A Simple and Low-cost Approach to Blood Flow Monitoring Using Speckle Contrast Technique

被引：0

作者：

Ma, Haiyan ^{[1
]}

Wijshoff, Ralph ^{[2
]}

Mader, Sebastian ^{[1
]}

Veen, Jeroen ^{[3
]}

Van der Mark, Martin ^{[3
]}

Bhattacharya, Nandini ^{[1
]}

Urbach, Paul ^{[1
]}

机构：

[1] Delft Univ Technol, Lorentzweg 1, NL-2628 CJ Delft, Netherlands

[2] Eindhoven Univ Technol, NL-5612 AZ Eindhoven, Netherlands

[3] Philips Res Eindhoven, NL-5656 AE Eindhoven, Netherlands

来源：

9TH INTERNATIONAL CONFERENCE ON VIBRATION MEASUREMENTS BY LASER AND NONCONTACT TECHNIQUES AND SHORT COURSE | 2010年 / 1253卷

关键词：

Laser Speckle Contrast Imaging; Heartbeat Detection; Speckle Velocimetry and Signal to Noise Ratio;

D O I：

暂无

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A laser speckle contrast imaging (LSI) setup has been designed and used to estimate heartbeat rate and microvascular perfusion non-invasively. LSI measurements were performed on the human index finger and thumb during various finger perfusion conditions, such as before and after gently rubbing of a finger or the healing of a small inflammation of the eponychium on the finger. Heartbeat was retrieved with 0.5 to 10ms exposure time using LASCA (Laser Speckle Contrast Analysis) and dLASCA (dynamic Laser Speckle Contrast Analysis) processing methods. Additionally, a noise analysis model for laser speckle contrast imaging was established to evaluate Signal to Noise Ratio (SNR) in speckle imaging and provide a guideline for camera selection and imaging system design.

引用

页码：50 / +

页数：2

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