A lightweight scalable and dynamic blockchain-based model for storing and retrieving patient healthcare records
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View abstract on PubMed
Summary
This summary is machine-generated.This study introduces DHC, a blockchain model for efficient healthcare data management. It enhances scalability and security, improving data access and privacy preservation.
Area Of Science
- Computer Science
- Health Informatics
- Blockchain Technology
Background
- Blockchain technology offers potential solutions for healthcare data management challenges, including scalability, trustworthiness, access speed, and patient privacy.
- Existing blockchain models face limitations in efficiently handling large volumes of sensitive healthcare data.
Purpose Of The Study
- To propose a lightweight, scalable, and dynamic blockchain-based model (DHC) for efficient storage and retrieval of patient healthcare records.
- To enhance blockchain network scalability and ensure data integrity in an off-chain environment.
- To develop a secure and privacy-preserving access-control mechanism for timely data retrieval.
Main Methods
- The DHC model utilizes novel data structures for off-chain storage in local dynamic blocks and chains.
- Local chains periodically announce final blocks to the main network for aggregation into global blocks.
- A two-layer, lightweight, energy-aware consensus algorithm (TLC) is employed for global block validation.
- A robust access-control mechanism is integrated to manage data access and privacy.
Main Results
- DHC demonstrates improved time complexity and storage efficiency compared to existing models.
- The model achieves higher retrieval rates for patient healthcare records.
- The TLC consensus protocol effectively mitigates various network attacks, including DDoS, Sybil, Eclipse, and fork attacks.
- Evaluations confirm the model's scalability and dynamic nature in handling healthcare data.
Conclusions
- The DHC model provides an efficient, scalable, and secure solution for blockchain-based healthcare data management.
- The proposed architecture and TLC consensus algorithm enhance data integrity, accessibility, and privacy preservation.
- DHC offers a promising approach for overcoming current limitations in electronic health record systems.
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