Quantitative T2 mapping is a valuable tool for studying OA changes. qDESS is a rapid sequence that provides accurate T2 measurements and SNR-efficient morphological imaging. B0 mapping is an auxiliary scan acquired to correct field inhomogeneity-induced errors using techniques such as WASSR and 2-GRE. This work proposes a method for B0 mapping that exploits the phase difference between the two echoes acquired with qDESS. The experiments with phantom and in-vivo simultaneous bilateral knee acquisitions showed that the B0 maps obtained with the qDESS method were in good agreement with those obtained using the WASSR method and the 2-GRE method.