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

Explain the microscope, Explain the Microscope? Microscope is a powerfu...

Explain the Microscope? Microscope is a powerful and crucial basic tool in the field of microbiology. Microbiology, as we have already studied in our theory Course, is the scie

How is the cerebrum anatomically divided, How is the cerebrum anatomically ...

How is the cerebrum anatomically divided? The cerebrum is divided into two cerebral hemispheres, the right and the left. Each hemisphere is made of four cerebral lobes: frontal

Explain about cloning, What is Cloning Cloning: Somatic (ie 2N) cell fr...

What is Cloning Cloning: Somatic (ie 2N) cell from original female cat removed (nucleus has mutated allele), fertilised egg extracted from another cat, nucleus removed, and egg

Explain the food applications of locust bean gum, Food Applications of Locu...

Food Applications of Locust bean gum Locust bean gum has multiple applications in food industry.  Let us focus on a few of the important ones: Locust bean gum has been u

Explain food applications of gum tragacanth, Food Applications of Gum traga...

Food Applications of Gum tragacanth Gum tragacanth finds various food applications. These include: In dairy products, it functions as stabilizer in ice cream, ice pops a

Define disadvantages of using the plate counts method, Define Disadvantages...

Define Disadvantages of Using the Plate Counts Method? 1. It takes time, usually 24 hours or more is required to obtain visible colonies. 2. Microbial count obtained depends

Why influenza activity is mandatory in the united states, Healthcare provid...

Healthcare provider reporting of influenza activity is mandatory in the United States.

Role of mesoderm and ectoderm in limb morphogenesis, Role of Mesoderm and E...

Role of Mesoderm and Ectoderm in Limb Morphogenesis A series of very interesting experiments on wing and leg buds of chick embryos have clarified the respective roles of meso

Classification, describe in details charateristics of two sub phyla of phyl...

describe in details charateristics of two sub phyla of phylum anthropoda

What are the body fat measurements, What are the Body Fat Measurements? ...

What are the Body Fat Measurements? Obesity is best classified in adults based on Body Mass Index (BMI) classification. BMI, you already know, is a measure of body jut based on

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