Motion compensated fan-beam reconstruction for nonrigid transformation

Katsuyuki Taguchi; Hiroyuki Kudo

doi:10.1109/TMI.2008.925076

Motion compensated fan-beam reconstruction for nonrigid transformation

Katsuyuki Taguchi, Hiroyuki Kudo

School of Medicine

Research output: Contribution to journal › Article › peer-review

21 Scopus citations

Abstract

We develop an approximate fan-beam algorithm to reconstruct an object with time-dependent nonrigid transformation such as the heart. The method is in the form of derivative backprojection filtering with compensation of affine transformations on a local basis. Computer simulations showed the proposed method significantly reduces image artifact due to nonrigid motion. Therefore, with very little motion artifact, the proposed method allowed us to reconstruct images from projections over about one motion cycle, resulting in reduced image noise level down to 40% of the current level.

Original language	English (US)
Article number	4520153
Pages (from-to)	907-917
Number of pages	11
Journal	IEEE transactions on medical imaging
Volume	27
Issue number	7
DOIs	https://doi.org/10.1109/TMI.2008.925076
State	Published - Jul 2008

Keywords

Computed tomography (CT)
Motion compensation

ASJC Scopus subject areas

Software
Radiological and Ultrasound Technology
Computer Science Applications
Electrical and Electronic Engineering

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10.1109/TMI.2008.925076

Cite this

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title = "Motion compensated fan-beam reconstruction for nonrigid transformation",

abstract = "We develop an approximate fan-beam algorithm to reconstruct an object with time-dependent nonrigid transformation such as the heart. The method is in the form of derivative backprojection filtering with compensation of affine transformations on a local basis. Computer simulations showed the proposed method significantly reduces image artifact due to nonrigid motion. Therefore, with very little motion artifact, the proposed method allowed us to reconstruct images from projections over about one motion cycle, resulting in reduced image noise level down to 40% of the current level.",

keywords = "Computed tomography (CT), Motion compensation",

author = "Katsuyuki Taguchi and Hiroyuki Kudo",

note = "Funding Information: Manuscript received January 23, 2008; revised April 22, 2008. This work was supported in part by American Heart Association under Grant 0665431U, in part by Siemens Medical Solutions under Grant JHU-2006-CT-06-01, and in part by the startup fund of the Division of Medical Imaging Physics at the Russell H. Morgan Department of Radiology and Radiological Sciences, the Johns Hopkins University. Asterisk indicates corresponding author. *K. Taguchi is with the Russell H. Morgan Department of Radiology and Radiological Sciences, Johns Hopkins University School of Medicine, 601 N. Caroline Street, Baltimore MD21287 USA (e-mail: ktaguchi@ jhmi.edu).",

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doi = "10.1109/TMI.2008.925076",

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AU - Kudo, Hiroyuki

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Motion compensated fan-beam reconstruction for nonrigid transformation

Abstract

Keywords

ASJC Scopus subject areas

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