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What Is The Difference Between A Venous Ultrasound Of The Legs And A Duplex Ultrasound?

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Posted on Thu, 3 Jul 2014
Question:
I need to know the difference between a venous ultrasound of the legs and a duplex ultrasound, or are they the same test. I would assume a vascular surgeon would be the correct person to ask this.
doctor
Answered by Dr. Indu Kumar (58 minutes later)
Brief Answer:
Yes,both are same tests.

Detailed Answer:
Hello XXXXXXX
Thanks for writing to HCM

Yes,both are same tests.

Duplex ultrasound comprises two elements: 1.Grayscale Ultrasound 2.Color-doppler Ultrasound.
Duplex ultrasound are used to assess both arterial and venous system of the body.

During duplex ultrasound, firstly grayscale ultrasound is done.It is used to visualize the basic structure of the body part. No motion or blood flow is assessed.
Then colour doppler is used to assess blood within an artery or vein.We can assess velocity of blood flow,any resistance etc.

Where as Venous ultrasound of the legs is used to asses venous system of the legs only.It uses same duplex ultrasound technique.First grayscale imaging is done then colour doppler is used to assess venous system.
So,we can use both terminology.

Ultrasound and duplex ultrasound are radiological tests performed by trained radiologist.

Hope I have answered your question.
Further queries are most welcome.

Take Care
Dr.Indu XXXXXXX
Above answer was peer-reviewed by : Dr. Prasad
doctor
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Follow up: Dr. Indu Kumar (8 hours later)
When I had the test done the technician went up and down my legs with no pause in between, so I was not aware that two tests were actually being done at the same time. Would there have been any pause in administering the test(s)? You say the tests are performed by a radiologist - I had a technician doing mine - do you mean the test(s) are READ by the radiologist? Is the duplex used to detect reflux within the valves and can it be seen if the valves are working properly?
doctor
Answered by Dr. Indu Kumar (35 minutes later)
Brief Answer:
Please find detail answer below.

Detailed Answer:
Hello XXXXXX
Thanks for writing back

Yes,Doppler findings are assessed by a radiologist.
During duplex ultrasound,both grayscale Ultrasound and colour-doppler techniques are used simultaneously.Only few buttons are needed to change the imaging.

During assessment of veins,we can assess valve status.Due to valve damage,there is regurgitation of blood which can be easily picked by colour doppler.So,we can judge that valves are competent or not.

Hope I have answered your question.
Further queries are most welcome.

Take Care
Dr.Indu XXXXXXX
Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
doctor
Answered by
Dr.
Dr. Indu Kumar

Radiologist

Practicing since :2004

Answered : 6729 Questions

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What Is The Difference Between A Venous Ultrasound Of The Legs And A Duplex Ultrasound?

Brief Answer: Yes,both are same tests. Detailed Answer: Hello XXXXXXX Thanks for writing to HCM Yes,both are same tests. Duplex ultrasound comprises two elements: 1.Grayscale Ultrasound 2.Color-doppler Ultrasound. Duplex ultrasound are used to assess both arterial and venous system of the body. During duplex ultrasound, firstly grayscale ultrasound is done.It is used to visualize the basic structure of the body part. No motion or blood flow is assessed. Then colour doppler is used to assess blood within an artery or vein.We can assess velocity of blood flow,any resistance etc. Where as Venous ultrasound of the legs is used to asses venous system of the legs only.It uses same duplex ultrasound technique.First grayscale imaging is done then colour doppler is used to assess venous system. So,we can use both terminology. Ultrasound and duplex ultrasound are radiological tests performed by trained radiologist. Hope I have answered your question. Further queries are most welcome. Take Care Dr.Indu XXXXXXX