TY - GEN
T1 - Dynamic range of harmonic phase magnetic resonance imaging (HARP-MRI)
AU - Parthasarathy, Vijay
AU - Ness-Aiver, Mortel
AU - Prince, Jerry L.
PY - 2004
Y1 - 2004
N2 - Harmonic phase (HARP) magnetic resonance imaging (MRI) is an image analysis method for measuring tissue motion and strain from tagged MR images. Previous studies in cardiac tagged MRI have demonstrated its utility in the characterization of myocardial infarction, ischemia, and the reperfusion of stunned myocardium. Recently HARP has also been used in characterizing the motion of the tongue during speech. In this paper, we characterize dynamic range - limits of elongation, compression and rotation - of HARP-MRI. Viewing HARP-MRI as a phase demodulation technique, a key simplifying relationship permits us to derive approximate analytic expressions for these quantities. Simulations demonstrate the validity of our analysis and also help to provide intuition for these results.
AB - Harmonic phase (HARP) magnetic resonance imaging (MRI) is an image analysis method for measuring tissue motion and strain from tagged MR images. Previous studies in cardiac tagged MRI have demonstrated its utility in the characterization of myocardial infarction, ischemia, and the reperfusion of stunned myocardium. Recently HARP has also been used in characterizing the motion of the tongue during speech. In this paper, we characterize dynamic range - limits of elongation, compression and rotation - of HARP-MRI. Viewing HARP-MRI as a phase demodulation technique, a key simplifying relationship permits us to derive approximate analytic expressions for these quantities. Simulations demonstrate the validity of our analysis and also help to provide intuition for these results.
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M3 - Conference contribution
AN - SCOPUS:17144382135
SN - 0780383885
SN - 9780780383883
T3 - 2004 2nd IEEE International Symposium on Biomedical Imaging: Macro to Nano
SP - 884
EP - 887
BT - 2004 2nd IEEE International Symposium on Biomedical Imaging
T2 - 2004 2nd IEEE International Symposium on Biomedical Imaging: Macro to Nano
Y2 - 15 April 2004 through 18 April 2004
ER -