7/10/2023 0 Comments Qlab software comparison![]() Two-hundred eleven patients were analysed. Dyssynchrony parameters were associated with CRT response using univariate regression analysis and C-statistics. ![]() The coefficient of variation and intra-class correlation coefficient (ICC) were analysed. Septal strain patterns were categorized in three types. Basic longitudinal strain and mechanical dyssynchrony parameters (septal to lateral wall delay (SL-delay), septal systolic rebound stretch (SRSsept), and systolic stretch index (SSI)) were obtained from either separate septal and lateral walls, or total LV apical four chamber. Response was defined as change in left ventricular (LV) end-systolic volume between examination before and six-months after CRT implantation. In the MARC study, echocardiographic images of heart failure patients obtained before CRT implantation were prospectively analysed with vendor specific STE software (GE EchoPac and Philips QLAB) and vendor-independent software (TomTec 2DCPA). Although mechanical dyssynchrony parameters derived by speckle tracking echocardiography (STE) may predict response to cardiac resynchronization therapy (CRT), comparability of parameters derived with different STE vendors is unknown.
0 Comments
Leave a Reply. |