Cerebral blood flow (CBF) during stepped hypercapnia was measured simultaneously in the rat brain using near-infrared diffuse correlation spectroscopy (DCS) and arterial spin labeling MRI (ASL). DCS and ASL CBF values agree very well, with high correlation (R=0.86, p< 10(-9)), even when physiological instability perturbed the vascular response. A partial volume effect was evident in the smaller...

Kalantarinia K, Belcik JT, Patrie JT, Wei K. Real-time measurement of renal blood flow in healthy subjects using contrast-enhanced ultrasound. Am J Physiol Renal Physiol 297: F1129–F1134, 2009. First published July 22, 2009; doi:10.1152/ajprenal.00172.2009.—Current methods for measuring renal blood flow (RBF) are time consuming and not widely available. Contrast-enhanced ultrasound (CEU) is a s...

Background: The virtual rise of blood pressure resulted from stress, that is observed in subjects that are tested in medical centers, can be oftenly corrected by holter. This phenomenon causes such persons not to response to the common anti blood pressure treatments (2). Materials and methods: This descriptive study was conducted 2006-2007 at the heart clinic of Shohadaye–Ashayer hospital in Kh...

Among hemodialysis patients, the assessment of dry weight remains a matter of clinical judgment because tests to assess dry weight have not been validated. The objective of this study was to evaluate and validate relative plasma volume (RPV) monitoring as a marker of dry weight. We performed RPV monitoring using the Crit-Line monitor at baseline and at 8 weeks in 150 patients participating in t...

PURPOSE To determine the possibility of avoiding homologous blood transfusion during total hip arthroplasty, and to clarify the problems associated with autologous blood transfusion. METHODS A total of 253 patients received autologous blood transfusion during total hip arthroplasty between April 1990 and December 2000. Patients were assessed for the volume of haemorrhage during surgery, possi...

Hematological profiles of cyclists fluctuates are based on the volume/frequency/intensity of training. The present study examined the effects of training load on the cyclist’s biochemical profile which may be associated with over training. Twelve male cyclists volunteered to participate in this study. The participants completed a systematic training program which was divided into four phases i....

THE ESTIMATION OF PLASMA VOLUME has become a very useful and widely applied tool in the diagnosis and treatment of clinical aberrations of water and electrolyte distribution. Methods utilizing the dilution of radioactive iodinated serum albumin (BISA), have been studied and applied extensively, and most of the strictly methodologic difficulties have been overcome. One step, however, that of inj...

The real-time monitoring and evaluation of the severity and progression of cerebral hemorrhage is essential to its intensive care and its successful emergency treatment. Based on magnetic induction phase shift technology combined with a PCI data acquisition system and LabVIEW software, this study established a real-time monitoring system for cerebral hemorrhage. To test and evaluate the perform...

Under physiological conditions and on average, the total volume of blood in the circulation is constant. The total blood volume (BV) and the separate volumes of plasma and erythrocytes vary according to climatic conditions, in pregnancy and in the presence of disease. Such changes can have clinical significance although they are rarely revealed in common clinical practice because of a lack of a...