[Purpose] The aim of this study was to investigate the effects of sequential pneumatic compression therapy on venous blood flow, refilling time, pain level, and quality of life in women with varicose veins. [Subjects and Methods] Twenty-eight females with varicose veins were selected and randomly allocated to a control group, and experimental group. Maximum and mean venous blood velocities, the...

A perforating vein can become incompetent due to hemodynamic or morphologic causes. Until recently all perforating veins with a diameter exceeding 3 mm at ultrasound exam were considered incontinent(1). Since introduction of duplex doppler and color doppler investigations this hypothesis was temperated because the dilatation of one or more perforating veins was usually observed in chronic venou...

VENOUS obstruction is known to increase capillary pressure in the obstructed area. Most observers have believed that in the normal subject pressure in the large veins draining a part gives a good indication of the pressure distal to the venous ends of the capillaries and that, if the pressure in large veins is not elevated, changes in the venous system are not important in causing change in the...

1. Portal veins, vena cavae and pulmonary arteries from spontaneously hypertensive (SH) rats were found to undergo medial smooth-muscle hypertrophy when compared with corresponding blood vessels from ageand sex-matched WisterKyoto (WKy) normotensive rats. There was an increase in the density of the mucopolysaccharide and glycoprotein staining in veins, pulmonary arteries vena venorum and ventri...

The investigation was carried out on 16 human foetal cadavers at the age of 17-23 weeks from the time of conception. The foetal vascular system was injected with the synthetic resin MERCOX CL-2R and analysed in scanning electron microscope.The vascular system of the foetal spinal cord was studied. The foetal vascular system was characterised by high variability concerning the number, course and...

A novel noninvasive magnetic resonance imaging (MRI) method was developed to determine in vivo blood oxygen saturation and its changes during motor cortex activation in small cerebral veins. Specifically, based on susceptibility measurements in the resting states, pial veins were found to have a mean oxygen saturation of Yrest=0.544+/-0.029 averaged over 14 vessels in 5 volunteers. During activ...

NAKATA, K., G. F. LEONG AND R. Mr. BRAUER. Direct measurement of blood pressures in minute vessels of the liver. Am. J. Physiol. Igg(6): I 181-1188. 1960.--A method has been described which allows the insertion of microneedles into minute blood vessels of the transilluminated rat liver. Using dye injections under controlled pressures and direct observation, blood pressures in the terminal porta...

BACKGROUND AND PURPOSE Studies have suggested that arachnoid villi or granulations found in the walls of the cranial dural sinuses, olfactory mucosa, and cranial nerve sheaths function as outlets for intracranial CSF. However, their role as CSF outlets has not yet been verified. Here we show that arachnoid protrusions and contiguous diploic veins provide an alternative drainage route for intrac...

<span lang="EN-US">There are some medicines and medical treatments that need to be injected into the human body through blood vessels, this requires placing cannula in patient’s body. The vessels differ from one person another, personnel face major problems finding most cases, because of difference skin color, where it is difficult see veins with black pigment, find people obesity layers ...

Based on a modelling technique to calculate the thermal influence of a single vessel segment, a combination of segments representing a vessel tree is presented. At segment junctions the blood temperature is passed with a correction for a single vessel artefact. Blood leaving the modelled arterial vessel network at a junction or at the end of a terminal branch need not be equilibrated with the l...