Using Tissue Acceleration to Create Better Dti Waveforms (Doppler Tissue Imaging) for Crt (Cardiac Resynchronization Therapy)

A method for reconstructing DTI velocity waveforms created by performing DTI looks for forming DTI ensembles, said method comprising:

• using three or more looks in an ensemble along a given scan line direction;
• calculating DTI velocity estimate and instantaneous measure of tissue acceleration;
• and
• reconstructing said waveform.

An article of manufacture comprising:

• a computer usable medium having computer readable program code means embodied thereon for reconstructing high quality velocity waveforms, said computer readable program code means in said article of manufacture comprising:
• computer readable program code to determine and store at least three looks;
• computer readable program code to determine a DTI ensemble comprising the at least three looks;
• computer readable program code to calculate a velocity estimate of said DTI ensemble;
• computer readable program code to calculate an acceleration estimate of said DTI ensemble;
• and
• computer readable program code to reconstruct said velocity waveforms from both said velocity estimate and said acceleration estimate.

A system for performing DTI looks for creating DTI ensembles for reconstructing high quality velocity waveforms obtained at comparatively slow frame rates, said system comprising:

• the DTI ensembles having at least three looks;
• a velocity calculator for calculating velocity of said DTI ensemble;
• and
• an acceleration calculator for calculating acceleration of said DTI ensemble, wherein said velocity calculator and said acceleration calculator determine said reconstructed high quality velocity waveforms.