Trends in perivascular macrophages research from 1997 to 2021: A bibliometric analysis

Figures

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  FIGURE 1. Annual number of publications and annual number of total citations in perivascular macrophages from 1997 to 2021 in Web of Science.

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  FIGURE 2. Citespace category co‐occurrence analysis network in perivascular macrophages from 1997 to 2021. Each node represents one category and the size of the node reflects its frequency. The category labels are exhibited beside the node. Centrality is counted and shown as “purple circle” that connect several articles and play a pivot role in the network. The “red circle” means the category was or is still a hot spot.

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  FIGURE 3. Citespace keyword co‐occurrence analysis network in perivascular macrophages from 1997 to 2021. Each node represents one keyword. The frequently used keywords are exhibited beside the node.

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  FIGURE 4. Citespace top 25 keywords burst detection in perivascular macrophages from 1997 to 2021, together with their strength and duration. The strength value reflected the frequency of citation. The green blocks represented the year 1997–2021. The red blocks represented the begin, the end, and the duration of citation bursts.

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  FIGURE 5. Citespace institution co‐occurrence analysis network in perivascular macrophages from 1997 to 2021. Each node represents one institution and the size of the node reflects its frequency. The institution labels are exhibited beside the node. Centrality is counted and shown as “purple circle” that connect several articles and play a pivot role in the network. The “red circle” means the institution was or is still a hot spot.

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  FIGURE 6. Citespace Reference co‐citation analysis network (Cluster View) in perivascular macrophages from 1997 to 2021. The network has a modularity of 0.8446 and an average silhouette score of 0.9382. The labels of each cluster are exhibited beside the blocks. The color of the clusters shows when the co‐citation links happened. The red color means the citing year is relatively early, and the yellow color indicates that the citation time is relatively recent.

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  FIGURE 7. Citespace Reference co‐citation analysis network (Timeline View) in perivascular macrophages from 1997 to 2021. Each node represents one reference. Clusters are listed in descending order according to their size. Cluster labels are exhibited on the right part. The color of the clusters shows when the co‐citation links happened. The red color means the citing year is relatively early, and the yellow color indicates that the citation time is relatively recent. The size of the node represents its frequency, “purple circle” and “red circle” represents its centrality and degree of heat respectively.

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  FIGURE 8. Citespace partial zoom of Cluster #0 (A), #1 (B), #2 (C), #3 (D), #5 (E) and #6 (F) reference co‐citation analysis network (Timeline View) in perivascular macrophages from 1997 to 2021. The label of the most cited reference is placed at the lowest position. The color of the clusters shows when the co‐citation links happened. The red color means the citing year is relatively early, and the yellow color indicates that the citation time is relatively recent. The size of the node represents its frequency, “purple circle” and “red circle” represents its centrality and degree of heat respectively.