Progress of tissue Doppler echocardiography in ischemic heart disease study amount, this method measured only the average speed of the myocardium. The curve of anatomical M-mode technology to expand the measurement range (parasternal short axis can also be adopted), the SE, by the time limit is reduced, and thus this technology shows advantages in the SE. A treadmill load test, 10 cases coronary angiography confirmed that patients with CAD, coronary artery stenosis of more than 70%, the resting state to load ·； 64 Wucai E and other organizations Doppler echocardiography in ischemic heart disease the state of progress in the study, canada goose, the average ischemic regional myocardial contraction speed increase in a significant reduction. MVG will not be the heart twisting affected, it became seen as a barometer of the DSE, the non-ischemic segments MVG showed a dose-response increased in the low-dose DSE, the interval before the ischemic area and the increase of the posterior wall of the MVG interval before a significant reduction of 01 a [ (2.5 ±； 0.8 ) to (2.7 ±； 0.7 ) S- S only... Posterior wall by (3.45 ±； 1.0 ) S to ( 4.1 ±； 0.95) S ], showed no significant changes. In addition, the application of bleed at the nose line anatomical M-type DSE can also assess myocardial survival: non-viable myocardium average diastolic velocity to reduce the resting state, the average load condition, regardless of myocardial contraction speed or average diastolic velocity did not change. And Przemyslow found in the low-dose DSE, the base section and the middle of the interventricular septum survived myocardial late diastolic myocardial average speed can be increased, but the apex did not show this change. Low -dose DSE. Average velocity of early diastolic myocardial viability average velocity and late diastolic significantly higher than non-viable myocardium, both myocardial average diastolic velocity compared to a significant difference. 3.5 Other applications: TDE has also been used to evaluate the myocardial infarction after thrombolytic effect of ischemic myocardium Sm and Em increase is effective indication for thrombolysis, PTCA and before and after the Sm and Em contrast observation is an effective means of evaluation of PTCA effects. In summary, TDE is ischemic heart disease research work, diagnosis and treatment evaluation is playing an increasingly important role.