The Regional Myocardial Flow–Function Relationship
نویسندگان
چکیده
منابع مشابه
Relationship between regional myocardial procainamide concentration and regional myocardial blood flow during ischemia in the dog.
We measured myocardial blood flow and myocardial procainamide concentration in 24 sections of left ventricle following occlusion of the left circumflex coronary artery in 11 dogs. "C-Labeled procainamide was infused at a constant rate (40 jig/kg P r m ' n ) following completion of the coronary artery occlusion. At the end of 4 hours, the infusion was terminated and the dogs were killed. Regiona...
متن کاملRelationship of Regional Myocardial Perfusion to Segmental Wall Motion
coronary artery disease. We evaluated 270 segments in 54 patients, including 27 without evidence of myocardial infarction. Most normally perfused regions (125 of 140) contracted normally, whereas those with scintigraphic defects at rest were usually asynergic (42 of 46). Surprisingly, 57% (48 of 84) of regions with exercise-induced perfusion defects were also asynergic, including 48% (25 of 52)...
متن کاملRelationship of regional myocardial deformation and myocardial fibrosis to myocardial trabeculation: The Multi-Ethnic Study of Atherosclerosis
Background A high degree of noncompacted (trabeculated) myocardium in relationship to compact myocardium (NC/C ratio >2.3) as measured by cardiac MR (CMR) has been associated with a diagnosis of left ventricular noncompaction (LVNC). However, a large proportion of healthy individuals fulfill the criterion of a LVNC; thus, the clinical significance of hypertrabeculated myocardium remains unknown...
متن کاملPrevalence of regional myocardial thinning and relationship with myocardial scarring in patients with coronary artery disease.
IMPORTANCE Regional left ventricular (LV) wall thinning is believed to represent chronic transmural myocardial infarction and scar tissue. However, recent case reports using delayed-enhancement cardiovascular magnetic resonance (CMR) imaging raise the possibility that thinning may occur with little or no scarring. OBJECTIVE To evaluate patients with regional myocardial wall thinning and to de...
متن کاملRegional Myocardial Blood Flow
Do oxygen-derived free radicals, generated at the time of reperfusion, lethally injure viable, previously ischemic myocardium, damage vascular endothelium, and impair recovery of postischemic contractile function? To address these issues, 23 anesthetized open-chest dogs underwent 2 hours of left anterior descending coronary artery occlusion followed by 4 hours of reperfusion. Immediately prior ...
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ژورنال
عنوان ژورنال: Circulation Research
سال: 2013
ISSN: 0009-7330,1524-4571
DOI: 10.1161/circresaha.113.301446