Venous Ultrasound Flashcards
1
Q
What are the diagnostic criteria in DVT US
A
- compressibility
- altered blood flow pattern (lack of spontaneous flow, decreased or not augmentation response)
- echogenic material within the vein
2
Q
what is the most sensitive and specific criterion for the US diagnosis of DVT
A
lack of compressibility
3
Q
what can give a false positive appearance of lack of compressibility
A
when there is a proximal obstruction
