METHODOLOGICAL ASPECTS OF VISUALIZATION OF CORONARY ARTERIES WITH TRANSTHORACIC ECHOCARDIOGRAPHY

2018 ◽  
pp. 26-35
Author(s):  
Z. A. Agaeva ◽  
K. B. Baghdasaryan
Keyword(s):  
Blood Flow ◽  
Coronary Blood Flow ◽  
Coronary Arteries ◽  
Transthoracic Echocardiography ◽  
Second Harmonic ◽  
Anatomic Reconstruction ◽  
High Quality ◽  
Acoustic Window ◽  
Methodological Aspects

The transthoracic echocardiography made by multifrequency probes with support of the mode of the second harmonic imaging, is a competitive method for visualization of the main coronary arteries and allows to estimate coronary blood flow with high quality. Of course, the method has considerable restrictions, most important of which is the low spatial resolution of a method, due to small acoustic window. Because of this the transthoracic visualization of coronary arteries perhaps will not become the leading method of anatomic reconstruction of separately taken coronary artery and especially all coronary arteries system. However uniqueness and indisputable advantage of this method is an opportunity to noninvasively estimate a coronary blood flow both once, and in dynamics.

Usefulness of transthoracic echocardiography in demonstrating coronary blood flow after coronary artery bypass grafting

2004 ◽  
Vol 93 (7) ◽  
pp. 923-925 ◽  
Author(s):  
Daniel Wing Chong Ng ◽  
Konstantinos Vlachonassios ◽  
Anoshie R. Nimalasuriya ◽  
Vu T. Nguyen ◽  
Charmi Wijesekera ◽  
...  
Keyword(s):  
Blood Flow ◽  
Coronary Artery ◽  
Coronary Artery Bypass Grafting ◽  
Coronary Artery Bypass ◽  
Coronary Blood Flow ◽  
Transthoracic Echocardiography ◽  
Artery Bypass ◽  
Bypass Grafting ◽  
Artery Bypass Grafting

Inverse correlation between coronary and retinal blood flows in patients with normal coronary arteries and slow coronary blood flow

2014 ◽  
Vol 232 (1) ◽  
pp. 149-154 ◽  
Author(s):  
Yaron Arbel ◽  
Amir Sternfeld ◽  
Adiel Barak ◽  
Zvia Burgansky-Eliash ◽  
Amir Halkin ◽  
...  
Keyword(s):  
Blood Flow ◽  
Coronary Blood Flow ◽  
Coronary Arteries ◽  
Inverse Correlation ◽  
Normal Coronary Arteries ◽  
Blood Flows

scholarly journals Methological aspets of assessing the quality of medical care

2021 ◽  
Vol 1 (8) ◽  
pp. 44-52
Author(s):  
A. V. Kolokolov
Keyword(s):  
Medical Care ◽  
Negative Impact ◽  
Economic Conditions ◽  
Diagnostic Process ◽  
High Quality ◽  
Smart System ◽  
New Approach ◽  
Quality Of Medical Care ◽  
Methodological Aspects

One of the most urgent areas of Russian health care is the organization of medical care in the new socio-economic conditions, aimed at providing affordable high-quality and safe medical care to the population, therefore, a new approach to the formation of control over both the quality of medical care and its safety is of particular interest. At all stages of the treatment and diagnostic process, serious mistakes can be made that can have a negative impact on the life and health of patients.The article discusses the methodological aspects of assessing the quality of medical care at all stages of the treatment and diagnostic process. Requirements for the formation of an expert opinion, which is prepared based on the results of the examination of the quality of medical care, have been formulated. In order to effectively manage the quality of medical care, the author proposes the creation of a digital “smart” system for monitoring defects in medical care.

ANTI-THROMBOTIC EFFECT IN CANINE CORONARY ARTERIES OF A COMBINED TXA2 synthetase/TXA2-prostaglandin ENDOPEROXIDE RECEPTOR INHIBITOR (R 68070)

1987 ◽  
Author(s):  
A Van de Water ◽  
R Xhonneux ◽  
F De Clerck
Keyword(s):  
Heart Rate ◽  
Blood Flow ◽  
Electrical Stimulation ◽  
Coronary Artery ◽  
Coronary Blood Flow ◽  
Coronary Arteries ◽  
Endothelial Injury ◽  
Receptor Blockade ◽  
Steel Electrode ◽  
Prostaglandin Endoperoxide

The effects of R 68070 an oxime-alkane carboxylic acid derivative combining specific thromboxane A2 (TXA2) synthetase inhibition with TXA2/prostaglandin endoperoxide receptor blockade in one molecule, on thrombus formation in a coronary artery following electrically-induced endothelial injury and on its myocardial repercussions were examined in dogs. In an open-chest model in anaesthetized dogs, a stainless steel electrode was inserted into the left anterior descending coronary artery (LAD) distally (+ 1 cm) from an electromagnetic flow probe. ECG and heart rate were derived from limb leads. Serum TXB2 levels were measured by RIA on venous spontaneously coagulated blood (1 h, 37°C). Endothelial cell injury in the LAD coronary artery was induced by the application of an anodal current of 300 μA during 30 min; after an additional 60 min observation period, the thrombus wet weight was determined.In comparison with solvent treatment (n = 8), R 68070 (1.25 mg/kg I.V. 10 min before electrical stimulation, n = 7), significantly reduced the thrombus mass (solvent : 43 mg; R 68070 : 18 mg median value, p < 0.05), the incidence of ECG changes indicative for myocardial ischemia (fibrillation : solvent 1/8; R 68070 0/7; arrhythmias : solvent 3/8; R 68070 2/7; ST changes : solvent 7/8; R 68070 1/7, p < 0.05) and the decrease in coronary blood flow after electrical stimulation (solvent : from 13 to 6.5 ml/min; R 68070 : from 13 to 11 ml/min median values, p < 0.05). Serum TXB2 levels were reduced by 92 % at 100 min after the injection of the active compound (median value, n = 7).Heart rate and coronary blood flow measured before the induction of the endothelial injury were not modified by R 68070.The present study thus demostrates that R 68070 exerts a potent anti-thrombotic effect in canine coronary arteries. The relative contributions to this effect of TXA2 synthetase inhibition and of TXA2/prostaglandin endoperoxide receptor blockade exerted by the compound are being investigated.

Sign in / Sign up

Export Citation Format

Share Document