Value of the Data •The computational and processed data will enable readers to reproduce all our findings [1], and more importantly allow peer researchers to use the data as benchmarking to improve EMMI technique. •The data and simulation of geometrical changes can also be adapted to assess the accuracy of other types of electrophysiology imaging methods, such as electrocardiographic imaging (ECGI) [3], Electrogastrography imaging [4], etc. •Readers and researchers can take our work as the base and continue to incorporate more realistic geometrical deformation models and electrical noises to generate insights about the clinical EMMI translation and data interpretation.