A 41-year-old member asked:
can an ultrasound miss a dvt?
4 doctor answers
Dr. Christopher Dowd answered
19 years experience Internal Medicine
Yes but uncommon: No test is perfect, and so the answer is yes it could miss a dvt. However this is not common, and sometimes if it is missed it means it is a small clot or a clot in a smaller, more distal (farther away) leg vein. If you're unsure bring up your concerns with your doctor and have a discussion about what else could be going on.
Answered on May 23, 2015
Dr. Bac Nguyen answered
22 years experience Family Medicine
Yes..absolutely: This test is a good screening test for those being suspected of having a dvt, but it is not 100%. The location, the size of the dvt, and much dependence on the experty/skill of the tech performing the procedure. It is indeed a convenient/easy to do test. A venogram is the gold-standard, but it is a more involved test and requires a dye as well as exposure to radiation..I hope u r ok... Good luck..
Answered on Dec 26, 2016
Dr. Michael Korona answered
32 years experience Interventional Radiology
Sometimes: If symptoms persist get repeat ultrasound in 7 to 10 days.
Answered on Jan 12, 2017
A Verified Doctor answered
A US doctor answered Learn more
Unfortunately, yes: The most important factor in the accuracy of a venous ultrasound is skill and experience of the person doing the scan. Clots in calf veins are harder to find. The veins are smaller and the clots can be very small too. One real problem with scanning veins is the tremendous variation that occurs in the anatomy of different people's veins. As dr. Korona said, sometimes a repeat scan is needed.
Answered on Apr 30, 2017
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