Patent ID: 11955243
Assignee: OPTELLUM LIMITED
Field: Medical technology (Instruments)
Classification: CPC G  A | IPC A  G

Claim 13:
14. A computer aided diagnosis lung disease risk measurement system comprising:
an input circuit for receiving a plurality of inputs in an input sequence for a subject, each input comprising at least one image showing all or part of the lungs of a patient and a time stamp for the image, where the inputs are obtained at varying intervals;
an analysis circuit comprising an input data encoder and a time stamp encoder for analysing the inputs using a machine learning model to assess temporal changes in the images using the input data encoder and a time stamp encoder wherein the input data encoder identifies patterns in the input data and encodes the result of the input processing as an input data descriptor; and the time stamp encoder parses time information about the image as a vector tN;
wherein the output from at least one encoder is provided to a system state calculator, and the system state calculator encodes a summary of all the input data received at that time;
wherein system state calculator is updated via a feedback system, to take account of data from successive images, where for each new input data the system state calculator calculates a new system state using input units remaining in the sequence of input units until the sequence of input units is exhausted;
said analysis circuit further comprising to a score calculator for receiving the output of the system state calculator to calculate a risk score;
and an output circuit for outputting the risk score indicating the lung disease risk for the subject, wherein the risk score is the risk score obtained after the final input unit has been presented to the system.