PMID: 3765765Jul 1, 1986Paper

Experimental studies of the evaluation of the size of infarct and perfusion defects using analysis of regional wall motion from 2-dimensional echocardiography

Zeitschrift für Kardiologie
M SchartlH Schmutzler

Abstract

In an experimental study with laboratory animals we studied the relation between the extent of a disorder of regional wall motion as determined by echocardiography and size of a perfusion defect following occlusion of a coronary vessel for 5 hours. It was demonstrated that wall motion is not uniform in a normal left ventricle and that there is a wide range of variability in wall motion within a given myocardial segment. For this reason we determined the extent of a disorder of regional wall motion in two echocardiographic planes with reference to defined normal values. Analysis of interobserver and intraobserver variability showed that reproducible determinations of the circumferential extent of a disorder of regional wall motion and the ejection fraction are possible with an acceptable degree of certainty. There was a significant correlation between morphological determinations of the size of a perfusion defect in the left ventricle and the circumferential extent of a disorder of regional wall motions as demonstrated in the echocardiogram (r = 0.83). The regression curve (y = 4.26 + 0.95x) for determinations of the size of the perfusion defect approached the identity line with a standard error of estimation for the echocardiog...Continue Reading

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.