Fig. 2From: Pelvic cardiovascular magnetic resonance venography: venous changes with patient position and hydration statusProne vs. Supine scan positions in dehydrated and hydrated healthy subject. Common femoral veins (white arrows) appear larger in the prone position (top images) when compared to supine position (bottom images). Veins are noticeably smaller when the volunteer was dehydrated (left images) versus hydrated (right images)Back to article page