Hi Amit,

Thanks for your question, please help me to better answer it.  

1) Are you trying to get a measurement of bullying or obesity?  What would you want to determine from use of MRI techniques?

2) It might be helpful to state your research question or hypothesis to provide more clarity.  You mentioned both obesity and overweight, please be aware that these are two different classifications (overweight is defined as having a body mass index of >25, obesity is met with a body mass index >30)

Good luck!

Hi,

I am not a Dr in medic, but from theoretical point of view it should be possible. You obtain some measurement of the density of a mass enclosed by some compact region. From that measurement, you want to reconstruct the density of that mass. Taking into the size of the mass and the region, you should keep in my mind that the problem can be identified as a micro imaging problem but with compact measurement.

Hi Patrick Austin,

1) I am trying to get a measurement of bullying in overweight and obesity person and I want to determine overweight and obesity by using MRI.

Is MRI better for determining to overweight and obesity? if any other techniques useful for accurate measuring overweight and obesity please suggest me.

Hi Erdem Altuntac,

Thanks for your helping answer.

Thanks for clarifying, please find an attached article that I hope will help answer your question.  Briefly, I know very little about the measurement of body composition (overweight and obesity) by MRI, except that is very accurate measure of regional adiposity.  

There are several measurements, and like with all measurements, you have to answer 1) How accurate and acceptable do you want your measure to be, and 2) How practical is this measure for your study in terms of cost (monetary, time, etc).  For instance, the current gold-standard measurement is the dual energy x ray absortiometer (DXA), which uses a multi-component model to distinguish fat mass from bone, water, and lean tissue.  However, the instrument itself can cost up to $30,000, requires trained personnel to operate, and can take up to 30 minutes to complete.  By contrast, calculating an individual's BMI (weight/height2) measuring waist circumference have more general assumptions, but can be done more rapidly among a large population, where they correlate very well with central adiposity and cardiovascular disease risk.

In our lab, we use bioelectrical impedance.  This is a two-compartment model, which means it only distinguishes fat vs non-fat, but the contributions of organ and bone mass to lean mass is largely fixed in non-elderly adults.  There is the assumption that the individual be hydrated, but this can be verified by checking urine color prior to measurement.

Hope this helps.  There are plenty of measures, the key is to identify which is best for you.

Patrick Austin thanks

A new way of thinking, I found in your answer.

To be used  by you  for   avoid bullyng the method must be easy : Body mass index for < 25 and obesity < 30 (weight/height2. , Waist circumference is useful for identify  visceral obesity. There are ethnical variantions, as well in men vs women