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Showing 1 to 20 of 21 for “"Inferior vena cava"”.
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Simulation of the human inferior vena cava for evaluating IVC interruption devices
Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1980.
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Vascular Supply to the Vasa Vasorum of the Inferior Vena Cava in Dogs
No abstract prepared.
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Ultrasound measurements on the inferior vena cava by renal nursing staff for assessment and management of intravascular volume status in haemodialysis patients
Title: Ultrasound measurements on the inferior vena cava (IVC-US) by renal nursing staff for assessment and management of intravascular volume status in haemodialysis patients. Aims: The primary aim of this thesis was to provide evidence that renal nurses could safely and efficiently perform IVC-US …
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Maternal Vascular Compliance of Placentas in Rabbits
… Adjustable ties were placed around the maternal inferior vena cava and aorta so that pressures could be altered. A fetus with its placenta was snared at four different pressures, the order being randomized: one at normal, one with the aorta fully occluded, one with the aorta partially occluded, …
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DESIGN & DEVELOPMENT OF HETEROTOPIC TRANSCATHETER TRICUSPID VALVES TO AMELIORATE TRICUSPID REGURGITATION
… zone. Thus, the next best anchorage zone is the vena cava. Placing the valves in the superior and inferior vena cava will prevent the back flow of blood into the venous structures and minimises the detrimental effect of reverse flow. The hemodynamic characteristics of these valves were tested in …
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Design of Percutaneous Dual Propeller Pump to assist Patients with Single Functional Ventricle
… connection (TCPC), formed by suturing the inferior vena cava (IVC) and superior vena cava (SVC) to the pulmonary arteries (PAs), results in non-physiological flow conditions, systemic venous hypertension, reduced cardiac output, and pressure losses, which ultimately calls for a heart …
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Splenic and portal venography
… the left renal vein, or the portal vein to the inferior vena cava. In the same year Whipple (1945) classified portal hypertension into cases with an obstruction in the portal system outside the liver, and those with a block inside the liver, the result of hepatic fibrosis. The cases with …
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Closed-Loop CFD Analysis of the Fontan Cardiovascular Circulation
… newborn patients. In this procedure the superior vena cava and inferior vena cava, which carry the oxygen-poor blood from the upper and lower body back to the heart, are linked directly to the pulmonary arteries, bypassing the atrial connection. Even though this operation has been around for …
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Multi-Scale Fluid Flow Analysis of the Cardiovascular System
… palliate HLHS patients. In this operation, the inferior vena cava (IVC) and the superior vena cava (SVC), carrying the low-oxygenated blood returning from the lower and upper body back to the heart, are connected to the pulmonary arteries. Despite the fact that the Fontan operation has been …
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Feasibility of Using Virtual Unenhanced Images to Replace Pre-Contrast Images In Multiphase Renal Ct Examinations
… Hierarchical model. VUE images were found to be inferior to TUE images for visualization of major vessels and depiction of liver parenchyma. CT numbers were measured in the liver, spleen, spine, aorta, cystic lesions, subcutaneous fat, renal cortex and medulla, and the differences were tested …
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Aspiration Thrombectomy as the Sole Treatment for Acute and Sub-acute Deep Venous Thrombosis (DVT) of the Lower Extremity: mid and long-term clinical results
… catheters, after insertion of a temporary inferior vena cava (IVC) filter. The inclusion criteria were patients with acute or sub-acute iliofemoral or femoropopliteal DVT of less than 4 weeks duration, with or without IVC extension. If post procedure venography demonstrated persistent …
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The Effect of Preload Reduction on Parameters to Evaluate Left Ventricular Diastolic Function
… velocity(E’) at septal, lateral, anterior, and inferior corners of the mitral annulus by Doppler tissue imaging(DTI) and Vp by color M-mode were also measured. The Time intervals between peak of R wave and onset of mitral E velocity and between peak R wave and onset of E' at the four corners of …
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The Budd-Chiari syndrome : a study of diagnosis, haemodynamics and treatment
… arising either locally or by extension from the inferior vena cava. It is usually called the Budd-Chiari syndrome. The etiology remains unknown in over two-thirds of the patients. Its rarity and interest has led to a large number of individual case reports. 322 instances of symptomatic hepatic …
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Engineering Materials for Non-Compressible Torso Hemorrhage and Internal Bleeding
… relative to the saline control in a lethal inferior vena cava (IVC) injury model (84.6% vs 26.7%), as well as the greatest accumulation at the injured IVC relative to uninjured vessel controls. Subsequently, the intermediate nanoparticles from the prior study were functionalized with …
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Anomalías congénitas de la vena cava inferior
Las anomalías congénitas de la vena cava inferior son raras, poco estudiadas y habitualmente desconocidas. Estudio descriptivo de las anomalías congénitas de la vena cava inferior detectadas en 42125 pacientes durante 59,5 meses (desde Septiembre de 2019 hasta Agosto de 2024) en nuestro …
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Relato de caso: manejo anestésico de nefrectomia com trombectomia cavoatrial sob circulação extracorpórea
… in the renal vein and extension into the inferior vena cava (IVC), observed in 4–10% of patients. Cases in which the thrombus extends to the right atrium (RA) are rarer, occurring in approximately 1% of patients, and require a complex surgical approach and invasive anesthetic support. Case …
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Hemodynamic Optimization of a Passive Assist Total Cavopulmonary Connector for ages 1-20
… procedure, which connects the superior and inferior vena cava directly to the left and right pulmonary arteries bypassing the right atrium. However, this is not the most efficient configuration from a hemodynamics perspective. The goal of this study is to develop a patient-specific 4-way …
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Vergleichende In-vitro-Testung von Kavafiltern
… reached the best results. With larger emboli the Vena Tech LP filter and the OptEase filter obtained equally good capture rates. The Anthéor filter, the Recovery filter and the Titanium Greenfield filter achieved substandard test-results.
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Concordancia del diámetro de la vena cava inferior medida desde dos ventanas ecográficas distintas
… ACEP propone la medición de los diámetros de la vena cava inferior tanto en la ventana acústica sub xifoidea o línea medio axilar derecha y con estos se calcule el índice de colapso, que permite un estimativo de la presión venosa central. Aceptando la vena cava como un cilindro, se ha dado por …
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