Detailed Knee anatomy with HU of each bone, cartilage and ligament. This anthropomorphic knee phantom allows the visualization of ligaments and cartilage. Close-to-human radiation absorption and HU for each anatomical structure as well as realistic artifacts. It shows femur, tibia, fibula, articular cartilage of patella, meniscus, cruciate ligament, medial collateral ligament, fibular collateral ligament and articular cartilage. Can be used for CT and plain X-ray.