Tag Archives: anatomy

Posterior Cerebral Artery Branches

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4 anatomic segments of the PCA:

  1. P1 segment: from tip of basilar to origin of PComm
  2. P2 segment: from Pcomm to dorsal midbrain
    1. P2A – anterior segment
    2. P2P – posterior segment
  3. P3 segment: from lateral quad cistern at origin of post temporal artery to ant limit of calcarine fissure
  4. P4 segment:  terminal cortical branches of PCA after takeoff of parieto-occipital and calcarine arteries

 

REFERENCE:

AJNR Am J Neuroradiol. 2001 Jan;22(1):27-34. “Aneurysms of the posterior cerebral artery: classification and endovascular treatment.”   Ciceri EF1, Klucznik RP, Grossman RG, Rose JE, Mawad ME.

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ICA Segments

Segmental classification of internal carotid artery:

CMTR_0246_2_R01

Reference:

Lee, Thomas et al. “Management Of Carotid Artery Trauma”. Craniomaxillofacial Trauma and Reconstruction 07.03 (2014): 175-189.

PCA Angiographic Anatomy

Course of the P1, P2, and P3 segments of the PCA in the AP view.

  • Posterior thalamo-perforating branches (P)
  • medial (M) and lateral (L) posterior choroidal arteries

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Reference:

Bradač, G. B. Cerebral Angiography. Berlin: Springer, 2011. Print.

PCA Angiographic Anatomy Lateral

Course of the PCA and its branches in the lateral view

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  • Anterior from PComA and posterior from P1
  • thalamo-perforating arteries (p)
  • thalamogeniculate artery (G)
  • posterior choroidal arteries
  • medial (M), lateral (L), splenial artery (S)
  • parieto-occipital  arteries (PO)
  • calcarine artery (CA)
  • temporal arteries (T)
  • anastomoses with ACA and MCA (………)

Reference:

Bradač, G. B. Cerebral Angiography. Berlin: Springer, 2011. Print.

Anterior Cerebral Artery Angiographic Anatomy

AP View of PCA

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  • P1, P2, P3, and P4 segments of PCA
  • Anterior temporal artery (AT)
  • middle temporal and temporo-occipital branches (T)
  • calcarine artery (CA)
  • parieto-occipital artery (PA)

 

Reference:

Bradač, G. B. Cerebral Angiography. Berlin: Springer, 2011. Print.

MCA Angiographic Anatomy

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  • Segments of the MCA: M1, M2, M3, M4
  • Deep perforators from M1
  • Medullary arteries (short and long branches) from cortical branches (M)
  • Anastomoses with ACA  (———-)

 

Reference:

Bradač, G. B. Cerebral Angiography. Berlin: Springer, 2011. Print.

Anterior Cerebral Artery Angiographic Anatomy

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  • ACA segments: A1, A2, A3, A4
  • Deep perforators from A1
  • Artery of Heubner (double arrow)
  • Medullary arteries (M, short and long branches) from cortical branches
  • Leptomeningeal anastomosis with MCA (——–)

Reference:

Bradač, G. B. Cerebral Angiography. Berlin: Springer, 2011. Print.