Hemodynamic Changes to Acute Stress with Pulsed Doppler Flowmetery in Conscious Rat

Regional blood flow measurement with pulsed Doppler flowmeter in conscious rat.

Development of techniques for the continuous measurement of regional blood flow and vascular resistance in intact small animals has been impeded primarily by the bulkiness of flow probes. The availability of an ultrasonic pulsed Doppler flowmeter system enabled us to construct miniaturized probes using 1-mm-diameter piezoelectric crystals that emit a 20-mHz signal and receive the reflected soun...

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.

Doppler ultrasonography in children with acute pyelonephritis in diagnosis of renal scar compared to DMSA scintigraphy

Background: Urinary tract infection (UTI) is one of the most important pediatric health problems, which is occasionally associated with irreversible renal damage. Dimercapto-succinic acid (DMSA) scan is a diagnostic standard for the renal scar. Doppler ultrasonography (D.S) has been considered as a less invasive method. The purpose of this study was to determine the sensitivity and specificity ...

Hemodynamic Responses and c-Fos Changes Associated with Hypotensive Hemorrhage: Standardizing a Protocol for Severe Hemorrhage in the Conscious Rat

Hemodynamic Changes in Patients with Acute Myocardial Infarction

T HE hemodynamic changes in patients with acute myocardial infarction have been the subject of several investigations. In most seriously ill patients the usual circulatory abnormality is a low cardiac output with peripheral vasoconstriction.1-9 Some cases with a high cardiac output have been reported, however, and recently Malmcrona and Varnauskas'0 have shown a correlation between high cardiac...