Lipid droplet detection in histopathological images using reinforcement learning

Harada, Yoshitomi; Nishida, Haruto; Matsuura, Keiko

doi:10.1080/13102818.2024.2338433

Cited by 1 publication

(2 citation statements)

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“…There was an absence of inflammatory reactions, and minimal fibroblastic transformation of keratocytes was observed in the area adjacent to the segments. The nature of the deposits has been previously investigated [ 9 , 10 , 11 , 12 , 13 ]; in this research, we described our cases in which the ICRS was manually inserted.…”

Section: Discussionmentioning

confidence: 99%

“…In this study, the extracted corneas were fully processed for complete standard histopathological analysis, which, as mentioned above, resulted in the lipid melting. Recognition of lipid accumulation in formalin fixed paraffin imbedded specimens is a challenge, and new techniques are recently being developed to support pathologist in the recognition of lipids [ 13 ]. One example is a study by Harada et al, which proposed a new method for detection lipid droplets in pathological images using reinforcement learning.…”

Section: Discussionmentioning

confidence: 99%

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Ex Vivo Histological Analysis of Corneas with Manually Implanted Intracorneal Stromal Ring Segments

Kapelushnik,

Werner,

Levinger

et al. 2024

JCM

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Backgrond: Intracorneal ring segments (ICRSs) are utilized to correct refractive changes impacting visual acuity, commonly implanted via femtosecond laser but can also inserted manually. Corneal deposits alongside the ICRS channels are seen commonly. Methods: This study explores the histological characteristics of corneal deposits following manual ICRS implantation, comparing them to previously published articles describing femtosecond laser-assisted cases. Results: This is a retrospective analysis of three cases involving manual ICRS implantation, accumulation of whitish deposits and later explanation of the corneas due to penetrating keratoplasty (PKP). Patient demographics, ocular history, and surgical details were collected. Histological analysis employed Hematoxylin and Eosin (H&E) and Masson’s trichrome staining. Whitish deposits along ICRS tracts were observed in all cases, with minimal fibroblastic transformation of keratocytes adjacent to the segments. Comparing these cases of manual to femtosecond laser-assisted ICRS implantation, in most cases, similar deposits were identified, indicating the deposits’ association with the stromal tissue reaction to the ring segment and not to the surgical technique. Conclusions: This study contributes insights into the histopathology of manually implanted ICRS, emphasizing the shared nature of deposits in both insertion methods. The findings highlight the link between deposits and the stromal tissue reaction to the ring segment, irrespective of the insertion technique.

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