Erratum

In the October article, “Value and Limitations of Diffusion-Weighted Imaging in Grading and Diagnosis of Pediatric Posterior Fossa Tumors” by Jaremko et al (2010;31:1613–16), a study by Koral et al¹¹ was cited as using single-voxel analysis to find minimum tumor apparent diffusion coefficients (ADC). In fact, this study used multi-voxel analysis, but computed ADC directly from source data rather than from archived images.