What do you know about cardiothoracic ratio, Biology

Assignment Help:

Q. What do you know about Cardiothoracic ratio?

The cardiothoracic ratio (CTR) shown in figure is the transverse cardiac diameter (the horizontal distance between the most rightward and leftward borders of the heart seen on a PA chest radiograph) divided by the transverse chest diameter (measured from the inner rib margin at the widest point above the costophrenic angles on a PA chest film).

A cardiothoracic ratio of more than 50 per cent is generally considered abnormal in an adult. It may be upto 55 per cent in blacks and Asians and 60 per cent in neonates and the elderly. The cardiac diameter alone can also be measured. It is less than 13.5 cm in 90 per cent of males and 12.5 cm in 90 per cent of females. A change in diameter of greater than 1.5 cm between two radiographs is considered significant.

546_What do you know about Cardiothoracic ratio.png


Related Discussions:- What do you know about cardiothoracic ratio

Nerve fibres, NERV E FIBRES - Axon or dendrite of a nerve cell cove...

NERV E FIBRES - Axon or dendrite of a nerve cell covered with one, two or three sheaths is called nerve fibre. Dendrites are surrounded only by one sheath. An axon may b

Explain the objectives of congenital heart disease, Explain the Objectives ...

Explain the Objectives of Congenital Heart Disease ? After reading this unit, you should be able to: 1 Comprehenced the epidemiologic significance of congenital heart disease (

Protozoa, What are the disadvantages of protozoa

What are the disadvantages of protozoa

What are the homologous chromosomes, Q. What are the homologous chromosomes...

Q. What are the homologous chromosomes? Which are the human cells that do not have homologous chromosomes? Chromosomes contain genes genetic information in the form of nucleoti

Caruncle - seed appendages, Caruncle - Seed Appendages This is a white...

Caruncle - Seed Appendages This is a white, collar-like structure borne on the micropylar end of the seed in many members of the Euphorbiaceae, such as castor, Ricinus communi

Fungal enzymes, Hello, I''m doing a...

Hello, I''m doing an assignment on characteristics and types of fungal enzymes and have also been requested to describe their assay.My libra

What is a membrane, What is a membrane? Membrane is any delicate sheet ...

What is a membrane? Membrane is any delicate sheet that divides one region from another blocking or permitting (selectively or completely) the passage of substances. The skin,

What are the venous of the valves system, Q. What are the venous of the val...

Q. What are the venous of the valves system? What is their function? The valves of the venous system are structures inside the veins that permit blood to flow only in the norma

Physical properties of protoplasm, What is the physical experiment that sho...

What is the physical experiment that show that the protoplasm has contractility?

Drug management for gout disease, Q. Drug Management for gout disease? ...

Q. Drug Management for gout disease? Drugs are so effective in lowering the serum mate concentration that rigid restriction of dietary purines is rarely necessary. Uricosurie d

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