A portable multispectral vein imaging system

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Ozkan H., Aydin M., Ozcan O. A., Zengin Ü.

Journal of Electrical Engineering, vol.74, no.1, pp.64-69, 2023 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 74 Issue: 1
  • Publication Date: 2023
  • Doi Number: 10.2478/jee-2023-0008
  • Journal Name: Journal of Electrical Engineering
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Communication Abstracts, INSPEC, PAIS International, zbMATH
  • Page Numbers: pp.64-69
  • Keywords: multispectral vein imaging, phlebotomy NIR (near infrared) imaging, vein imaging, venipuncture
  • Yıldız Technical University Affiliated: No


Phlebotomy may cause unnecessary injuries to a patient whose veins are not easily visible to a healthcare professional. To mitigate this problem we designed a new system to image subcutaneous veins. Multispectral images were obtained using a microprocessor, an IR (infrared) camera, different wavelengths of NIR (near-infrared) sources, and an IR band-pass filter. Raw vein images were enhanced, colored, and displayed on a monitor using an easy-to-use interface. The mean dice similarity index (DSI) between the vein border specified by a doctor on the raw images manually and the automated segmented by the proposed system is determined as 0.92 ± 2.1 for 20 subjects. Also, the average peak signal-to-noise ratio (PSNR) obtained a high value of 68.37 ± 1.56 from the enhanced image. Phlebotomists can easily observe the subcutaneous veins in real-time with the three different options using the proposed device. As a result, this study advances the vein imaging field which has the potential to reduce injury to the patient during venipuncture.