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Is Blockchain Technology Suitable for Managing Personal Health Records? Mixed-Methods Study to Test Feasibility
Yu Rang Park1, Eunsol Lee1, Wonjun Na2
1Department of Biomedical Systems Informatics, Yonsei University College of Medicine, Seoul, Republic of Korea.
Journal of Medical Internet Research
|February 9, 2019
Summary
This study demonstrates the feasibility of using blockchain for personal health records (PHRs). While possible, improvements in data size, privacy, and cost are needed for practical blockchain PHR platforms.
Area of Science:
- Health Informatics
- Blockchain Technology
- Data Management
Background:
- Limited feasibility studies exist on blockchain for personal health records (PHRs).
- Existing research highlights potential benefits but lacks empirical validation for PHR storage, propagation, and management.
Purpose of the Study:
- To investigate the utility of blockchain technology for managing personal health records (PHRs).
- To assess the feasibility of transactions and data propagation of PHRs within a private blockchain network.
Main Methods:
- A private blockchain network was established using Ethereum (v1.8.4).
- Verification involved de-identified PHRs from 300 patients across hospital and patient nodes.
- Analysis focused on transaction/propagation time and gas consumption for blockchain-based PHR management.
Main Results:
- 74 out of 300 patient records (24.7%) could not be loaded due to block size limitations.
- Transaction and propagation times varied based on data age and size, with older/larger datasets taking longer.
- Gas consumption was significant, particularly for larger data volumes, indicating high operational costs.
Conclusions:
- Exchanging personal health record data within a private blockchain network is feasible.
- Significant enhancements are necessary for practical blockchain PHR platforms, focusing on data size reduction, enhanced privacy, and cost efficiency.
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