|
Liu et al. (2019)
|
With proxy re-encryption, proposing a decentralized data management across hospitals when EHRs are recorded locally in hospital blockchains. |
When storing EHRs on the blockchain system, there is a significant storage overhead. |
| IBM’s Medical-Blockchain |
Store private healthcare data off-chain and manage medical data using blockchain. Uses an unique approach for consensus. |
It has got a complex architecture. Therefore, it should be considered in detail when integrating services. |
|
Al Omar et al. (2019)
|
User-centric EHR systems giving total control of data to users. Permissioned Blockchain and other functions restrict intruders from a security breach. |
When storing EHRs on the blockchain system, there is a significant storage overhead. |
|
Tanwar, Parekh & Evans (2020)
|
Creating a Hyperledger-based access control system to handle EHRs safely. |
Causes high storage overhead; Dependents on MSP. |
|
Niu et al. (2020)
|
Using an ABE to address the multi-user retrieval requirement of an EHR management system. |
The system’s efficiency was only assessed based on the number of attributes and search time. |
|
Veeramakali et al. (2021)
|
Proposing an optimal deep-learning-based secure blockchain healthcare diagnosis model. It examines the model in three different stages in detail. |
When storing EHRs on the blockchain system, there is a significant storage overhead.The blockchain side of the work is less processed than the other parts. |
|
Połap, Srivastava & Yu (2021)
|
Allows separating specific tasks to agents units. Agents combine with federated learning. Performs sharing private data processes with blockchain. |
The blockchain side of the work is less processed than the other parts. There is no analysis of the offer in terms of security. |
|
Chen et al. (2021)
|
Blockchain based system uses various machine learning classification algorithms to provide an earlier detection of the disease and secures the patients’ EHRs. |
There is no performance evaluation of the blockchain for the platform. |
|
Arul et al. (2021)
|
Proposing multi-modal healthcare data dissemination framework using blockchain in IoMT. Data optimization and management were examined in detail. |
Detailed information about how users got into the system was not given. |
