Ischemia resulted in a significantly rapid reduction of systolic and early diastolic velocities. Such reduction were detected by DTI after 5 s of coronary artery occlusion,but after 1 min by conventional two dimensional echocardiography.
英
美
- 缺血導致局部心室壁運動(dòng)明顯減弱 ,脈沖頻譜DTI技術(shù)于冠脈閉塞后5s可檢出這種異常 ,而傳統超聲指標在閉塞 1min后才出現顯著(zhù)性差異。