Echocardiography, Biology

Assignment Help:

Both global and regional systolic function are to be checked. Global measures include ejection fraction, stroke volume, end systolic volume. (For measurement of systolic function using M-mode and 2D echocardiography refer to the section on Echocardiography.) In diastolic dysfunction there is generally presence of left ventricular hypertrophy. The transmitral flow is studied by pulsed Doppler. In normals the early filling velocity (E-wave) is larger than the velocity during atrial contraction (A-wave) and the descent is fast. In diastolic dysfunction there are in general 2 types of patterns. When relaxation is impaired the E-wave becomes smaller and its deceleration time is prolonged and the A-wave becomes taller. With restrictive physiology the E-wave becomes taller and the deceleration time is shorter and the A-wave is smaller. There are also abnormalities in the pulmonary venous flow patterns.


Related Discussions:- Echocardiography

Enumerate the major substrates for gluconeogenesis, Enumerate the major sub...

Enumerate the major substrates for gluconeogenesis The major substrates for gluconeogenesis are the glucogenic amino acids, lactate  glycerol and (important  in ruminant) propi

Myocardial ischemia, In patients with coronary artery disease an acute coro...

In patients with coronary artery disease an acute coronary syndrome event can precipitate heart failure. Mitral regurgitation occurring as a result of papillary muscle ischemia con

Determine about the chloroplast, Determine about the Chloroplast One of...

Determine about the Chloroplast One of the most distinguishing features of all eukaryotic plant cells is that in addition to mitochondria, they contain special light harvesting

Define about the carbohydrates, Define about the Carbohydrates? In the ...

Define about the Carbohydrates? In the previous unit we have studied about the energy requirements. You now know that energy must be supplied regularly to individuals through t

What is class asteroidea, What is Class Asteroidea ? Sea stars are prob...

What is Class Asteroidea ? Sea stars are probably one of the most recognizable of all Echinoderms. Often beautifully colored and symmetrical, they are predators that feed vorac

The biomass available for consumption by the herbivores, The biomass availa...

The biomass available for consumption by the herbivores and the decomposers is called : 1. Net primary productivity 2. Secondary productivity 3. Standing crop 4. Gross

Emergence of contemporary biology, EMERGENC E OF CONTEMPORARY BIOLOGY - ...

EMERGENC E OF CONTEMPORARY BIOLOGY - 1 .       Aristotle (384-322BC) - Greek Classified animal species and arranged them in hierarchies. Formulated 'Great chain of

Homeostasis , Homeostasis Homeostasis may be defined as the maintenan...

Homeostasis Homeostasis may be defined as the maintenance of constancy in the internal environment of the organism. This is essential for maintenance of life. Without homeost

Statements concerning the inheritance of a dominant trait, Which of the fol...

Which of the following statements concerning the inheritance of a dominant trait is true? Every affected person must have at least one affected parent. The trait is observed to ski

Define the recommended dietary allowance for vitamin b12, Define the Recomm...

Define the Recommended Dietary Allowance for Vitamin B 12 (RDA)? Vitamin B 12 deficiency is common in true vegans who can be treated with small doses since the daily requirem

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd