Validation of a continuous penile blood-flow measurement by pulse-volume-plethysmography
نویسندگان
چکیده
منابع مشابه
Measurement of Flow and Volume of Blood
One of the primary measurements the physician would like to acquire from a patient is that of the concentration of O2 and other nutrients in the cells. Such quantities are normally so difficult to measure that the doctor is forced to accept the second-class measurements of blood flow and changes in blood volume, which usually correlate with concentration of nutrients. If blood flow is difficult...
متن کاملContinuous measurement of tissue blood flow by laser-Doppler spectroscopy.
Laser light scattered from tissue in vivo is broadened in line width as a result of the Doppler shift produced by moving red cells in the microcirculation. A feasibility study was carried out to demonstrate use of this effect to measure and monitor tissue blood flow. Light from a helium-neon laser illuminated a 1-mm area of tissue (human skin or rat renal cortex), and the backscattered light wa...
متن کاملAssessment of cerebral blood flow by means of blood-flow-volume measurement.
of Blood-Flow-Volume Measurement To the Editor: With great interest we read in Stroke that a working group around Soustiel1 compared cerebral blood flow (CBF) as measured by xenon clearance technique with blood-flow-volume (BFV) measurements from the internal carotid artery (ICA). Soustiel et al found well-correlated data, ie, correlation coefficients 0.75, in a total of 77 measurements. As a c...
متن کاملTissue blood flow measurement by laser Doppler technique
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...
متن کاملDynamic CT measurement of cerebral blood flow: a validation study.
BACKGROUND AND PURPOSE Our objective was to develop a method to correct for the effect of partial volume averaging (PVA) in the CT measurement of contrast enhancement in small arteries, and to validate a dynamic contrast-enhanced CT method for the measurement of regional cerebral blood flow (rCBF). METHODS Contrast-enhanced CT scans of tubes of known inner diameters were obtained to estimate ...
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ژورنال
عنوان ژورنال: International Journal of Impotence Research
سال: 2002
ISSN: 0955-9930,1476-5489
DOI: 10.1038/sj.ijir.3900840