研究目的
To use an advanced optical coherence tomography (OCT)-based angiography (OCTA) technique for the non-invasive, high resolution imaging of cutaneous wound healing.
研究成果
OCTA provides an opportunity to non-invasively image specific vascular adaptations during human cutaneous wound healing, correlating vascular features with structural traits, which could be used to assess and monitor wound healing for more effective treatment options in the future.
研究不足
The study comprised a single subject, OCT/OCTA was the sole method of analysis used, and the wound analyzed was relatively small in size.
1:Experimental Design and Method Selection:
Used a clinical prototype swept-source OCT (SS-OCT) system with optical microangiography (OMAG) algorithm for non-invasive imaging of vascular and structural changes in human skin during wound healing.
2:Sample Selection and Data Sources:
A single subject volunteer with a cutaneous wound on the right hand caused by molten plastic; informed consent obtained.
3:List of Experimental Equipment and Materials:
In-house-built SS-OCT system with a VCSEL swept laser source (SL1310V1-20048, Thorlabs Inc.), hand-held probe with X-Y galvo scanner, 5X objective lens, disposable glass cover plate, glycerin as refractive index matching medium.
4:Experimental Procedures and Operational Workflow:
Scanning performed at 2, 5, 9, 16, 23, and 44 days post-injury; multiple 3D volume scans taken per session; image segmentation into three depth slabs; quantification of vascular parameters (diameter and density) using masks.
5:Data Analysis Methods:
Statistical analysis using t-tests and ANOVA; proprietary algorithms for image registration and averaging; quantification algorithms for vessel parameters.
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