comprehensive study of magnetic resonance angiography of circle of Willis in population of Western Uttar Pradesh

Background: Circulus Arteriosus cerebrii, another name for Circle of Willis, establishes a polygonal anastomotic channel between two internal carotid arteries and vertebral arteries. The arterial circle is located in the interpeduncular fossa, near base brain. It has been established through anatomical radiological studies that there are variations healthy persons. Aim: To evaluate Willis supplying brain Magnetic Resonance Angiography (MRA) population western UP. Methods Materials: This cross-sectional study included 264 patients who met inclusion criteria. Non-contrast was carried out among individuals after written informed consent. (circle Willis) scanning protocol consisted 3-dimensional time flight Trans axial acquisition. MRA performed on GE 1.5 TESLA Optima MRI machine. Brain angiography images were viewed normal pattern anatomy their variations. Results: complete variant male 58.9% (n=103) while females it 59.6% (n=53). incomplete & 41.1% (n=72) 40.4% (n=36) respectively.