Optimal wavelength selection and narrow bands for the visualization of invisible veins in venipuncture

DOI
  • Kimori Keiko
    Department of Fundamental Nursing, Ishikawa Prefectural Nursing University
  • Yamashita Hiroki
    Nursing Department, Public Central Hospital of Matto Ishikawa
  • Kojima Kikuno
    Nursing Department, Ishikawa Prefectural Central Hospital
  • Nakashima Tomoyo
    Department of Fundamental Nursing, Ishikawa Prefectural Nursing University

Bibliographic Information

Other Title
  • 目視困難な末梢静脈可視化のための最適な近赤外光波長と狭帯域光法

Search this article

Abstract

Detection of veins is a very important technique in the medical practice. Recently, vein visualization using near-infrared (NIR) imaging have been used to detect veins. Different researchers have set different wavelengths for the process. We explored the most suitable near-infrared light wavelengths and the effectiveness of using narrow bands for visualizing invisible peripheral veins for venipuncture. An observational study was performed on the invisible veins of healthy female volunteers in the age range 20-39. We then acquired images of invisible veins using a halogen lamp and hyperspectral camera. We analyzed 4,640 images of 58 invisible veins acquired using light in the range 700-1100 nm; image analysis software was used for the analysis. The optimal wavelength for the visualization of invisible veins according to the contrast ratio between the invisible veins and the surrounding skin tissue was approximately 950-1000 nm; a narrow band of light in that range was effective for the average contrast ratio. We expect that a device based on a narrow band in the wavelength range 950-1000 nm will be useful for the visualization of invisible veins.

Journal

Related Projects

See more

Keywords

Details 詳細情報について

Report a problem

Back to top