Venous Duplex Imaging Flashcards
What imaging capability is able to locate disease, determine if it is acute, chronic, partial or complete
Venous duplex
What is the patient position for a venous duplex exam
reverse trendelenburg
What kind of DVT is dark, dilated, and incompressible
a) acute
b) chronic
a) acute
What kind of DVT has a larger vein size, spongy texture, and the walls are poorly attached
a) acute
b) chronic
a) acute
What is a superficial vein that is thrombosed called
superficial thrombophlebitis
True or False
If a superficial vein is thrombosed is it considered a DVT
False
What type of DVT is smaller in size, and has thicker walls
a) acute
b) chronic
b) chronic
What type of DVT has hyperechoic striations and linear bands scattered within the vessel
a) acute
b) chronic
b) chronic
What type of DVT does flow recanalize throughout the vessel, has patchy color flow, and is partially compressible
a) acute
b) chronic
b) chronic
For venous insufficiency flow should augment __________ Valsalva or proximal compression
During
For venous insufficiency flow is _________ through valves during the maneuvers
retrograde
Reflux lasting > ______ sec is considered valvular incompetence
0.5
Normal valve closure time is about how many sec
0.5
What is the normal flow direction for a venous duplex exam
a) superficial to deep
b) deep to superficial
a) superficial to deep
What color should a venous duplex exam exhibit
a) blue or negative
b) red or positive
a) blue or negative
During valsalva the color will turn ______ when abnormal
a) blue
b) red
b) red
Where are lymph nodes usually found
in the groin
Fluid found infiltrating tissue is called
Edema
Fluid fond at the joint thats located anterior to the bone is called
Joint effusion
A cyst filled with synovial fluid found in the medial popliteal fossa is called
Baker cyst
What is the normal flow of the portal vein
Hepatopedal (towards the liver) and minimally phasic and continuous
Increased pressure in the portal system most likely caused by cirrhosis of the liver and other chronic liver diseases is called
Portal hypertension
What is the flow direction of the ICV and hepatic veins
Hepatofugal and triphasic
Occlusion of the hepatic veins and possibly ICV is called what
Budd-Chiari
Enlargement of the hepatic veins and IVC is caused by what
Right sided heart failure
If you find an IVC tumor what organ do you check next
Kidneys
An invasion from renal cell carcinoma would cause what type of tumor
IVC
What is consistent with continuous waveform in the left subclavian vein and pulsatile in the right
a) SVC syndrome
b) congestive heart failure
c) left innominate vein obstruction
d) left internal jugular vein obstruction
c) left innominate vein obstruction
-A continuous waveform means there is a proximal venous obstruction. Since the waveform is only on 1 side, the obstruction is isolated just proximal to that side
Which of the following would be a normal velocity for the portal vein
a) 5 cm/sec
b) 50 cm/sec
c) 30 cm/sec
d) 15 cm/sec
c) 30 cm/sec
-The normal range for the portal vein is 20-40 cm/s
What does normal coaptation indicate
a) absence of distal obstruction
b) pulsatile and spontaneous flow
c) valvular competence
d) absence of thrombus
d) absence of thrombus
-coaptation means the veins fully compress. There is nothing inside them
If the portal vein is enlarged, which other vessel may show abnormality
a) hepatic artery
b) IVC
c) hepatic vein
d) coronary vein
d) coronary vein
What patient position would be most useful in a patient presenting with swelling, brawny discoloration and varicose veins
a) reverse trendelenburg
b) trendelenburg
c) limb elevated
d) tip toes
a) reverse trendelenburg
What is the name of the perforating veins located in the upper thigh?
a) cocketts
b) boyd’s
c) hunterian
d) dodd’s
d) dodd’s
Incompetence in this valve often leads to the entire GSV being incompetent. Name this valve?
a) external iliac valve
b) terminal valve
c) mitral valve
d) sapheno-popliteal valve
b) terminal valve
With the patient standing, what time value is the threshold between normal and abnormal reflux in the deep veins?
a) 0.35 seconds
b) 0.5 seconds
c) 1 second
d) 2 seconds
c) 1 second
Perforating veins should be evaluated with the patient in which of the following positions?
a) supine
b) sitting, leg dependent
c) trendelenburg
d) semi-fowlers
b) sitting, leg dependent
Why is doppler angle correction not necessary in venous imaging?
a) velocity is already known
b) velocity calculation is not necessary
c) doppler angle can be at 90 degrees
d) flow direction is not important
b) velocity calculation is not necessary
