Venous flow velocity, venous volume and arterial blood flow.
نویسندگان
چکیده
منابع مشابه
Venous flow velocity, venous volume and arterial blood flow.
The relationship of arterial blood flow and venous volume to venous flow velocity was studied in normal subjects. The effects of current modes of treatment in venous thrombosis and of a vasodilator drug on venous flow velocity were also investigated. Total calf flow and venous volume were measured by venous occlusion plethysmography while venous flow axial velocity was determined by the transit...
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SUMMARY Time-resolved, 3D velocity-encoded MR imaging (4D Flow) allows for the acquisition of dynamic, multidirectional data on blood flow and has recently been used for the evaluation of intracranial arterial flow. Using a 3T system with optimization of both temporal resolution and k-space subsampling with a combination of parallel imaging and cut-corner acquisition, we present the clinical as...
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Introduction: The acquisition of arterial and venous blood flow to the cranium as well as flow of cerebrospinal fluid (CSF) in the spinal canal are the main input parameters for modeling cerebrospinal dynamics [1]. Phase-Contrast (PC) MRI has been used to measure input and output boundary conditions to populate model parameters. There are, however, limitations as to the accuracy of PC-MRI when ...
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OBJECTIVE To estimate the umbilical artery and vein blood volume flow using B-mode and Doppler ultrasound in the second and third trimesters of pregnancy. DESIGN This was a cross-sectional study of 129 singleton, healthy pregnancies at 23-33 weeks' gestation. The umbilical artery and vein cross-sectional area, time-averaged velocity and pulsatility index were measured in a free loop of cord, ...
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BACKGROUND AND PURPOSE Predictors of clinical outcome in aneurysmal subarachnoid hemorrhage (SAH) vary in reliability. Measurement of cerebral venous hemodynamics by transcranial color-coded duplexsonography (TCCS) has become of increasing interest lately, and correlation with intracranial pressure (ICP) seems to be high. The aim of the presented study was to assess changes of cerebral venous h...
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ژورنال
عنوان ژورنال: Circulation
سال: 1975
ISSN: 0009-7322,1524-4539
DOI: 10.1161/01.cir.52.1.141