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

What is ribosomes , Each  ribosome  having  of two  subunits  a sma...

Each  ribosome  having  of two  subunits  a small  subunit  and  a large  subunit, every of that is a multi component  complex  of rRNAs (ribosomal  RNAs)  and ribosomal proteins t

How different are fecundation in chondrichthyes, Q. How different are fecun...

Q. How different are fecundation in chondrichthyes and in osteichthyes? In chondrichthyes fecundation is internal by resources of copulation. In osteichthyes fecundation genera

Explain adverse effects of atazanavir, Explain Adverse effects of Atazanavi...

Explain Adverse effects of Atazanavir  Atazanavir causes indirect hyperbilirubinemia. It has had no adverse effects on lipid profiles, but the drug's long-term effects are unkn

State the process of metabotropic receptors, State the process of metabotro...

State the process of metabotropic receptors Consider a system that contains two neurons and one cardiac SA node cell in a culture dish bathed in normal physiological saline.  A

How are grasslands classified, How are grasslands classified? The Grass...

How are grasslands classified? The Grasslands may be classified into steppes and savannahs. In a steppe prevailing vegetation is grass, as in the pampas of South America and in

What is the most likely source of error in the study, In a cohort study tha...

In a cohort study that found an association between alcohol consumption and bladder cancer, 20,000 middle-aged men were asked about their drinking habits and then tracked for five

Why water has key participation in organic reactions, Water has key partici...

Water has key participation in organic reactions. What are examples of two types of organic reactions in which water is respectively incorporated or liberated in the products of th

Explain the natural history of coronary artery diseases, Explain the NATURA...

Explain the NATURAL HISTORY OF CORONARY ARTERY DISEASES (GAD)? The natural history of CAD is very important from the preventive point or view. Though the usual manifestations o

Illustrate the applications of gellan gum, Illustrate the Applications of G...

Illustrate the Applications of Gellan gum Gellan is a highly versatile food ingredient and has numerous applications in foods. The combination of gelatin with gellan, by compar

Explain transposition the great arteries with ventricular, Explain Transpos...

Explain Transposition the Great Arteries with Ventricular Scptal Defect ? Transposition of the great arteries with VSD is an indication for surgery. It is preferable to do VSD

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