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AORTIC VALVE
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VALVULAR ANATOMY

AORTIC VALVE


  • The main coronary trunks can be considered to lie in one of two orthogonal planes
  • The LAD and PDA lie in the plane of the interventricular septum,
  • RCA and Circumflex coronary trunks lie in the plane of the atrioventricular valves
  • LAO 60° Projection:  is looking down the interventricular septum plane, with the AV valves plan seen en face
  • RAO 30° Projection: is looking down the AV valves plan, with the interventricular septum plan seen en face

Picture
LAO View - RCA

LAO View: Best for demonstrating :
  1. Ostium of the RCA
  2. Mid-portion of RCA
  3. Bifurcation of the posterolateral branch (PL ) and the posterior descending branch (PDA)  
Picture
RAO View - RCA

RAO View: Best  for demonstrating:
  1. Mid-portion of the RCA
  2. Extent of the PDA. 
  3. Ostium is not well imaged in this view.

Picture
RAO CAUDAL - LCA
RAO Caudal view is best for
  1. Distal Left Main Stem (LMS)
  2. Proximal segment of the LAD
  3. Circumflex artery (Cx) and its branches
Picture
RAO CRANIAL - LCA

RAO Cranial view is best for the LAD and diagonal branches
Picture
LATERAL VIEW - LCA

LAO (90°) Straight (Lateral) View: shows the Mid-LAD and the Circumflex arteries
Picture
LAO CRANIAL - LCA

LAO Cranial View: Best demonstrating 
  1. Ostium of the LMS
  2. Origin of the diagonals from the LAD
Picture
SPIDER VIEW - LAO CAUDAL
Picture
SPIDER VIEW - LAO CAUDAL
Picture
SPIDER VIEW - LAO CAUDAL
LAO Caudal View (SPIDER VIEW): Best for 
  1. Distal LMS
  2. Proximal LAD
  3. Proximal Circumflex artery
  4. Ramus Intermedius branch (RI)

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