Generate a 2D-rendered image of a human brain scan in top view. The brain should be outlined in glowing cyan, with the interior in deep shades of blue and purple, showing symmetrical detail. The background should be a smooth gradient transitioning from dark blue on the left to lighter shades of blue on the right. Ensure the brain scan appears vibrant and sharp against the background, with a clean, modern, and minimalistic style. No text or additional elements, focusing solely on the brain scan and the gradient background."