Speckle tracking technology of papillary muscle level ventricular wall motion in patients with myocardial ischemia research

Objective To study ultrasound speckle tracking technology in the diagnosis of patients with myocardial ischemia segments chamber wall motion abnormalities clinical application value. Methods Ultrasound speckle tracking technology was used to measure 20 cases of patients with myocardial ischemia and 20 cases of normal person corresponding to the heart of sarcomere two-dimensional strain values,the left ventricular short axis papillary muscle level plane 2 d images were collected,6 segmental systolic circumferential strain values the circumferential strain rate and partial short axial shortening rate were measured and analyzed with spss13. 0. Results Left ventricular short axis of papillary muscle level circumferential strain,circumferential strain rate and local short axial shortening rate were not statistically significant difference between the wall; cases of patients with papillary muscle level six heart segmental systolic circumferential strain value of scaromere,circumferential strain rate,local short axial shortening rate were significantly reduced compared with normal control group,there were significantly differences( P 0. 05). Conclusion Ultrasound speckle tracking technology can accurately evaluate segmental ventricular wall motion abnormalities and myocardial ischemia for clinical assessment in patients with left ventricular systolic function,which provided scientific and objective,the new methods of noninvasive.