Photoplethysmography (PPG) is a noninvasive optical technique for detecting microvascular
blood volume changes in tissues. Its ease of use, low cost and convenience make it an …

When laser light illuminates a diffuse object, it produces a random interference effect known
as a speckle pattern. If there is movement in the object, the speckles fluctuate in intensity …

First introduced in the 1980s, laser speckle contrast imaging is a powerful tool for full-field
imaging of blood flow. Recently laser speckle contrast imaging has gained increased …

The healing process in acute wounds has been extensively studied and the knowledge
derived from these studies has often been extrapolated to the care of chronic wounds, on the …

Animal studies and preliminary results in humans suggest that lower extremity and
myocardial ischemia can be attenuated by treatment with angiogenic cytokines. The resident …

When a diffuse object is illuminated with coherent laser light, the backscattered light will form
an interference pattern on the detector. This pattern of bright and dark areas is called a …

Laser Doppler velocimetry uses the frequency shift produced by the Doppler effect to
measure velocity. It can be used to monitor blood flow or other tissue movement in the body …

Continuous monitoring of variations in blood flow is vital in assessing the status of
microvascular and macrovascular beds for a wide range of clinical and research scenarios …

Neovascularization of ischemic muscle may be sufficient to preserve tissue integrity and/or
function and may thus be considered to be therapeutic. The regulatory role of vascular …

The etiology of Alzheimer's disease (AD) remains unclear. The emerging view is that
cerebrovascular dysfunction is a feature not only of cerebrovascular diseases, such as …