J. L. Prince; N. Strobel

Exact 3D cone-beam reconstruction from projections obtained over a wobble trajectory on a c-arm

K. Ramamurthi, J. L. Prince, N. Strobel

Whiting School of Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

We propose a source trajectory for cone-beam geometry that satisfies the conditions for exact 3D reconstruction in the largest sphere that remains non-truncated in the field of view of a given source detector combination. The source trajectory is a natural variation of the traditional circular source trajectory and is achieved by modulating the elevation of the source from the equatorial plane. We use a shift variant filtering approach in developing a filtered back-projection algorithm for robust, and computationally efficient volumetric reconstruction. The method is theoretically exact, and we show some results based upon simulation studies using a mathematical phantom.

Original language	English (US)
Title of host publication	2004 2nd IEEE International Symposium on Biomedical Imaging
Subtitle of host publication	Macro to Nano
Pages	932-935
Number of pages	4
State	Published - Dec 1 2004
Event	2004 2nd IEEE International Symposium on Biomedical Imaging: Macro to Nano - Arlington, VA, United States Duration: Apr 15 2004 → Apr 18 2004

Publication series

Name	2004 2nd IEEE International Symposium on Biomedical Imaging: Macro to Nano
Volume	1

Other

Other	2004 2nd IEEE International Symposium on Biomedical Imaging: Macro to Nano
Country	United States
City	Arlington, VA
Period	4/15/04 → 4/18/04

ASJC Scopus subject areas

Engineering(all)

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Exact 3D cone-beam reconstruction from projections obtained over a wobble trajectory on a c-arm. / Ramamurthi, K.; Prince, J. L.; Strobel, N.

2004 2nd IEEE International Symposium on Biomedical Imaging: Macro to Nano. 2004. p. 932-935 (2004 2nd IEEE International Symposium on Biomedical Imaging: Macro to Nano; Vol. 1).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Ramamurthi, K, Prince, JL & Strobel, N 2004, Exact 3D cone-beam reconstruction from projections obtained over a wobble trajectory on a c-arm. in 2004 2nd IEEE International Symposium on Biomedical Imaging: Macro to Nano. 2004 2nd IEEE International Symposium on Biomedical Imaging: Macro to Nano, vol. 1, pp. 932-935, 2004 2nd IEEE International Symposium on Biomedical Imaging: Macro to Nano, Arlington, VA, United States, 4/15/04.

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