Schéma du microcathéter Rayflow CARDIO_H_51indd 1030 CNCH CARDIO H N°51 21 Dysfonction microcirculatoire ETUDE DE LA FONCTION MICROCIRCULATOIRE PAR THERMODILUTION CONTINUE DANS UN MINOCA La température va donc diminuer jusqu'à atteindre un état stable qui démontre l'homo généité du mélange sang/sérum physiologique AThe RayFlow™ catheter also allows to inject saline or medication in the vasculature The coronary angiogram detects only 5% of the total coronary tree The RayFlow™ catheter explores the remaining 95% RV RayFlow_Mise en page 1 1548 Page 1 140cm 250 mm (RX) Ø 084 mm (252F) 0014'' (036mm) Ø 067 mm (1F) The Rayflow ™ catheter measures the Over this wire a dedicated coronary infusion catheter (RayFlow HexaCath, Paris, France) was advanced to position the lateral infusion holes in the first 2 centimeters of the coronary artery A second, 0014‐inchcoronary wire (Runthrough, Terumo, Tokyo, Japan) was placed in the contralateral vessel to stabilize the guiding outside of the left coronary artery The epicardial
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Rayflow catheter
Rayflow catheter-Exact position of the Rayflow catheter was taken into account to determine the amount of myocardial mass (figure 1) Because even in normal coronary arteries, the presence of the infusion catheter may influence the measured blood flow (creating a small gradient), the flow in the absence of a stenosis is determined by the Coroventis software (Qnorm) by dividing the actuallyThe main difference between FFR evaluation using the RayFlow catheter and dedicated pressure microcatheters to measure FFR is that the RayFlow catheter has
Catheter Based Measurements Of Absolute Coronary Blood Flow And Microvascular Resistance Circulation Cardiovascular Interventions
Recovery of absolute coronary flow and resistance one week after percutaneous coronary intervention of a chronic totally occluded coronary artery using the novel RayFlow© infusion catheter EuroIntervention 18;14e5e5 published online November 17 published online eedition August 18 In FFRnegative patients, after removal of the Wirecath®, the Abbott PressureWire® is used in LAD – first to measure CFR by saline bolus injections and thermodilution during rest and hyperemia (Bolusthermo CFR) and – second together with a Hexacath/Rayflow® infusion catheter and a saline infusion pump to measure absolute flow during rest and hyperemia that will be usedThe Rayflow catheter is shown in the upper panel, clearly indicating the 4 infusion holes at 0°, 90°, 180°, and 270° The middle panel shows the infusion pump The lower panel shows the pressure wire with the necessary software Like with every invasive imaging modality, there are some practical issues to keep in mind when using this technique First, the Rayflow catheter is
CARACTÉRISTIQUES DU RAYFLOW La coronarographie continue réalisée avec le cathéter RayFlow™ permet une évaluation quantitative directe de la fonction microvasculaire en mesurant le débit coronarien et les résistances microvasculaires Utilisée en combinaison avec un fil de température/pression, cette nouvelle technologie permet d'explorer de nouveaux horizons en3 User Guide RayFlow Client 60 RayFlow Client 60 60 Table of Contents Introduction 4 Over this wire, a RayFlow ® catheter is advanced in the proximal part of the artery, and saline at room temperature is infused at a rate of 15 to mL/min through the 4 lateral side holes of the catheter This infusion induces steadystate hyperemia after approximately 15 seconds The temperature of the distal part of the artery decreases and reaches a steady state approximately after 25 seconds Then, the sensor is pulled back in RayFlow
Introduction Absolute coronary blood flow and resistance can be measured by thermodilution with a dedicated catheter (RayFlow, HexaCath, Paris, France) Purpose The infusion of saline (15–25 mL/min) through the RayFlow Catheter induces maximal hyperaemia We aimed to explore the mechanisms of this hyperemic response Methods In 19 domestic swines, instrumented withSeoul, Korea, april 25th, 17 Nico H J Pijls, MD, PhD Catharina Hospital, Eindhoven, The Netherlands TCT Asia Pacific 17 FFR, iFR, Contrast FFR, CFR, IMR, etcRayFlow ist eine Workflow ManagementLösung, die nicht nur alle wichtigen Informationen eines Auftrages in jeder Phase beliebig komplexer Prozesse bedarfsgerecht sammelt und bereitstellt, sondern auch als Bindeglied zwischen Teams und deren eingesetzten Softwareprodukten fungiert RayFlow steuert und überwacht den Workflow für den gesamten Application Lifecycle, vom
Accurate Assessment Of Coronary Blood Flow By Continuous Thermodilution Technique Validation In A Swine Model Adjedj Catheterization And Cardiovascular Interventions Wiley Online Library
Coronary Microvascular Dysfunction Assessed By Continuous Intracoronary Thermodilution A Comparative Study With Index Of Microvascular Resistance International Journal Of Cardiology
