Fig. 2

a, b Schematic sagittal diagram of normal knee anatomy and sagittal PDFS MRI of normal knee anatomy show the popliteal artery (arrowhead) located posterior to the popliteal muscle (PM). c, d Schematic sagittal diagram and sagittal PDFS MRI of the knee that show the aberrant anterior tibial artery (arrow) between the tibial cortex and the popliteal muscle (PM). Fibula (F), Gastrocnemius muscle media head (GMmh), Gastrocnemius muscle lateral head (GMlh). Figure created by J. Marin-Concha