Download - venous drainage of the lower limb
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Venous system anatomy of the lower limb
14 September 2012Dept. Diagnostic Radiology UFS
M. Pieters
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Configuration Superficial venous system Deep venous system Intercommunicating veins
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Blood flow mechanism From superficial system to deep system Soleal Pump Mechanism Valves
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Venous valve on Ultrasound
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Doppler US – Incompetent valve in great saphenous vein
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Superficial Veins Drain subcutaneous tissues Two main channels
• Lesser (short) saphenous vein• Great (long) saphenous vein
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Lesser saphenous vein Arises at lateral side of dorsal venous arch Passes posterior to Lateral Malleolus Passes superiorly at posterior aspect of
calf Pierces fascia of popliteal fossa Drains into Popliteal vein @ SP-junction Short saphenous perforators continue
superiorly -> Great saphenous and Deep femoral veins
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Lesser Saphenous vein
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Great Saphenous Vein Arises at medial aspect of dorsal venous
arch Passes anterior to Medial Malleolus Courses superiorly in medial aspect of
leg Empties into Femoral Vein via
Saphenous opening in lower part of inguinal triangle
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Great Saphenous Vein cont.. Communicates with deep veins via a
variable amount and arrangement of perforating veins
Inconstant except :• Above ankle at medial aspect• Above the knee at medial aspect
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Geater Saphenous vein
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Superficial veins
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Venogram(Superficial veins)
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Deep Venous System Paired with namesake arteries as venae
commitantes Arise as: • Digital and metatarsal veins in the sole• Medial and Lateral Plantar veins• Unite to form the Posterior Tibial Veins
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Deep Venous System cont…
Anterior Tibial Veins:• Arise as Venae commitantes
of Dorsalis Pedis Artery• Pass posteriorly through
upper interosseuous membrane
• Join Posterior Tibial Veins to form the Popliteal Vein
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Deep Venous System cont… Popliteal vein traverses the Adductor
Hiatus -> forms Superficial Femoral Vein Superficial Femoral Vein passes under
inguinal ligament -> External Iliac Vein Deep Femoral Veins drain the posterior
aspect of the thigh into the Common Femoral Vein
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Deep Venous System
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Venogram (Deep venous system)
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CT Venogram
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Iliac Veins The Internal and External
Iliac Veins accompany their namesake arteries
Lie postero-medially to the arteries
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Iliac Veins Common Iliac Vein• Forms anterior to the SI-joint• Unites with contralateral Common Iliac
Vein - on right side of L5 vertebra -> IVC• The Right Common Iliac Vein lies
posterolaterally to the Right Common Iliac Artery
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Congenital Abnormalities Sacrocardinal veins fromed @ 7th week Left Common Iliac Vein anastomoses
with the Sacrocardinal veins The Right Sacrocardinal Vein later
becomes the Sacrocardinal segment of the IVC
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Congenital Abnormalities Estimated 1% incidence Most common is the Double IVC (0.2-
3%)• Left sacrocardinal veins fails to
disconnect from the Left Subcardinal Vein
• Left Cava rejoins the Right Cava via the Left Renal Vein
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Cockett’s Point The left Common Iliac Vein is longer and
is crossed by the Right Common Iliac Artery
Filling defects due to flow phenomenon in the Left Common Iliac Vein
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May-Thurner Syndrome (Cockett syndrome; iliocaval
compression syndrome) Anatomical variant - Compression of Left
common iliac vein by the Right common iliac artery
DVT formation may result May be asymptomatic DX on CT or MR venogram May be missed on US
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May-Thurner Syndrome
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May-Thurner Syndrome
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May-Thurner Syndrome MR-venogram
November 2004 Radiology,233, 361-365.
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Bibliography Applied Radiological Anatomy: Butler
Atlas of Vascular Anatomy an Angiographic Approach: Second Edition. Philadelphia, Lippincott Williams & Wilkins © 2007
November 2004 Radiology,233, 361-365 : May-Thurner Syndrome – Barbaros et al
Journal of Vascular Surgery Volume 40 issue 4, October 2004, Pages 604–611: Re-evaluation of iliac compression syndrome using magnetic resonance imaging in patients with acute deep venous thromboses – Douglas G.W. Fraser
http://www.phlebolymphology.org New computer tools for virtual dissection to study the anatomy of the vascular system - Jean-François et al
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Thank you