Share Email Print
cover

Proceedings Paper

Four-dimensional non-rigid cardiac motion estimation
Author(s): Qiulin Tang; Jochen Cammin; Somesh Srivastava; Katsuyuki Taguchi
Format Member Price Non-Member Price
PDF $14.40 $18.00

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
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)
Somesh Srivastava, 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)

© SPIE. Terms of Use
Back to Top