Related Experiment Video
Updated: Mar 28, 2026
Dried Blood Spots - Preparing and Processing for Use in Immunoassays and in Molecular Techniques
Published on: March 13, 2015
Personal Authentication Analysis Using Finger-Vein Patterns in Patients with Connective Tissue Diseases--Possible
Miyuki Kono1, Naoto Miura1, Takao Fujii2
1Central Research Laboratory, Hitachi Ltd., Kokubunji-shi, Tokyo, Japan.
Insights
Finger-vein authentication is viable for connective tissue disease patients, though seasonal variations, especially in winter, may affect accuracy in advanced systemic sclerosis (SSc).
Area of Science:
- Biometrics
- Medical Imaging
- Rheumatology
Background:
- Connective tissue diseases (CTDs) can impact physiological characteristics.
- Finger-vein patterns are a unique biometric identifier.
- Understanding CTD effects on biometrics is crucial for reliable authentication.
Purpose of the Study:
- To investigate the influence of connective tissue diseases on finger-vein pattern stability.
- To assess the suitability of finger-vein authentication for CTD patients throughout the year.
Main Methods:
- Acquired finger-vein patterns from 68 CTD patients and 24 healthy controls over one year.
- Used CCD imaging with near-infrared light for pattern capture.
- Evaluated pattern similarity using normalized cross-correlation (C).
Main Results:
- Mean C values were generally lower in CTD patients compared to controls.
- A statistically significant reduction in C values was observed in midwinter for CTD patients.
- Patients with systemic sclerosis (SSc) and mixed connective tissue disease (MCTD) showed the most pronounced seasonal reductions.
Conclusions:
- Finger-vein patterns remain a viable authentication method for CTD patients.
- Seasonal variations, particularly in winter, necessitate careful consideration for advanced CTD cases like SSc.
- Further research may refine authentication protocols for specific CTD subtypes.
Objective:
To examine how connective tissue diseases affect finger-vein pattern authentication.
Methods:
The finger-vein patterns of 68 patients with connective tissue diseases and 24 healthy volunteers were acquired. Captured as CCD (charge-coupled device) images by transmitting near-infrared light through fingers, they were followed up in once in each season for one year. The similarity of the follow-up patterns and the initial one was evaluated in terms of their normalized cross-correlation C.
Results:
The mean C values calculated for patients tended to be lower than those calculated for healthy volunteers. In midwinter (February in Japan) they showed statistically significant reduction both as compared with patients in other seasons and as compared with season-matched healthy controls, whereas the values calculated for healthy controls showed no significant seasonal changes. Values calculated for patients with systemic sclerosis (SSc) or mixed connective tissue disease (MCTD) showed major reductions in November and, especially, February. Patients with rheumatoid arthritis (RA) and patients with dermatomyositis or polymyositis (DM/PM) did not show statistically significant seasonal changes in C values.
Conclusions:
Finger-vein patterns can be used throughout the year to identify patients with connective tissue diseases, but some attention is needed for patients with advanced disease such as SSc.
Related Concept Videos
01:17Veins of Upper Limbs
The deep venous system is primarily composed of the ulnar and radial veins. The ulnar vein, which drains the fingers through the superficial palmar venous arches, and the radial vein, which serves the palms via the deep palmar...
01:27Assessment of the Cardiovascular System III: Palpation
Jugular Venous Pressure (JVP) Measurement
Position the patient at a thirty- to forty-five-degree angle or in a semi-fowler's position. Look for the highest point of pulsation in the internal jugular vein and measure the vertical distance to the angle of Loius or sternal angle. A normal JVP is 3-4 cm above...
01:21Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation
01:15Veins of Lower Limbs
Formed by the union of the medial and lateral plantar veins, the posterior tibial vein, rising through the calf muscle, assimilates the fibular vein. The anterior tibial vein, a superior extension of the foot's dorsalis pedis vein, merges with the posterior tibial vein at the...
01:30Peripheral Artery Disease I: Introduction
01:11Assessment of radial pulse
The radial pulse, located at the wrist, is often the preferred site for assessing peripheral pulse because of its accessibility and dependability. The process of determining the radial pulse involves several steps: