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What is Current Density Imaging? Current Density Imaging (CDI) is an imaging technique that measures electrical current density vectors in a volume of material/tissue which can be imaged using Magnetic Resonance Imaging (MRI). Measurements are performed by applying an external current to the material/tissue during an MRI acquisition. The magnetic fields produced by the applied current are mapped onto the phase images* of the MRI acquisition. The phase images are processed to compute the current density vectors. Performing CDI requires an MRI system, additional hardware, a modified pulse sequence (PSD) and data processing software. CDI was developed by Greig C. Scott, Michael L.G. Joy and R. Mark Henkelman in 1988 at the University of Toronto (Canada). The CDI Research Group is presently based at the University of Toronto and is supervised by Michael L.G. Joy. Look for the CDI Research Group at upcoming conferences. 
*Some variations of CDI encode information onto magnitude images.
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