Abstract
Variations and anomalies in cerebral arteries include persistent primitive vessels that normally regress during early gestation [31] and arteries that normally persist to adult life but regress prematurely. Selective cerebral angiographic studies report numerous such variations and anomalies. Improved MRA image quality using 3-dimensional (3D) time-of-flight (TOF) technique permits incidental detection of even small anomalous arterial branches [66]. Although the variations and anomalies may have limited clinical significance, their correct diagnosis during MRA image interpretation is important to interventional neuroradiologists as well as neurosurgeons, who must be familiar with variations and anomalies in vascular anatomy as they prepare for surgery.
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Uchino, A. (2011). Cerebral Arterial Variations and Anomalies Diagnosed by MR Angiography. In: Takahashi, S. (eds) Neurovascular Imaging. Springer, London. https://doi.org/10.1007/978-1-84882-134-7_5
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