http://imagej.273.s1.nabble.com/measuring-hounsefield-units-on-a-CT-tp5006460p5006522.html
On Sat, Feb 8, 2014 at 9:30 AM, Matthijs E. <
> Hi there,
>
> Im new to ImageJ and already I am at a loss of what to do next.
>
> I am a 4th year medical student and i am about to begin with a newly
> developed research method. My research is about whether abdominal visceral
> fat does have a prognostic factor regarding the outcome of patients who
> received colorectal cancer surgery. Compared to the standard BMI-indedx it
> is believed that a visceral fat index has a better prediction than the BMI
> on the outcome of the operation. Think about shorter OR-time, decreased
> blood loss, fewer post-operative complications, fewer anastomotic leakage
> etc.
>
> The way I will achieve this is by using ImageJ and pre-operative CT's of
> the
> pt (transverse plane of the abdomen). For each patient I use one coupe at 3
> different levels (e.g. umbilical, spina iliaca and xiphoid) the total
> amount
> of the measured visceral fat, based upon the 3 coupes, will give me an
> index.
>
> Now my problem is as follows. My professor is a busy men, obviously. He
> told
> me I should get to know the program, find a way to use ImageJ and then come
> back to him. Easier said than done. Hence, I seek the help of you.
>
> The idea is, that based upon the Hounsefield Units, I can differentiate
> between muscle, fat, visceral fat and other tissues. Previous studies have
> shown that I should look at a HU range of - 130HU and -90HU in order to
> find
> visceral fat. The total amount of visceral fat will eventually give me the
> index I need.
>
> According to my professor this could be easily done with ImageJ, yet he did
> not know how. That was my task to find out.
>
> Does anyone know how to achieve this? I found some tutorials but I am not
> sure whether this is what I need. ImageJ has literally an endless amount of
> options and plugins. (tutorial:
>
>
http://www.unige.ch/medecine/bioimaging/tricks/imagejtutorials/Quantification.pdf> )
>
> This might sound a little vague, hopefully somebody understands what I
> mean!
>
> Thanks in advance,
>
> Matthijs
>
>
>
>
>
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