# Blockchain-Based Internet of Medical Things
## 3 Analysis
### Selection Results
\begin{table}
\begin{tabular}{l r} \hline
**Journal** & **Number of Publications** \\ \hline _IEEE Journal of Biomedical and Health Informatics_ & 1 \\ _IEEE Sensors Journal_ & 1 \\ _IEEE Transactions on Consumer Electronics_ & 1 \\ _IEEE Transactions on Engineering Management_ & 1 \\ _Information Switzerland_ & 1 \\ _Journal of Information Security and Applications_ & 1 \\ _Journal of Network and Computer Applications_ & 1 \\ _Journal of Sensor and Actuator Networks_ & 1 \\ _Journal of Supercomputing_ & 1 \\ _Mathematical Biosciences and Engineering_ & 1 \\ _Microprocessors And Microsystems_ & 1 \\ _Multimedia Tools and Applications_ & 1 \\ _Perasive and Mobile Computing_ & 1 \\ _Soft Computing_ & 1 \\ _Technological Forecasting and Social Change_ & 1 \\ _Technology and Health Care_ & 1 \\ \hline \end{tabular}
\end{table} 
Table 1: \(Cont.\)  
Figure 2: The number of publications published annually between 2017 and 2022. RQ2: How important are blockchain applications in the IoMT? IoMT has significant benefits for human health, including improved quality of life and reduced healthcare costs [13]. The healthcare industry stands to save as much as USD 300 billion annually if it adopts IoMT devices, notably for telemedicine and chronic diseases. Investing in the IoMT is lucrative since it brought in USD 28 billion in 2017 and is projected to bring in USD 135 billion by 2025 [21]. Key elements, as shown in Figure 4, are wireless sensors that may be used to perform remote monitoring of patient's health states and communication technologies to relay that data to healthcare providers. Figure 4: Conceptual design for the IoMT. Figure 3: Main keywords of articles. Because of its sensitivity, volume, and importance, medical data requires rigorous guarding [22]. Furthermore, blockchain technology is paving the way for innovative approaches to healthcare data management, access control, sharing, retrieval, storage, and more [23]. Now that blockchain technology is introduced, researchers are more focused on employing blockchain strategies to ensure the security of applications in healthcare [24]. IoMT problems emerged as soon as IoT systems started incorporating medical devices. The lack of consistency is a major barrier. The extensive application of blockchain technology in healthcare is expected to bring along a rise to new \"smart\" healthcare provider applications that sidestep the latest medical research and create individualized pathways to address the situations [25]. The same level of access to information will be provided for both the patient and the healthcare professionals allowing them to engage in a productive dialogue based on hard facts about the best course of therapy for the patient's illness [26; 27]. Several recent studies have focused on the potential of blockchain technology in the healthcare sector [28; 29; 30; 31; 32]. Blockchain technology has made a significant impact on the healthcare sector in terms of transforming digitally in recent years. Blockchain applications for healthcare data management facilitate the regulation of patient record access, the handling of payments and claims, the protection of IoMT [33], and the verification and exchange of research results for financial audits [34] and transparency. To handle, analyze, and make sense of patient health data, the main features of blockchain, including encrypted and distributed ledgers that are updated in real time, are employed [35]. Conceptually, there are layers to access technologies that are new in the blockchain-based healthcare area including healthcare applications, stakeholders, data sources, and blockchain technology [36]. [PERSON] et al. [37] employed Hyperledger fabric blockchain technology to transport medical data to the Hyperledger blockchain network, with a particular emphasis on medical records. Telephones were used to collect medical records. The goal of their work was to use the blockchain to record medical records.