Comparison of laser doppler flowmeter and radioactive microspheres in measuring blood flow in pig skin flaps
نویسندگان
چکیده
منابع مشابه
comparison of blood flow velocity changes in posterior cerebral artery measured with transcranial doppler sonography in migraineurs with visual aura and normal persons after photostimulation
چکیده ندارد.
15 صفحه اولInability of a Confocal Scanning Laser Doppler Flowmeter to Measure Choroidal Blood Flow in the Pig Eye
The aim of the study was to determine whether the Heidelberg Retinal Flowmeter (HRF), a confocal scanning laser Doppler flowmeter, can measure choroidal blood flow in pig eyes.An HRF was used to obtain flow maps from in vitro pig eyes under a range of perfusion flow rates (0 - 500 microL/min) under conditions in which only the choroid was perfused. In some cases choroidal blood flow was also me...
متن کاملScanning laser Doppler flowmeter study of retinal blood flow in macular area of healthy volunteers.
AIM To compare the interocular and intraocular differences of capillary perfusion, and the intraocular regional differences of retinal blood flow in the macular area of healthy volunteers. METHODS Tissue blood flow in the macula was examined in both eyes of 20 healthy volunteers with the Heidelberg retinal flowmeter. Blood flow measurements were made in a 10 degrees x 2.5 degrees area superio...
متن کاملEvaluation of a laser Doppler flowmeter to assess blood flow in human primary incisor teeth.
PURPOSE This study determined whether the portable Advance Laser Flowmeter Model 21, a clinical instrument, would indicate significant values when pulpal blood flow was present or absent; whether the analog output of the flowmeter was time-linked to the heart rate; and whether labial and lingual crown surfaces produced different flow values. METHODS Teeth were tested under two conditions: wit...
متن کاملSound-induced artifact in cochlear blood flow measurements using the laser Doppler flowmeter.
The laser Doppler flowmeter has been shown to give a response from the cochlea during high intensity acoustic stimulation which is not related to blood flow through the cochlea. The magnitude of this response depends upon the intensity and frequency of stimulation and the location of the probe on the cochlea. Evidence is presented that the response is derived from the vibration of cochlear tiss...
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ژورنال
عنوان ژورنال: The Laryngoscope
سال: 1995
ISSN: 0023-852X,1531-4995
DOI: 10.1288/00005537-199504000-00009