Evaluation of strain averaging area and strain estimation errors in a spheroidal left ventricular model using synthetic image data and speckle tracking

Table 3 Parameters of the HBM method

Parameter	Iteration number
Parameter	1	2	3
Similarity measure	Cross-correlation coefficient
Input signal	RF envelope	RF envelope	RF
Kernel overlap	2/3
Method to obtain subpixel resolution	Similarity measure map interpolation using cubic B-spline
Subpixel resolution	16x	32x	64x

ISSN: 1471-2342