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. Author manuscript; available in PMC: 2009 Oct 1.
Published in final edited form as: Ultrasound Med Biol. 2008 Jun 2;34(10):1622–1637. doi: 10.1016/j.ultrasmedbio.2008.02.013

Table 3.

Kernel sizes and overlaps between adjacent displacement tracking kernels and linear regression window length used with the 2-D multilevel strain estimation technique. The first number in each bracket was used in the coarsest search, and the second number was used in the finest search.

System fc
(MHz)		 Linear
Regression
Window
(mm)		 Axial Kernel
Length (mm)		 Axial Step Size
between Adjacent
Tracking Kernels
(mm)		 Lateral Kernel
Width (mm)		 Lateral Step Size
between Adjacent
Tracking Kernels
(mm)
Antares 11 1.06 [0.963,0.286] [0.385,0.0963] [0.757,0.379] [0.303,0.151]
9 1.06 [0.963,0.286] [0.385,0.0963] [1.07,0.535] [0.428,0.214]
Aloka 7.5 2.31 [1.54,0.539] [0.308,0.116] [0.364,0.182] [0.364,0.182]