Explain dual energy x-ray absorptiometry (dexa), Biology

Assignment Help:

Explain Dual Energy X-ray Absorptiometry (DEXA)?

Dual energy X-ray absorptiometry (DEXA) is a relatively new technology that is being identified as a reference method for body composition analysis. This method is based on three-compartment model that divides the body into total-body mineral, mineral-free lean and fat tissue masses.

A device emits X-rays at two different energy levels and a detector measures the reduction of energy through the body. From this, bone density and soft tissue can be calculated. The values of body fat mass and lean tissue can be estimated. DEXA provides segmental and regional measures of body composition. This method can also be used for showing distribution of fat on the body.

This is a very accurate and reproducible method, has good relationship correlation with other methods. DEXA is an alternative to hydro densitometry (W) as a reference method because it is rapid (a total body scan takes 20 minutes), safe, requires minimal subject cooperation and takes into account inter individual variability in bone mineral content.

 


Related Discussions:- Explain dual energy x-ray absorptiometry (dexa)

How cphs produce fermions, How CPHs produce fermions? Answer- For under...

How CPHs produce fermions? Answer- For understanding how CPHs is can produce fermions, do consider to electromagnetic, when the wavelength is growing. It's a CPH So CPH is a ti

What percentage of the offspring will have purple flowers, Purple(P) flower...

Purple(P) flowers are dominant and white(p) flowers are recessive. A homozygous dominant purple flower is crossed with a homozygous recessive white flower. what percentage of the o

Agro industrial-cobalt, Cobalt Cobalt functions as a component of vitamin ...

Cobalt Cobalt functions as a component of vitamin B12  (cobalamin). Ruminants are not dependent on a dietary source of vitamin B12  because ruminal microorganisms can synthesize B

What is secondary structure of a protein, Q. What is secondary structure of...

Q. What is secondary structure of a protein? The secondary protein structure is creating by the manner its amino acids interact through the intermolecular bond. These communica

What proportion of offspring will have same rflp pattern, A laboratory mous...

A laboratory mouse homozygous for an RFLP marker is mated to a wild mouse that is heterozygous for that marker. One of the heterozygous individuals resulting from this cross is mat

How stomata position changes in some plant, How has the position of the sto...

How has the position of the stomata changed in some plants to prevent excessive water loss by transpiration? In the some plants that have leaves that receive too much sunlight

Factors affects oxygen dissociation curve - Carbon dioxide , Factors affect...

Factors affects oxygen dissociation curve - Carbon dioxide Carbon dioxide lowers the oxygen affinity of haemoglobin even if the pH is kept constant. This effect is due to the

What chromosome condition is created, Following fertilization by a normal s...

Following fertilization by a normal sperm, what chromosome condition is created?

Cerebral palsy, Cerebral Palsy Cerebral palsy is a non-progressive neu...

Cerebral Palsy Cerebral palsy is a non-progressive neuromuscular disorder characterised by disorder of strength, muscle control, posture or movement due to brain injury, befor

Neurons, what are the properties of synapses

what are the properties of synapses

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