Presently, the technique is easy to perform using the Rayflow infusion catheter and the Coroventis software The method is accurate, reproducible, and completely operatorindependent This method has been validated noninvasively against the current golden standard for flow assessment Positron Emission TomographyComputed Tomography (PETCT) In addition, absolute flow and Over this wire a dedicated coronary infusion catheter (RayFlow HexaCath, Paris, France) was advanced to position the lateral infusion holes in the first 2 centimeters of the coronary artery A second, 0014‐inchcoronary wire (Runthrough, Terumo, Tokyo, Japan) was placed in the contralateral vessel to stabilize the guiding outside of the left coronary artery The epicardial Technologies to improve ACS patients clinical outcomes TiNOX coated bioactive stents and RayFlow catheters – From EuroPCR 18 Consult this session to discover some new technologies to improve ACS patients clinical outcomes, and to reflect on the most appropriate treatment among DES and bio active stents in these patients
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Recovery of absolute coronary flow and resistance one week after percutaneous coronary intervention of a chronic totally occluded coronary artery using the novel RayFlow© infusion catheter EuroIntervention Soundcloud therealmartinho Demonstration from catharina hospital eindhoven with prof nico pijls using pressurewire, rayflow catheter and coroventis software to measure absolute coronar This video shows the difference between static, relative and absolute positioning and how they affect the normal flow of a document Yoga for complete beginners! Europe PMC is an archive of life sciences journal literature
In Vitro Test Retest Repeatability Of Invasive Physiological Indices To Assess Coronary Flow Picard 19 Catheterization And Cardiovascular Interventions Wiley Online Library
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RayFlow is a software management workflow tool that helps to control and monitor the complicated IT processes in an enterprise This guide shows how to can setup RayFlow web server in your environment Not only is RayFlow straightforward and easy to use it is highly customizable To know more about, how RayFlow can help you monitor and control your enterprise IT process,Following, a dedicated monorail infusion catheter (Rayflow; Absolute coronary blood flow and resistance can be measured by thermodilution with a dedicated catheter (RayFlow, HexaCath, Paris, France)
Accurate Assessment Of Coronary Blood Flow By Continuous Thermodilution Technique Validation In A Swine Model Adjedj Catheterization And Cardiovascular Interventions Wiley Online Library
In Vitro Test Retest Repeatability Of Invasive Physiological Indices To Assess Coronary Flow Picard 19 Catheterization And Cardiovascular Interventions Wiley Online Library
exact position of the Rayflow catheter was taken into account to determine the amount of myocardial mass (figure 1) Because even in normal coronary arteries, the presence of the infusion catheter may influence the measured blood flow (creating a small gradient), the flow in the absence of a stenosis is determined by the Coroventis software (Qnorm) by dividing theMeasurement of absolute coronary blood flow (ABF) and microvascular resistance, assessed by coronary thermodilution using a dedicated infusion catheteThe Rayflow microcatheter is threaded over this guide catheter and advanced into the proximal segment of the artery (green arrow) After connecting the proximal microcatheter tip to an infusion pump, a roomtemperature saline solution is infused into the coronary artery at a preset flow rate
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Third, the Rayflow monorail infusion catheter has been approved for use in Europe, but is currently under review for FDA approval Conclusions Continuous thermodilution is easily implemented and safe in patients with INOCA Absolute resistance is higher in patients with microvascular dysfunction (high IMR/low CFR) Absolute flow and resistance do not correlate Europe PMC is an archive of life sciences journal literatureLatest product on the market The RayFlow catheter for measuring Absolute flow and Microvascular resistance Activity According to WHO, "the world's biggest killer is ischaemic heart disease, responsible for 16% of the world's total deaths" and "coronary heart According to WHO, "the world's biggest killer is ischaemic heart disease, responsible for 16% of the world's total
Thermodilution Based Invasive Assessment Of Absolute Coronary Blood Flow And Microvascular Resistance Quantification Of Microvascular Dys Function
