Patient Consent Management by a Purpose-Based Consent Model for Electronic Health Record Based on Blockchain Technology / 대한의료정보학회지

Objectives@#Currently, patients’ consent is essential to use their medical records for various purposes; however, most people give their consent using paper forms and have no control over it. Healthcare organizations also have difficulties in dealing with patient consent. The objective of this research is to develop a system for patients to manage their consent flexibly and for healthcare organizations to obtain patient consent efficiently for a variety of purposes. @*Methods@#We introduce a new e-consent model, which uses a purpose-based access control scheme; it is implemented by a blockchain system using Hyperledger Fabric. All metadata of patient records, consents, and data access are written immutably on the blockchain and shared among participant organizations. We also created a blockchain chaincode that performs business logic managing patient consent. @*Results@#We developed a prototype and checked business logics with the chaincode by validating doctors’ data access with purpose-based consent of patients stored in the blockchain. The results demonstrate that our system provides a fine-grained way of handling medical staff ’s access requests with diverse intended purposes for accessing data. In addition, patients can create, update, and withdraw their consents in the blockchain. @*Conclusions@#Our consent model is a solution for consent management both for patients and healthcare organizations. Our system, as a blockchain-based solution that provides high reliability and availability with transparency and traceability, is expected to be used not only for patient data sharing in hospitals, but also for data donation for biobank research purposes.

Application of Blockchain to Maintaining Patient Records in Electronic Health Record for Enhanced Privacy, Scalability, and Availability / 대한의료정보학회지

The Personal Health Information Reference System based on e-P.O.Box Conception / 대한의료정보학회지

IT Strategic Headquarters of the Japanese government compiled the Priority Policy Program 2007, in which "Establishment of the structure for every citizen to be able to manage and utilize his health information by himself" and "Foundation of the e- Post-Office box for the realization of the social security service in aspects of people" are declared. For this purpose, a health information system is considered that delivers healthcare data to the server, where the data is to be individually self.administered by the owner. A patient can register his data, and download or reference it from any medical institution or home when necessary. We made a prototype system to realize such a personal health data referring system based on the e. post.office box concept. The system is to be used in field trial experiment with the staffs and students of Tokyo Institute of Technology using their ID Card. This prototype system is expected to be available for the policy suggestion in the realization of the e-P.O.Box stated in the Priority Policy Program of the government.