This article examines in-vivo microanatomy of the subcallosal artery branching from the anterior communicating artery (ACoA) using time-of-flight (TOF) magnetic resonance angiography (MRA) at 7 Tesla, proving that high-resolution in-vivo 7 T TOF MRA can precisely show the microanatomy of the subcallosal artery.

Key Points:

• In-vivo 7 Tesla TOF MRA can delineate the subcallosal artery microanatomy.

• Three distinct course patterns of the subcallosal artery were identified.

• Branching angles from ACoA significantly differed between subcallosal artery course patterns.

Article: Microanatomy of the subcallosal artery: an in-vivo 7 T magnetic resonance angiography study

Authors: Toshinori Matsushige,  Bixia Chen, Philipp Dammann et al.