Measurement of blood flow and the effects of different factors on tissue blood flow are important fields of research in physiology and pharmacology. So far, different methods have been innovated, using laser light is the Last one. In this article history, principles and specifications of laser technique along with its advantages and disadvantages ( in comparison with other methods) are revie...

Many techniques have been devised to measure the haemodynamics of the human and animal eye. In this perspective these are outlined and their use in ophthalmic investigation summarised. Some have exploited the ability of an observer to directly visualise the retinal vasculature by optical means, others have been designed to study the haemodynamics ofthe invisible parts of the eye such as the cho...

background & objective: reduced blood flow due to obstruction in most cases is as a primary factor in pressure ulcer formation and create of bedsore. the aim of this study is design and manufacture a care system tissue under pressure based on variation blood flow at different depths in the tissue. material & methods: in manufacture of system two infrared light transmitter were located between o...

This paper represents a review of the recent literature on techniques to measure myocardial blood flow in man. A short discussion on flow meters in followed by a more detailed discussion of the radionuclide techniques used to measure myocardial blood flow. The radionuclide techniques are discussed in two groups: (1) qualitative measurement of blood flow using static images; and (2) quantitative...

A"CLOSED" method for the accurate measurement of myocardial blood flow is still to be achieved. In 1956, Henly et al. described an indicator-dilution technique for assessing myocardial blood flow. This approach led us to construct a suitable model for simulating a systemic-coronary circuit. Observations with this system suggested that an indicator-dilution technique might be applicable to measu...