Blood Flow Disturbance - Explore the Science & Experts | ideXlab

Scan Science and Technology

Contact Leading Edge Experts & Companies

Blood Flow Disturbance

The Experts below are selected from a list of 117 Experts worldwide ranked by ideXlab platform

Gaëlle Lissorgues – 1st expert on this subject based on the ideXlab platform

  • Non-invasive measurement of Blood Flow using magnetic Disturbance method
    2009 International Conference on Biomedical and Pharmaceutical Engineering, 2009
    Co-Authors: Chee Teck Phua, Gaëlle Lissorgues

    Abstract:

    Current laser Doppler method of Blood Flow sensing requires optical contact to the skin, tend to be bulky and have performance subjective to body fluids (e.g. Blood, perspiration) and environmental contaminants (e.g. mud, water). This paper proposes a novel method of noninvasive acquisition of Blood Flow by measuring the magnetic Disturbance created due to Blood Flowing through a localized magnetic field. The proposed system employs a GMR based magnetic sensor and magnet of 3 mm radius, placed on a major Blood vessel. The magnetic field generated by the magnet acts both as the biasing field for the sensor and also the uniform magnetic flux for Blood Flow Disturbance. As such, the system is compact, operates at room temperature and is able to sense through clothing. The signal acquired from the magnetic and optical methods are compared using the post-occlusive reactive hyperaemia test, where measurement results on 6 different healthy subjects are found to have error of less than 5%, showing the successful use of the magnetic method to measure Blood Flow.

Chee Teck Phua – 2nd expert on this subject based on the ideXlab platform

  • Non-invasive measurement of Blood Flow using magnetic Disturbance method
    2009 International Conference on Biomedical and Pharmaceutical Engineering, 2009
    Co-Authors: Chee Teck Phua, Gaëlle Lissorgues

    Abstract:

    Current laser Doppler method of Blood Flow sensing requires optical contact to the skin, tend to be bulky and have performance subjective to body fluids (e.g. Blood, perspiration) and environmental contaminants (e.g. mud, water). This paper proposes a novel method of noninvasive acquisition of Blood Flow by measuring the magnetic Disturbance created due to Blood Flowing through a localized magnetic field. The proposed system employs a GMR based magnetic sensor and magnet of 3 mm radius, placed on a major Blood vessel. The magnetic field generated by the magnet acts both as the biasing field for the sensor and also the uniform magnetic flux for Blood Flow Disturbance. As such, the system is compact, operates at room temperature and is able to sense through clothing. The signal acquired from the magnetic and optical methods are compared using the post-occlusive reactive hyperaemia test, where measurement results on 6 different healthy subjects are found to have error of less than 5%, showing the successful use of the magnetic method to measure Blood Flow.

Kazutaka Misaka – 3rd expert on this subject based on the ideXlab platform

  • effects of bacillus subtilis var natto products on symptoms caused by Blood Flow Disturbance in female patients with lifestyle diseases
    International Journal of General Medicine, 2015
    Co-Authors: Masahito Hitosugi, Katsuo Hamada, Kazutaka Misaka

    Abstract:

    The fermented soybean product natto is a popular traditional food in Japan and is considered a health supplement. NKCP®, a natto-derived dietary food supplement whose main component is bacillopeptidase F, has antithrombotic, fibrinolytic, and Blood pressure-lowering effects. We examined whether daily intake of NKCP® effectively improves subjective symptoms in patients with lifestyle diseases in this cross-over, double-blind study. Fermented soya extract with subtilisin NAT (nattokinase) as the main component was used as an active placebo. A 4-week course of NKCP® significantly decreased the visual analog scale (VAS) score for shoulder stiffness from 42.3 to 32.4 (P=0.009), the VAS score for low back pain from 25.5 to 18.8 (P=0.02), and the VAS score for coldness of the extremities from 33.1 to 25.7 (P=0.002). However, no significant difference was found in the VAS score for headache. After a 4-week course of active placebo, no significant changes in the VAS score were found for any symptoms. The significant improvement in the symptoms secondary to Blood Flow Disturbance was caused by the improvement in Blood Flow by NKCP®. The use of dietary supplements based on the Japanese traditional food natto helps to relieve subjective symptoms for patients with lifestyle diseases receiving medical care.