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Contrast

Contrast

a dye injected intravenously during x-ray studies, for example CT, to enhance the image of a tumour. In MR studies, the contrast is called gadolinium. The use of contrast may rarely result in some adverse effects: it also increases the cost (but also accuracy in many cases) of the scan.


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Compare and contrast between Myxomycota and Eumycota.

Compare and contrast between Myxomycota and Eumycota. I have done research but to no avail, please help me about the question above.

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by Rizwaankhan
Mon Dec 30, 2013 1:37 pm
 
Forum: Human Biology
Topic: Compare and contrast between Myxomycota and Eumycota.
Replies: 0
Views: 328

fluoroscopy

... a)The technique is based on differential penetration of X-rays into different tissues. b)Blood vessels can be highlighted without the need of a contrast medium. c)Requires subtraction techniques to produce a clear image of blood vessels. d)It does not allow constant imaging of blood vessels ...

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by zak
Sat Dec 28, 2013 4:43 pm
 
Forum: Human Biology
Topic: fluoroscopy
Replies: 1
Views: 575

biology Fluroscopy

... a)The technique is based on differential penetration of X-rays into different tissues. b)Blood vessels can be highlighted without the need of a contrast medium. c)Requires subtraction techniques to produce a clear image of blood vessels. d)It does not allow constant imaging of blood vessels ...

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by zak
Tue Dec 17, 2013 10:26 am
 
Forum: General Discussion
Topic: biology Fluroscopy
Replies: 0
Views: 407

Please help me decide which microscope to buy

I'm not sure what an inverted microscope is, but if you're looking at unstained cells, some special beam arrangements should be there - phase contrast, dark field, something...

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by Darby
Wed Nov 06, 2013 6:42 pm
 
Forum: General Discussion
Topic: Please help me decide which microscope to buy
Replies: 2
Views: 789

Re:

... by genetic drift. Or the tool-making traits may have certain disadvantages, such as higher energy requirements, that simply aren't worth it. In contrast, if this population cannot establish reproductive barriers, then neither bulkiness nor lightweightedness will be strongly favored since neither ...

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by wildfunguy
Sat Oct 19, 2013 3:13 pm
 
Forum: Evolution
Topic: Is complexity inevitable?
Replies: 16
Views: 4652
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