Evaluation of collateral blood flow by myocardial contrast enhanced echocardiography.
نویسندگان
چکیده
منابع مشابه
Evaluation of collateral blood flow by myocardial contrast enhanced echocardiography.
Contrast enhanced cross sectional echocardiography is a new method for the real-time evaluation of regional myocardial perfusion. Two patients with a history of anteroseptal myocardial infarction and echocardiographically detected septal dyskinesia were examined by this new method. The first patient had two severe stenoses of the left anterior descending coronary artery and normal echocontrast ...
متن کاملAssessment of Myocardial Collateral Blood Flow with Contrast Echocardiography
Humans have pre-formed collateral vessels that enlarge with ischemia. In addition, new vessels can be formed within ischemic zones from pre-formed endocardial arcades of vessels providing rich collateral flow. Collateral flow under resting conditions (if >25% of normal) is enough to maintain myocardial viability, but may be insufficient to prevent myocardial ischemia under stress. Coronary angi...
متن کاملCombined assessment of reflow and collateral blood flow by myocardial contrast echocardiography after acute reperfused myocardial infarction.
OBJECTIVE To evaluate the combined assessment of reflow and collateral blood flow by myocardial contrast echocardiography after myocardial infarction. DESIGN Myocardial contrast echocardiography was performed in patients with acute myocardial infarction shortly after successful coronary reperfusion (TIMI 3 patency) by direct angioplasty. Collateral flow was assessed before coronary angioplast...
متن کاملCollateral-flow measurements in humans by myocardial contrast echocardiography: validation of coronary pressure-derived collateral-flow assessment.
AIMS Myocardial blood flow (MBF) is the gold standard to assess myocardial blood supply and, as recently shown, can be obtained by myocardial contrast echocardiography (MCE). The aims of this human study are (i) to test whether measurements of collateral-derived MBF by MCE are feasible during elective angioplasty and (ii) to validate the concept of pressure-derived collateral-flow assessment. ...
متن کاملFunctional significance of collateral blood flow in patients with recent acute myocardial infarction. A study using myocardial contrast echocardiography.
BACKGROUND We hypothesized that myocardial contrast echocardiography (MCE) can be used to both measure collateral blood flow as well as assess the functional significance of collaterals in patients with acute myocardial infarction (AMI). METHODS AND RESULTS MCE was performed in 33 patients with recent AMI (12 +/- 7 days) and an occluded infarct-related artery (IRA), both before and after atte...
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ژورنال
عنوان ژورنال: Heart
سال: 1988
ISSN: 1355-6037
DOI: 10.1136/hrt.59.1.20