Chapter 6 & 7
Proximal Obstruction
Venous Reflux
Normal Venous Flow
Distal Obstruction
Circulatory stasis and hypocoagulability with intimal injury
Circulatory stasis, hypercoagulability and intimal injury
High cardiac output and intimal injury
Intimal injury, hypercoagulability and poor stroke volume
Normal Flow
Femoral Vein Thrombosis
IVC Obstruction
Iliac Vein Obstruction
Hematoma
Ganglion Cyst
Baker's Cyst
Lymph Node
True
False
Stasis Dermatitis
Lymph Edema
Homan's Sign
Phlegmasia Cerulea Dolens
Cockett's
Boyd's
Hunterian
Dodd's
External Iliac Valve
Terminal Valve
Mitral Valve
Sapheno-Popliteal Valve
Arterial Occlusive Disease
IVC Filter
Chronic Venous Outflow Obstruction
Atresic Great Saphenous Vein
0.35 second
0.5 second
1 second
2 seconds
> 1 mm
> 1.5 mm
> 2 mm
> 2.5 mm
> 3.5 mm
It lies Posterior to the Artery
It's Lateral to the Artery
It's Medial to the Artery
It lies Anterior to the Artery
Marfan's Syndrome
Nutcracker Syndrome
Arcuate Ligament Syndrome
May-Thurner Syndrome
Insufficiency caused by chronic outflow obstruction
Insufficiency caused by congenital absence of valves
Insufficiency resulting from previous deep vein thrombosis
Insufficiency resulting from poor arterial inflow
Popliteal
Great Saphenous
Common Femoral
Proximal Femoral
Supine
Sitting, leg dependent
Trendelenburg
Semi-Fowler's
Velocity is already known
Velocity calculation is not necessary
Doppler angle can be at 90 degrees
Flow direction is not important