Question 1

On a kidney ultrasound some spots and red and blue what does this mean?

Accepted Answer

A regular ultrasound shows shades of black and white to identify kidney sizes and structures. 
A doppler senses flow to (red) and from (blue) the probe.  Doppler ultrasound is used to rule out renal artery stenosis and venous obstruction in the kidneys.

Question 2

What does having more blue than red mean on a color doppler transvag ultrasound?

Accepted Answer

By convention the red usually means blood flow toward the ultrasound transducer and blue is flow away.

Question 3

Why is it that there were only red and blue dots on one of my kidneys and not the other in an ultrasound?

Accepted Answer

The presence of red or blue dots on Doppler ultrasound study merely gives a rough indirect saying if arterial or venous blood there; they may not say much about how important they are. But, if a mass is suspected, need to further define its nature with either CT or MRI (usually CT), if clinical condition deemed necessary. e.g., evaluating blood in the urine. For individual need, ask Doc timely.

Question 4

Ultrasound of the liver showing two frames with red color, what does this mean?

Accepted Answer

Those are images with doppler of the blood flow in hepatic vessels.

Question 5

What did the red and blue spots on my pelvic ultrasound mean?

Accepted Answer

The dots are the arterial blood flow(red)  venous (blue).

Question 6

What does it mean in a ultrasound when there is the colour red on a thyroid lump. is that bad ?

Accepted Answer

On ultrasound, typically the color mode gives an indication of blood supply to an area.  So seeing red, particularly fluctuating red, in many machines means that there is arterial blood supply.  This is not by itself necessarily good or bad, it requires interpretation by a radiologist.  You are always free to ask a technician "what does that mean"?  Though in some cases they might not answer.

Question 7

I have been having calf pain without swelling or redness etc. i had a ultrasound done and no clots in my legs. this was done in september. do i need to be retested or should i not worry about clots since previous u/s was normal? thank you!

Accepted Answer

Calf pain can be from the muscle or from problems with the nerve that connects and controls it. The nerve controlling the calf muscle comes from the back and calf pain is common from back problems even without back pain.  It is possible that it can be a circulation problem. I wonder if the artery circulation was checked.  You need to evaluated by a doctor to understand this better.

Question 8

What type of lesions might not show up on an mri or ultrasound? after two ultrasounds, a non-contrast mri, u/s vein mapping/doppler - not even edema is showing up on the images, and there are numerous palpable arm lumps (no redness, no heat)?

Accepted Answer

I suggest that you see a doctor in person. I am not sure how to address your question based on the available details

Question 9

I have had pain in my right calf, just below the large muscle for a week or so. little redness, ultrasound came back clear. what is causing this?

Accepted Answer

OK so if your ultrasound was 'OK' then we can safely assume this is not a blood clot. This may be Achilles Tendonitis. Check here to see if your symptoms fit.
http://www.mayoclinic.org/diseases-conditions/achilles-tendinitis/basics/definition/con-20024518

Question 10

For last ~6 mos, pain in upper, inside left arm. no lump, redness, pain on touch. had ultrasound/xray, found nada.  can't figure why! should i worry?

Accepted Answer

1. What provokes the pain (movement, lifting, etc.)
2. What improves the pain (movement, etc.)
3. Any muscle weakness?
4. What sort of work do you do?
5. Are you left/right handed?

What does red dots mean on a ultrasound

On a kidney ultrasound some spots and red and blue what does this mean?

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What does having more blue than red mean on a color doppler transvag ultrasound?

Why is it that there were only red and blue dots on one of my kidneys and not the other in an ultrasound?

Ultrasound of the liver showing two frames with red color, what does this mean?

What did the red and blue spots on my pelvic ultrasound mean?

What does it mean in a ultrasound when there is the colour red on a thyroid lump. is that bad ?

I have been having calf pain without swelling or redness etc. i had a ultrasound done and no clots in my legs. this was done in september. do i need to be retested or should i not worry about clots since previous u/s was normal? thank you!

What type of lesions might not show up on an mri or ultrasound? after two ultrasounds, a non-contrast mri, u/s vein mapping/doppler - not even edema is showing up on the images, and there are numerous palpable arm lumps (no redness, no heat)?

I have had pain in my right calf, just below the large muscle for a week or so. little redness, ultrasound came back clear. what is causing this?

For last ~6 mos, pain in upper, inside left arm. no lump, redness, pain on touch. had ultrasound/xray, found nada. can't figure why! should i worry?

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What does red dots mean on a ultrasound

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