Techniques for imaging the choroid and choroidal blood flow in vivo

被引:2
作者
Tan, Bingyao [1 ,2 ,3 ]
Chua, Jacqueline [1 ,2 ,3 ]
Wong, Damon [1 ,2 ,3 ,4 ]
Liu, Xinyu [1 ,2 ,3 ]
Ismail, Munirah [1 ]
Schmetterer, Leopold [1 ,2 ,3 ,4 ,5 ,6 ,7 ,8 ]
机构
[1] Singapore Eye Res Inst, Natl Eye Ctr, Singapore, Singapore
[2] SERI NTU Adv Ocular Engn STANCE Program, Singapore, Singapore
[3] Duke NUS Med Sch, Ophthalmol & Visual Sci Acad Clin Program Eye ACP, Singapore, Singapore
[4] Inst Mol & Clin Ophthalmol, Basel, Switzerland
[5] Nanyang Technol Univ NTU, Sch Chem & Biomed Engn, Singapore, Singapore
[6] Med Univ Vienna, Ctr Med Phys & Biomed Engn, Vienna, Austria
[7] Med Univ Vienna, Dept Clin Pharmacol, Vienna, Austria
[8] Rothschild Fdn Hosp, Paris, France
基金
英国医学研究理事会; 新加坡国家研究基金会;
关键词
Choroidal imaging; Choroidal blood flow; Optical coherence tomography; Optical coherence tomography angiography; OPTICAL COHERENCE TOMOGRAPHY; LASER INTERFEROMETRIC MEASUREMENT; NORMAL-TENSION GLAUCOMA; VASCULARITY INDEX; ISOMETRIC-EXERCISE; PNEUMOTONOMETRIC MEASUREMENT; AUTOMATIC SEGMENTATION; MORPHOMETRIC-ANALYSIS; INTRAOCULAR-PRESSURE; MACULAR DEGENERATION;
D O I
10.1016/j.exer.2024.110045
中图分类号
R77 [眼科学];
学科分类号
100212 ;
摘要
The choroid, which is a highly vascularized layer between the retina and sclera, is essential for supplying oxygen and nutrients to the outer retina. Choroidal vascular dysfunction has been implicated in numerous ocular diseases, including age-related macular degeneration, central serous chorioretinopathy, polypoidal choroidal vasculopathy, and myopia. Traditionally, the in vivo assessment of choroidal blood flow relies on techniques such as laser Doppler flowmetry, laser speckle flowgraphy, pneumotonometry, laser interferometry, and ultrasonic color Doppler imaging. While the aforementioned methods have provided valuable insights into choroidal blood flow regulation, their clinical applications have been limited. Recent advancements in optical coherence tomography and optical coherence tomography angiography have expanded our understanding of the choroid, allowing detailed visualization of the larger choroidal vessels and choriocapillaris, respectively. This review provides an overview of the available techniques that can investigate the choroid and its blood flow in vivo. Future research should combine these techniques to comprehensively image the entire choroidal microcirculation and develop robust methods to quantify choroidal blood flow. The potential findings will provide a better picture of choroidal hemodynamics and its effect on ocular health and disease.
引用
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页数:11
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