Case Report: The application of novel imaging technologies in lower extremity peripheral artery disease: NIR-II imaging, OCTA, and LSFG

医学 光学相干层析成像 斑点图案 近红外光谱 灌注 生物医学工程 放射科 光学 物理
作者
Yijie Ning,Jie Hu,Haifeng Li,Chuanlong Lu,Zeyu Zhang,Sheng Yan,Peilu Shi,Tingting Gao,Heng Wang,Ruijing Zhang,Honglin Dong
出处
期刊:Frontiers in Cardiovascular Medicine [Frontiers Media]
卷期号:11
标识
DOI:10.3389/fcvm.2024.1460708
摘要

Lower extremity peripheral artery disease (PAD) is a growing global health problem. New methods to diagnose PAD have been explored in recent years. At present, the majority of imaging methods for PAD focus on the macrovascular blood flow, and the exploration of microcirculation and tissue perfusion of PAD remains largely insufficient. In this report, we applied three new imaging technologies, i.e., second near-infrared region (NIR-II, 900-1,880 nm wavelengths) imaging, optical coherence tomography angiography (OCTA), and laser speckle flowgraphy (LSFG), in a PAD patient with a healthy human subject as control. Our results showed that the PAD patient had poorer tissue perfusion than the control without observed adverse effects. Moreover, compared with the first near-infrared region (NIR-I, 700-900 nm wavelengths) imaging results, NIR-II imaging had a higher signal-to-background ratio and resolution than NIR-I imaging and detected microvessels that were not detected by NIR-I imaging. These observations suggested that NIR-II imaging, OCTA, and LSFG are potentially safe and effective methods for diagnosing PAD.
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