Mean Transit Time
Dating of streamwater using tritium in a post nuclear bomb pulse world: continuous variation of mean transit time with streamflow
... the mean transit time of the water varies with the flow rate of the ...stream. Mean transit times through the catchment are 2–5 years dur- ing high baseflow conditions in winter, ...
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CT Perfusion Derived Mean Transit Time Predicts Early Mortality and Delayed Vasospasm after Experimental Subarachnoid Hemorrhage
... MATERIALS AND METHODS: SAH was induced in 25 New Zealand white rabbits. Cerebral blood flow (CBF), cerebral blood volume (CBV), and mean transit time (MTT) were measured with CT perfusion before SAH, ...
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Runoff generating processes in adjacent tussock grassland and pine plantation catchments as indicated by mean transit time estimation using tritium
... The mean transit time of the young water is ap- proximately one month, while that of the old water is 25– 26 years as revealed by the presence of tritium originating from the bomb-peak in NZ rainfall ...
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Insights into the water mean transit time in a high elevation tropical ecosystem
... the mean transit time (MTT) of water and its spatial variability in a tropical high-elevation ecosystem (wet Andean ...five transit time distribution (TTD) functions was used to ...
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Fibrinolytic treatment of acute stroke: are we treating reversible cerebral ischemia?
... including mean transit time and regional cerebral blood volume maps (Figs 1 and ...prolonged mean transit time and marked decrease in relative regional cerebral blood volume tend ...
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Indicator dilution measurements of extravascular water in the lungs
... the mean transit time differences between labeled water and red cells, and the pulmonary water flow was used to estimate extravascular parenchymatous water; and this was expressed as a proportion of ...
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How clinical imaging can assess cancer biology
... MTT: Mean transit time; MVD: Microvessel density; NAA: N-acetyl-aspartate; NETs: Neuroendocrine tumors; PCa: Prostate cancer; PET: Positron emission tomography; PI3k: PI3 kinase; PI-RADS v2: Prostate ...
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RETRACTED ARTICLE: Clinical application of contrast enhanced ultrasound to diagnose benign prostatic hyperplasia
... performed. Time-intensity curves were obtained for all tests in regions of ...arrival time (AT), peak intensity (P), time to peak (TP), area under the curve (AUC), mean transit ...
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Perfusion-CT monitoring of cryo-ablated renal cells tumors
... years; mean age, 62 years) with cryoablated RCC via a transperitoneal approach, underwent to pCT 6-8 months after cryo- ...BV; Mean Transit Time, MTT; Permeability-Surface Area Product, PS) ...
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Dynamic Computed Tomography of the Brain: Techniques, Data Analysis, and Applications
... The concept of corrected mean transit time applied to rapid sequence scans after intravenous bolus injection of contrast material provides quantitative data on relative hemispheric flow.[r] ...
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Reevaluation of transit time distributions, mean transit times and their relation to catchment topography
... The transit time of water is a fundamental property of catchments, revealing information about the flow path- ways, source of water and storage in a single integrated mea- ...and transit times, few ...
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A STUDY OF THE PULMONARY BLOOD VOLUME IN MAN BY QUANTITATIVE RADIOCARDIOGRAPHY
... The pulmonary mean transit time is estimated as the interval from the mean time of ejection of label from the right ventricle to the peak time of counting rate resulting from label in th[r] ...
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Performance of a possible Grid Messaging Infrastructure
... We have created a video conference on the server machine – 1.2GHz Intel Pentium III dual CPU, 1GB MEM, RedHat Linux 7.3. One of the participants sends a H.263 video stream to the server, which delivers it to all the ...
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Transit times and electrical discharge in a steady state gas activation system
... This study deals with the problem of transporting a gas from the core of the Ames Laboratory Research Reactor to the ion source of an electromagnetic isotope separator in a steady-state fashion. The parameters on which ...
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Arterial Spin Labeling in Routine Clinical Practice, Part 1: Technique and Artifacts
... Circulating gadolinium-based contrast agents significantly shorten T1 in all tissues in both the control and label condi- tions. The effect of this T1 shortening is to minimize the mea- surable differences between the ...
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Integrated response and transit time distributions of watersheds by combining hydrograph separation and long term transit time modeling
... travel time distributions as- sociated with time-varying rainfall, runoff and evapotranspi- ration processes, proposing a transport model that considers catchments as nonlinear systems with ...
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Quantifying new water fractions and transit time distributions using ensemble hydrograph separation: theory and benchmark tests
... of time-varying new water fractions determined from age tracking in the benchmark ...tracer time series, and a random set of measurement errors and missing values (see ...River time series) in each ...
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Transit Capacity and Quality of Service Manual Applied to a Bus Corridor in Dublin, Ireland
... all transit services with fixed-route public transport ser- vices undertake a performance assessment using the TCQSM pro- ...public transit in the ...
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Conclusions: Blood viscosity was not significantly associated with intraoperative graft flow. Blood flow
... anesthesia time; surgery time; size of the graft vessel; intraoperative total fluid volume including transfusions; and hemodynamic parameters, including heart rate, mean arterial blood pressure, ...
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Gastric transit and small intestinal transit time and motility assessed by a magnet tracking system
... Antroduodenal and small intestinal manometry is used clinically in the evaluation of patients with suspected severe dysmotility such as chronic intestinal pseudoob- struction [5,37]. It was anticipated that MTS-1 could ...
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