Non-contact blood flow determination using a laser speckle method
β Scribed by B. Ruth
- Publisher
- Elsevier Science
- Year
- 1988
- Tongue
- English
- Weight
- 917 KB
- Volume
- 20
- Category
- Article
- ISSN
- 0030-3992
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## Abstract The laser speckle method is a new form of flowmetry that can obtain a twoβdimensional distribution of blood flow in tissue. This method is a noncontact, simple, and rapid technique that may aid in the diagnosis of osteonecrosis. We investigated whether the subchondral bone blood flow wi
The laser speckle method allows the noncontact determination of skin blood flow and its dynamics from a distance of 5 cm. The method is based on the time dependency of the speckle pattern formed by the scattered light of a 5 mW He-Ne laser (632.8 nm). Utilizing the speckle intensity measured through
The laser speckle method is a new form of tissue flowmetry that can analyze the interference pattern that appears when tissue is illuminated with a laser beam. During surgery for 100 cases of osteonecrosis of the femoral head, we measured the blood flow within the subchondral bone using this method.