Micro-Vibration Patterns Generated from Shape Memory Alloy Actuators and the Detection of an Asymptomatic Tactile Sensation Decrease in Diabetic Patients

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Title
Micro-Vibration Patterns Generated from Shape Memory Alloy Actuators and the Detection of an Asymptomatic Tactile Sensation Decrease in Diabetic Patients
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Description

Abstract

Diabetes mellitus is a group of metabolic diseases that cause high blood sugar due to functional problems with the pancreas or metabolism. Diabetic patients have few subjective symptoms and may experience decreased sensation without being aware of it. The commonly performed tests for sensory disorders are qualitative in nature. The authors pay attention to the decline of the sensitivity of tactile sensations, and develop a non-invasive method to detect the level of tactile sensation using a novel micro-vibration actuator that employs shape-memory alloy wires. Previously, we performed a pilot study that applied the device to 15 diabetic patients and confirmed a significant reduction in the tactile sensation in diabetic patients when compared to healthy subjects. In this study, we focus on the asymptomatic development of decreased sensation associated with diabetes mellitus. The objectives are to examine diabetic patients who are unaware of abnormal or decreased sensation using the quantitative tactile sensation measurement device and to determine whether tactile sensation is decreased in patients compared to healthy controls. The finger method is used to measure the Tactile Sensation Threshold (TST) score of the index and middle fingers using the new device and the following three procedures: TST-1, TST-4, and TST-8. TST scores ranged from 1 to 30 were compared between the two groups. The TST scores were significantly higher for the diabetic patients (P<0.05). The TST scores for the left fingers of diabetic patients and healthy controls were 5.9±6.2 and 2.7±2.9 for TST-1, 15.3±7.0 and 8.7±6.4 for TST-4, and 19.3±7.8 and 12.7±9.1 for TST-8. Our data suggest that the use of the new quantitative tactile sensation measurement device enables the detection of decreased tactile sensation in diabetic patients who are unaware of abnormal or decreased sensation compared to controls.

Author
著者 檀上 淳一
著者(ヨミ) ダンジョウ ジュンイチ
著者(別表記) DANJO Junichi
Publication Title
IEICE Transactions on Information and Systems
Volume
E99.D
Issue
11
Start Page
2759
End Page
2766
Publisher
Institute of Electronics, Information and Communication Engineers
Publisher Aalternative
電子情報通信学会
Published Date
2016-11-01
ISSN
1745-1361
DOI
10.1587/transinf.2015EDP7354
Resource Type
Thesis or Dissertation
Language
eng
Relation
出版社版DOIリンク(URL) : https://doi.org/10.1587/transinf.2015EDP7354
IECE Transactions Online : http://search.ieice.org/
電子情報通信学会 : http://www.ieice.org/jpn/
Rights
Copyright © 2016 The Institute of Electronics, Information and Communication Engineers
Copyright © 2016 IEICE Transactions on Information and Systems
Text Version
ETD
Grant ID
博甲第648号
Grant Date
2016-12-27
Degree Name
博士(医学)
Grantor
香川大学
Set
香川大学
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