Abstract: Aspects of the disclosure are directed to protecting non-public data used in computer-based trials. Reports can be generated based on the computer-based trials that contain performance metrics or other data points to evaluate the computer-based trials. The reports can be viewed by data providers and/or trial providers without divulging the non-public data. Data providers can provide the non-public data for running the computer-based trials. Trial providers can run the computer-based trials. A cloud provider can provide infrastructure for storing source code for the computer-based trials, the non-public data, and reports generated from the computer-based trials. The cloud provider can also provide infrastructure for executing the computer-based trials and generating the reports from the computer-based trials.

Abstract: Typical electrical impedance tomography (“EIT”) systems apply current to a body under test and measure the induced voltages on the surface and then through an inverse process, reconstruct an approximation to the electrical conductivity in the interior. The EIT system described herein employs a new approach to evaluating the interior electrical conductivity by using a virtual short that allows both current and voltages to be measured at various locations on the body under test. The architecture of this system is described, distinguishability of embedded conductive anomalies is evaluated, typical error sources associated with a virtual short measurement is discussed in the context of electrical impedance tomography, and a new imaging system is discussed.