medical question

anksta

anksta

anksta

Soldato
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19 Jan 2005
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Well, biomedical question, does anyone know what the density of thrombus is? Or more specifically, why nowhere in the world/internet seems to have a value for it? I know it must vary depending on loads of factors etc. but there aren't even any quoted values for specific studies.

I need it for my dissertation, its literally the last thing I need and then I'm finished. It's doing my head in thoguh and my tutor wont answer my emails. This is my last resort.

Anyone knows or finds a realistic value I will PayPal them 3 quid. Cheers.
 
Change the title, i'm sure the thread content is allowed but the title will just get responses like above.
 
I thought it would at least make people look if that was the title, technically it is a medical question, even if its not medicine based.

Anyone know?
 
This any good?

Thrombi from 22 patients, mean weight 3.4g, mean vol. 3.2cm cubed = about 1.06g per cm cubed.

It's not quite my area of biology though, you might want to check it really is what you're looking for.
 
mate, I love you. How did you find that? Gives a pretty reasonable answer.

I'm a man of my word and will pay up. however, however I forgot to mention that I also need a value for viscosity. If you, or anyone else for that matter, figures it out for me in kg/m-s then I'll pay them another 3quid and give you Art, a 5er.

Nice one.
 
i dont have access to the journals which contain the information you require, and 5 minutes is all i could bother

here is my guess..

0.556424g per cm3
 
anksta said:
mate, I love you. How did you find that? Gives a pretty reasonable answer.
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No worries, I found it via Google. Can't remember the word combination.

As for viscosity I'm totally out of my depth there, but there's a book here giving apparent thrombus viscosity in poise, if that makes any sense to you.

EDIT: there's a hypertension paper here giving values for hypertension and normal patients, ~564 poise according to them. Quite a bit different.

EDIT EDIT: Whoops, just spotted you asked for it in kg/m-s. Apparently they're convertible though, so ~564 poise should be about 56.4 Kg/m-s.
 
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Art said:
No worries, I found it via Google. Can't remember the word combination.

As for viscosity I'm totally out of my depth there, but there's a book here giving apparent thrombus viscosity in poise, if that makes any sense to you.

EDIT: there's a hypertension paper here giving values for hypertension and normal patients, ~564 poise according to them. Quite a bit different.

EDIT EDIT: Whoops, just spotted you asked for it in kg/m-s. Apparently they're convertible though, so ~564 poise should be about 56.4 Kg/m-s.
Click to expand...

hmm, cheers for that study. 56.4kg/m-s though sounds a bit too large. Given that the viscosity for blood I'm using is 0.0035kg/m-s I think its a bit unlikely to be so large. Are you sure that conversion is right? I have 1 Poise as 0.1kg/m-2 so I think your conversion is right but are you sure that it isn't 564 centiPoise? I cant find that figure in the abstract to that journal but that would make it 0.564kg/m-s. Sounds a lot more likely given what thrombus is (really thick blood).
 
anksta said:
hmm, cheers for that study. 56.4kg/m-s though sounds a bit too large. Given that the viscosity for blood I'm using is 0.0035kg/m-s I think its a bit unlikely to be so large. Are you sure that conversion is right? I have 1 Poise as 0.1kg/m-2 so I think your conversion is right but are you sure that it isn't 564 centiPoise? I cant find that figure in the abstract to that journal but that would make it 0.564kg/m-s. Sounds a lot more likely given what thrombus is (really thick blood).
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Try digging through the paper, I don't think I was logged into Athens when I downloaded it so you should be able to get it. The maximum value they gave was about 56,400 centipoise for some reason. You'll know this better than I do though, your gut instinct is probably right. The first link says 2-12 poise though, so does 1.2 kg/m-s sound any better?
 
Art said:
Try digging through the paper, I don't think I was logged into Athens when I downloaded it so you should be able to get it. The maximum value they gave was about 56,400 centipoise for some reason. You'll know this better than I do though, your gut instinct is probably right. The first link says 2-12 poise though, so does 1.2 kg/m-s sound any better?
Click to expand...

Are you sure the comma wasn't being treated as we treat a decimal place? Some countries/people are funny like that :p
 
when I put in 56.4 the convergence monitors go up off the chart whereas when i put in 0.564 they seem to converge quite nicely. I cant just put in that though without any verification, need to be sure.

I appreciate this by the way, the deadlines on tuesday and I've got about 6000 words to write this weekend. Cant do it though without havin a justified model.
 
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