Figure 2From: Magnetic resonance guided focused ultrasound for noninvasive pain therapy of osteoid osteoma in childrenRepresentative thermal map from one of the treatment sonications. A 50W exposure produced a maximum temperature above 55°C at the bone surface. A small region (approximately 1 x 4 mm) adjacent to the osteoid osteoma reached sufficient temperatures to achieve a thermal dose of 240EM@43°C, causing necrosis.Back to article page