TY - GEN
T1 - A new criterion for motion estimation assessment for MR-thermometry applications
AU - Roujol, S.
AU - Ries, M.
AU - Quesson, B.
AU - Benois-Pineau, J.
AU - Moonen, C.
AU - De Senneville, B. Denis
PY - 2010
Y1 - 2010
N2 - Real time magnetic resonance (MR) thermometry provides continuous temperature mapping inside the human body and allows precise monitor and control of thermal therapies. An accurate motion estimation is required on mobile targets. However, the assessment of the estimated motion accuracy is difficult since the real target motion is unknown. In this paper, existing criteria based only on anatomical image similarity are demonstrated to be insufficient. A new criterion is introduced, which is based on the phase image similarity. The proposed criterion was evaluated on a moving phantom and compared to the real motion and established criteria based on anatomical image. It exhibits better consistency of motion estimation assessment.
AB - Real time magnetic resonance (MR) thermometry provides continuous temperature mapping inside the human body and allows precise monitor and control of thermal therapies. An accurate motion estimation is required on mobile targets. However, the assessment of the estimated motion accuracy is difficult since the real target motion is unknown. In this paper, existing criteria based only on anatomical image similarity are demonstrated to be insufficient. A new criterion is introduced, which is based on the phase image similarity. The proposed criterion was evaluated on a moving phantom and compared to the real motion and established criteria based on anatomical image. It exhibits better consistency of motion estimation assessment.
KW - Image registration
KW - Magnetic resonance imaging
KW - Motion analysis
KW - Motion compensation
UR - http://www.scopus.com/inward/record.url?scp=77955221525&partnerID=8YFLogxK
U2 - 10.1109/ISBI.2010.5490220
DO - 10.1109/ISBI.2010.5490220
M3 - Conference contribution
AN - SCOPUS:77955221525
SN - 9781424441266
T3 - 2010 7th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, ISBI 2010 - Proceedings
SP - 1241
EP - 1244
BT - 2010 7th IEEE International Symposium on Biomedical Imaging
T2 - 7th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, ISBI 2010
Y2 - 14 April 2010 through 17 April 2010
ER -