Performance Analysis of BlockChain-based Medical Records Management System

Medical diagnostics such as medical tests, x-rays etc. are stored in two ways- Physical records and Online records, which cannot be accessed by patients without authorized permission. Even doctors/medical professionals do not get this data during crucial times. This could be avoided by sharing medical data of patients to the doctors and patient directly. Present storage method is also at a security threat of being tampered and accessed by unauthorized. This paper proposes blockchain network to address the issues related to medical records system which is easily accessed by the patient or doctor to take better and effective decisions ensuring immutability. Doctors view/update past visits for a medical record, if given the permission to by the respective patients. The proposed model uses Hyperledger Composer, Composer REST server, Hyperledger Fabric and Angular 4. Hyperledger Fabric is a permissioned blockchain framework thus allowing the model to have permission control. The UI allows doctors/patients to easily access the patients records as and when required. The patients grant permission to a particular doctor when required and revoke access once the doctor as completed a visit. Similarly every doctor is allowed to view a patients data only when granted permission and is then allowed to update the history. Only a doctor can update the patient's history to ensure data integrity.