
Proceedings Paper
Four-dimensional non-rigid cardiac motion estimationFormat | Member Price | Non-Member Price |
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Paper Abstract
Electrocardiogram-gated cardiac CT reconstruction methods have been developed to reduce motion artifacts; however,
projection data used in reconstruction are limited to those within gating time windows, resulting in large image noise.
Motion compensated image reconstruction is capable of fully utilizing all projection data if a motion vector field is
known. In this work, we propose a non-rigid four-dimensional image-based motion estimation method which uses a
nested conjugated gradient method to minimize a cost function. The proposed method is implemented on GPU using
CUDA, and its performance was verified with patient data.
Paper Details
Date Published: 24 February 2012
PDF: 7 pages
Proc. SPIE 8314, Medical Imaging 2012: Image Processing, 831454 (24 February 2012); doi: 10.1117/12.911099
Published in SPIE Proceedings Vol. 8314:
Medical Imaging 2012: Image Processing
David R. Haynor; Sébastien Ourselin, Editor(s)
PDF: 7 pages
Proc. SPIE 8314, Medical Imaging 2012: Image Processing, 831454 (24 February 2012); doi: 10.1117/12.911099
Show Author Affiliations
Qiulin Tang, The Johns Hopkins Univ. School of Medicine (United States)
Jochen Cammin, The Johns Hopkins Univ. School of Medicine (United States)
Jochen Cammin, The Johns Hopkins Univ. School of Medicine (United States)
Somesh Srivastava, The Johns Hopkins Univ. School of Medicine (United States)
Katsuyuki Taguchi, The Johns Hopkins Univ. School of Medicine (United States)
Katsuyuki Taguchi, The Johns Hopkins Univ. School of Medicine (United States)
Published in SPIE Proceedings Vol. 8314:
Medical Imaging 2012: Image Processing
David R. Haynor; Sébastien Ourselin, Editor(s)
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