Speckle tracking echocardiography vendor comparison

What is it about?

Article on the comparison of two widely used speckle tracking systems for echocardiography. The study focusses on the comparison of GE and Philips' derived strain patterns of the interventricular septum, in patients with cardiac resynchronization therapy (CRT). As septal strain patterns have a high predictive value for response to CRT, the two systems were compared in 11 patients. Each patient was analyzed with both a GE and a Philips ultrasound system and corresponding speckle tracking software

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Why is it important?

Septal strain patterns of the two systems are different in terms of systolic shortening, time to peak strain and septal rebound stretch. Patterns were similar regarding the type and correlation of strain patterns was average. Therefore comparison of results with both systems is restricted to patterns and comparing specific parameters should be done carefully. Standardization of speckle tracking echocardiography is warranted.