压力性损伤愈合中高光谱成像的评估。

Assessment of Hyperspectral Imaging in Pressure Injury Healing.

机构信息

At Hungkuang University, Taichung, Taiwan, Lin-Lin Lee, PhD, RN, is Assistant Professor, Department of Nursing and Shu-Ling Chen, PhD, RN, is Professor, College of Nursing. Acknowledgment: The authors thank the 30 patients who participated in this research.The authors have disclosed no financial relationships related to this article. Submitted November 15, 2021; accepted in revised form January 22, 2022.

出版信息

Adv Skin Wound Care. 2022 Aug 1;35(8):429-434. doi: 10.1097/01.ASW.0000831888.39420.a6. Epub 2022 Jul 7.

DOI:10.1097/01.ASW.0000831888.39420.a6

PMID:35819937

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9329042/

Abstract

OBJECTIVE

To analyze the blood oxygen concentrations (StO 2 ) of different stages of pressure injury (PI) tissue using hyperspectral images to serve as a guideline for the treatment and care of PIs.

METHODS

This study used a prospective design. A total of 30 patients with sacral PIs were recruited from the rehabilitation ward of a teaching hospital. The authors used a hyperspectral detector to collect wound images and the Beer-Lambert law to estimate changes in tissue StO 2 in different stages of PI.

RESULTS

The tissue StO 2 of healthy skin and that of stage 1 PI skin were similar, whereas the tissue StO 2 of the wound in stage 2 PIs was significantly higher than that of healthy skin and scabbed tissue (medians, 82.5%, 74.4%, and 68.3%; P < .05). In stage 3 PIs, StO 2 was highest in subcutaneous tissue and adipose tissue (82.5%) and lowest in peripheral scabs (68.35%). The tissue StO 2 was highest in subcutaneous tissue in stage 4 PIs, and this tissue was red in the hyperspectral spectrum. The scab-covered area of unstageable PIs had the lowest StO 2 of all PI tissue types (median, 44.3%).

CONCLUSIONS

Hyperspectral imaging provides physiologic information on wound microcirculation, which can enable better evaluation of healing status. Assessing tissue StO 2 data can provide a clinical index of wound healing.

摘要

目的

利用高光谱图像分析不同阶段压疮（PI）组织的血氧浓度（StO2），为 PI 的治疗和护理提供指导。

方法

本研究采用前瞻性设计。共招募 30 名来自教学医院康复病房的骶部 PI 患者。作者使用高光谱探测器采集伤口图像，并采用 Beer-Lambert 定律估计不同阶段 PI 组织中 StO2 的变化。

结果

健康皮肤和 1 期 PI 皮肤的组织 StO2 相似，而 2 期 PI 伤口的组织 StO2 明显高于健康皮肤和结痂组织（中位数分别为 82.5%、74.4%和 68.3%；P<0.05）。在 3 期 PI 中，StO2 在皮下组织和脂肪组织中最高（82.5%），在周围结痂组织中最低（68.35%）。在 4 期 PI 中，StO2 在皮下组织中最高，该组织在高光谱谱中呈红色。无法分期的 PI 的结痂覆盖区域的 StO2 是所有 PI 组织类型中最低的（中位数，44.3%）。