TY - GEN
T1 - Real time constrained motion estimation for ECG-gated cardiac MRI
AU - Roujol, S.
AU - Benois-Pineau, J.
AU - De Senneville, B. Denis
AU - Quesson, B.
AU - Ries, M.
AU - Moonen, C.
PY - 2010
Y1 - 2010
N2 - Continuous magnetic resonance (MR) imaging is a promising tool for image-guided cardiac interventions. However, cardiac imaging is complicated by both, cardiac and respiratory motion. While the former is commonly addressed by cardiac gating, the latter requires a real time motion compensation. Here, a new image based motion estimation is proposed, extending the initial Horn & Schunck optical flow approach by an additional regularization term. This term allows to integrate displacement of physiological landmarks, which are obtained in a preparation step using pattern matching. The proposed method was evaluated on the left ventricle (LV) of cardiac MR-images and showed a better estimation accuracy compared to the original Horn & Schunck approach.
AB - Continuous magnetic resonance (MR) imaging is a promising tool for image-guided cardiac interventions. However, cardiac imaging is complicated by both, cardiac and respiratory motion. While the former is commonly addressed by cardiac gating, the latter requires a real time motion compensation. Here, a new image based motion estimation is proposed, extending the initial Horn & Schunck optical flow approach by an additional regularization term. This term allows to integrate displacement of physiological landmarks, which are obtained in a preparation step using pattern matching. The proposed method was evaluated on the left ventricle (LV) of cardiac MR-images and showed a better estimation accuracy compared to the original Horn & Schunck approach.
KW - Biomedical image processing
KW - Magnetic resonance imaging
KW - Motion compensation
KW - Real time systems
UR - https://www.scopus.com/pages/publications/78651081464
U2 - 10.1109/ICIP.2010.5652090
DO - 10.1109/ICIP.2010.5652090
M3 - Conference contribution
AN - SCOPUS:78651081464
SN - 9781424479948
T3 - Proceedings - International Conference on Image Processing, ICIP
SP - 757
EP - 760
BT - 2010 IEEE International Conference on Image Processing, ICIP 2010 - Proceedings
T2 - 2010 17th IEEE International Conference on Image Processing, ICIP 2010
Y2 - 26 September 2010 through 29 September 2010
ER -