Multi-location exchange of medical images and data

A method to exchange medical data between a cloud repository on a cloud server and a plurality of local repositories on a plurality of local servers connected to the cloud server. The plurality of local servers comprises a first local server and the plurality of local repositories comprises a first local repository on the first local server. The method includes, causing the first local server to: transmit an image retrieval request to the cloud server, receive the medical image generated by the cloud server or an instruction from the cloud server to generate the medical image locally, and display the generated medical image on a display. The image retrieval request causes the cloud server to determine whether raw image data associated with the image retrieval request is stored in the cloud repository or locally in the first local repository.