Daily management of arteriovenous fistula for dialysis patients is crucially important because it sometimes leads to stenosis and obstruction. Numerous shortcomings are associated with management techniques used today. Aside from being invasive, they also require the use of inspection, auscultation, and palpation. Moreover, they rely on the extensive experience of technicians. Actually, definite diagnosis can be made using angiography, but angiography entails difficulties associated with radiation and bulky equipment. To overcome these difficulties posed by current management techniques, we proposed an optical imaging technique. Unfortunately, the related apparatus was too large and heavy for bedside use. This paper therefore explains the possibility of clinical application of our novel technique using compact and light apparatus. Contrast of blood vessel transillumination images is intensified with two wavelengths used for measurements. Results indicate improved accuracy of inner diameter measurements of blood vessels. This study confirmed the possibility of applying this technique in medical settings to achieve continuous management of AV fistula.

中文翻译：

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实现动静脉瘘光学透射成像的可行性研究

透析患者的动静脉瘘的日常管理至关重要，因为它有时会导致狭窄和阻塞。许多缺点与当今使用的管理技术有关。除了具有侵入性之外，它们还需要使用检查，听诊和触诊。此外，他们依靠技术人员的丰富经验。实际上，可以使用血管造影术进行明确的诊断，但是血管造影术会带来与放射线和笨重的设备相关的困难。为了克服当前管理技术带来的这些困难，我们提出了一种光学成像技术。不幸的是，相关设备太大而笨重，无法在床边使用。因此，本文解释了使用紧凑轻巧的设备将我们的新技术临床应用的可能性。用用于测量的两个波长来增强血管透照图像的对比度。结果表明提高了血管内径测量的准确性。这项研究证实了在医学环境中应用该技术以实现房室瘘持续治疗的可能性。