Circle of Willis (angio-MRI)

These two photo galleries present the anatomy of Circle of Willis by means angio-MRI (Maximum Intensity Projection Time-Of-Flight).

Circle of Willis: AP view with rotations

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Image 1. Brain MRI, Time-of-flight, Circle of Willis. 1, Basilar artery. 2, Anterior cerebral artery (A1). 3, Anterior cerebral artery (A2). 4, Middle cerebral artery. 5, Internal carotid artery.

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• MRA of Circle of Willis. AP view with rotations. Image 1.    1, Basilar artery. 2, Anterior cerebral artery (A1). 3, Anterior cerebral artery (A2). 4, Middle cerebral artery. 5, Internal carotid artery.
• MRA of Circle of Willis. AP view with rotations. Image 2.    1, Internal carotid artery. 2, Posterior cerebral artery. 3, Anterior cerebral artery (A1). 4, Anterior cerebral artery (A2). 5, Middle cerebral artery. 6, Basilar artery. 7, Vertebral artery.
• MRA of Circle of Willis. AP view with rotations. Image 3.    1, Internal carotid artery. 2, Anterior cerebral artery. 3, Artère communicante antérieure. 4, Middle cerebral artery. 5, Posterior cerebral artery. 6, Vertebral artery. 7, Basilar artery.
• MRA of Circle of Willis. AP view with rotations. Image 4.    1, Internal carotid artery. 2, Anterior cerebral artery. 3, Middle cerebral artery. 4, Posterior cerebral artery. 5, Vertebral artery. 6, Basilar artery.
• MRA of Circle of Willis. AP view with rotations. Image 5.    1, Internal carotid artery. 2, Middle cerebral artery. 3, Anterior cerebral artery. 4, Vertebral artery. 5, Basilar artery.
• MRA of Circle of Willis. AP view with rotations. Image 6.    1, Internal carotid artery. 2, Middle cerebral artery. 3, Anterior cerebral artery. 4, Posterior cerebral artery. 5, Vertebral artery.
• MRA of Circle of Willis. AP view with rotations. Image 7.    1, Middle cerebral artery. 2, Internal carotid artery. 3, Anterior cerebral artery. 4, Internal carotid artery. 5, Posterior cerebral artery. 6, Vertebral artery.
• MRA of Circle of Willis. AP view with rotations. Image 8.    1, Middle cerebral artery. 2, Internal carotid artery. 3, Anterior cerebral artery. 4, Posterior cerebral artery.
• MRA of Circle of Willis. AP view with rotations. Image 9.    1, Internal carotid artery. 2, Middle cerebral artery. 3, Posterior cerebral artery.
• MRA of Circle of Willis. AP view with rotations. Image 10.    1, Internal carotid artery. 2, Vertebral artery. 3, Middle cerebral artery. 4, Posterior cerebral artery.
• MRA of Circle of Willis. AP view with rotations. Image 11.    1, Internal carotid artery. 2, Vertebral artery. 3, Basilar artery. 4, Middle cerebral artery.
• MRA of Circle of Willis. AP view with rotations. Image 12 of 12.    1, Internal carotid artery. 2, Vertebral artery. 3, Basilar artery. 4, Middle cerebral artery.

Circle of Willis: lateral view with rotations

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MRA of Circle of Willis. lateral view with rotations. Image 1.    1, Basilar artery. 2, Posterior cerebral artery. 3, Anterior cerebral artery (A2). 4, Internal carotid artery.

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• MRA of Circle of Willis. lateral view with rotations. Image 1.    1, Basilar artery. 2, Posterior cerebral artery. 3, Anterior cerebral artery (A2). 4, Internal carotid artery.
• MRA of Circle of Willis. lateral view with rotations. Image 2.    1, Vertebral artery. 2, Basilar artery. 3, Anterior cerebral artery. 4, Internal carotid artery.
• MRA of Circle of Willis. lateral view with rotations. Image 3.    1, Vertebral artery. 2, Internal carotid artery. 3, Basilar artery. 4, Anterior cerebral artery. 5, Middle cerebral artery.
• MRA of Circle of Willis. lateral view with rotations. Image 4.    1, Vertebral artery. 2, Internal carotid artery. 3, Basilar artery. 4, Anterior cerebral artery. 5, Middle cerebral artery.
• MRA of Circle of Willis. lateral view with rotations. Image 5.    1, Internal carotid artery. 2, Vertebral artery. 3, Basilar artery. 4, Middle cerebral artery. 5, Anterior cerebral artery.
• MRA of Circle of Willis. lateral view with rotations. Image 6.    1, Internal carotid artery. 2, Vertebral artery. 3, Basilar artery. 4, Middle cerebral artery. 5, Anterior cerebral artery.
• MRA of Circle of Willis. lateral view with rotations. Image 7.    1, Internal carotid artery. 2, Vertebral artery. 3, Basilar artery. 4, Middle cerebral artery. 5, Anterior cerebral artery. 6, Posterior cerebral artery.
• MRA of Circle of Willis. lateral view with rotations. Image 8.    1, Internal carotid artery. 2, Vertebral artery. 3, Basilar artery. 4, Middle cerebral artery. 5, Anterior cerebral artery. 6, Posterior cerebral artery.
• MRA of Circle of Willis. lateral view with rotations. Image 9.    1, Internal carotid artery. 2, Vertebral artery. 3, Basilar artery. 4, Middle cerebral artery. 5, Anterior cerebral artery. 6, Posterior cerebral artery.
• MRA of Circle of Willis. lateral view with rotations. Image 10.    1, Vertebral artery. 2, Internal carotid artery. 3, Middle cerebral artery. 4, Anterior cerebral artery. 5, Posterior cerebral artery. 6, Basilar artery.
• MRA of Circle of Willis. lateral view with rotations. Image 11.    1, Internal carotid artery. 2, Anterior cerebral artery. 3, Posterior cerebral artery. 4, Basilar artery. 5, Vertebral artery.
• MRA of Circle of Willis. lateral view with rotations. Image 12 of 12.    1, Internal carotid artery. 2, Anterior cerebral artery. 3, Posterior cerebral artery. 4, Basilar artery. 5, Vertebral artery.

Reference

• Harnsberger HR, Osborn AG, Ross JS, Moore KR, Salzman KL, Carrasco CR, Halmiton BE, Davidson HC, Wiggins RH. Diagnostic and Surgical Imaging Anatomy: Brain, Head and Neck, Spine. 3rd ed. Salt Lake City, Utah. Amirsys. 2007.
• Bourjat P, Veillon F. Imagerie radiologique tête et cou. Paris, Vigot. 1995.
• Gouazé A, Baumann JA, Dhem A. Sobota. Atlas d'Anatomie humaine. Tome 3. Système nerveux central, système nerveux autonome, organe des sens et peau, vaisseaux et nerfs périphériques. 1er éd. Paris, Maloine. 1977.
• Kahle W, Cabrol C. Anatomie. Tome 3: Système nerveux et organe des sens. 1er éd. Paris, Flammarion. 1979.