1. A method for reducing latency in a client-server computer system, the server being adapted for generating data at least dependent on one or more parameter values, the method being used in a hospital environment and comprising the steps: predicting possible reachable future parameter values, predicting possible future parameter values being performed by the client, after which these predicted parameter values are sent to the server; generating data corresponding to the predicted parameter values, and sending this data to the client, wherein the parameter values are values for displaying images on the client and the generated data are medical images for displaying on the client, and the client caching this generated data corresponding to parameter values for future use, and if there is no or insufficient correlation between predicted parameters sent to the server and data generated by the server, then sending of predicted parameters is stopped; and wherein the generated data is sent to the client after a stable condition is reached after the predicted possible future parameter values are sent by client to the server, wherein if the stable condition is not reached, then the servers sends metadata to the client indicating that the predicted possible future parameter values are not correlated to the data generated by the server.