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

Functions of cell wall, FUNCTIONS OF CELL WALL 1.       Provides shape ...

FUNCTIONS OF CELL WALL 1.       Provides shape to plant cell rigidity to cells. 2.       Functions as a barrier to entry of pathogens into the cells. 3.       Provides pr

Nuclear type - endosperm, Nuclear Type - Endosperm The primary endosp...

Nuclear Type - Endosperm The primary endosperm nucleus divides. The cell wall is not laid. These nuclei and their division products form a large number of free nuclei. The fi

Artificial parthenogenesis, Artificial Parthenogenesis In various cas...

Artificial Parthenogenesis In various cases, the eggs that normally develop only after fertilisation can be experimentally induced to develop parthenogenetically by specific

Describe in brief about retina, Describe in brief about retina The reti...

Describe in brief about retina The retina is a highly complex layer of nervous tissue. The photoreceptors are rods and cones for scotopic and photopic vision respectively. The

Explain properties of amylopectin and amylose, Properties of Amylopectin an...

Properties of Amylopectin and Amylose In plants, starch is packaged in granules, which vary in their  shape and size, when isolated from different sources. The size of these gr

Examples of tissues and organs where mitosis is frequent, Q What are some e...

Q What are some examples of tissues and organs where mitosis is more frequent, less frequent or practically absent? Generally in vertebrates mitosis is more frequent in tissues

What are the male and the female gonads in humans, Q. What are gonads? What...

Q. What are gonads? What are the male and the female gonads in humans? Gonads are the organs that produce gametes they contain the germ cells that undergo division and generate

How to investigate aortic stenosis by exercise testing, Q. How to investiga...

Q. How to investigate aortic stenosis by Exercise Testing? Exercise testing is relatively contraindicated in patients with aortic stenosis. Its diagnostic accuracy to pick up a

Pisces fish, description on characteristics of pisces fish

description on characteristics of pisces fish

What is hemolytic disease of newborn, Questiion 1 List various methods ...

Questiion 1 List various methods used for hemoglobin estimation of donor. Add a note on specific gravity method Question 2 Why is it important to follow safety measures

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