Strain/Strain Ratio

Conventional cardiac function analysis is focused on diagnosis of global heart movement. By opposition, Strain quantifications aim is to analyse cardiac function more locally and sensitively by focusing attention on myocardium areas themselves.

Strain analysis is used to examine the cardiac function by measuring the elongation and shrinkage of the regional myocardium between two designated points. Strain analysis is attracting attention because it is less affected by translation and tethering for correct evaluation of myocardial motion.

You can carry on analysis while making sure that ROI position and Strain length are adequately set (therefore tracking of the “objective part” ) and working by checking the ROI that automatically follows by velocity tracking and the SR marks.

Hitachi’s Velocity Tracking Algorithm to calculate STRAIN, based on the state of the art technology, makes it possible to automatically and easily track regional myocardium motion (Strain) while taking in consideration “twist” & “tethering” effects of the global heart movement.

Using line data (RAW), the TDI analysis software enables high frame rate for accurate analysis results.

Strain

Strain Rate