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Request PDF Accurate assessment of coronary blood flow by continuous thermodilution technique Validation in a swine model Objective To assess the accuracy of coronary thermodilutionRAYFLOW AND CORONARY FLOW The Rayflow™ catheter measures the coronary flow and microvascular resistance in a reproducible way Start the thermodilution procedure as an FFR measurement Flush the RayFlow™ catheter with saline at room temperature The RayFlow™ rapid exchange catheter can be advanced in the proximal part of the artery Make sure the console isThe Rayflow is visible by a radiopaque dot at the tip In this position, the measurement starts The right panel shows the position of the pressure wire when it is pulled back towards the inner side holes of the Rayflow catheter Now the infusion temperature is assessed
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Abbott, Saint Paul, MN, USA);The catheter and could cause loss of indicator through the monorail lumen The hub is standard sized, and compatible with any automated pump injector used for the continuous injection of saline at room temperature The infusion catheter (RayFlow ®) recently obtained CE approval and is manufactured by Hexacath Inc, Paris, France Validation testsRayFlow catheter to measure hyperemic absolute flow (4,5) Under this steady state hyperemia, the balloon catheter was slowly inflated to obtain a graded, controlled stenosis Figure 1A shows the simultaneously recorded aortic and distal coronary pressures and thermodilutionderived proximal LAD flow (Q S) during steady state maximal hyperemia Figure 1B shows the
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Accurate Assessment Of Coronary Blood Flow By Continuous Thermodilution Technique Validation In A Swine Model Adjedj Catheterization And Cardiovascular Interventions Wiley Online Library
RAYFLOWMERKMALE Die mit dem RayFlow™Katheter durchgeführte koronare Kontinuität ermöglicht eine direkte quantitative Beurteilung der mikrovaskulären Funktion durch Messung des koronaren Flusses und der mikrovaskulären WiderständeInstallation Guide RayFlow Server 60 RayFlow 60 Overview RayFlow is a software management workflow tool that helps to control and monitor the complicated IT processes in an enterprise This guide shows how to can setup RayFlow web server in your environment Not only is RayFlow straightforward and easy to use it is highly customizable To First, the Rayflow catheter is compatible with a 6F guiding and 6F introducer sheath Next, the heating element of the infusion pump should be switched off Next, it is to make sure there is enough saline in the infusion pump to complete the whole measurement For one measurement, generally 50 cc of saline is needed Further it is important to wait long enough till
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Assessment of Coronary Pressure Using the Combined Guidewire and Catheter Wirecath Sponsors Lead Sponsor Vastra Gotaland Region Collaborator Cavis Technologies AB Source Vastra Gotaland Region Brief Summary In summary, the purpose of the study is to evaluate whether the Wirecath device can be used as a standard pressure wire in a safe and efficient way DetailedFind your diagnostic catheter easily amongst the 180 products from the leading brands (Edwards, Biosense Webster, Cordis, ) on MedicalExpo, the medical equipment specialist for your professional purchases Page 2Guiding catheters were advanced into the coronary arteries and after intracoronary administration of 0 µg nitroglycerin and proper equalisation of pressures, FFR was measured in all three major coronary arteries using a pressure/temperature wire (PressureWire X;
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RayFlow ® multifunctional infusion catheter • Monorail infusion catheter with double lumen (Hexacath, Paris) • Inner lumen to measure the infusion temperature • T i is the infusion temperature of the saline at the infusion holes of the Rayflow catheter and T is the distal coronary temperature measured by the pressure wire, both expressed as the difference to body temperature Q i is the infusion rate of the pump in ml/min Simplified this means that when T is 1°C below body temperature and T i is 5°C below body temperature, the The presence of the RayFlow catheter induced a decline in hyperemic Pd/Pa (FFR) from 090 (087–096) to 087 (084–094) Although statistically significant, the absolute decline is small and reflects the effect of the RayFlow catheter in the first millimeters of the epicardial artery
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PDF Introduction Absolute coronary blood flow and resistance can be measured by thermodilution with a dedicated catheter (RayFlow, HexaCath, Paris, Find, read and cite all the research youRAYFLOW UND KORONARER FLUSS Der Rayflow™Katheter misst den Koronarfluss und den mikrovaskulären Widerstand auf reproduzierbare Weise Starten Sie das Thermodilutionsverfahren als FFRMessung Spülen Sie den RayFlow™Katheter mit Kochsalzlösung bei Raumtemperatur Der RayFlow™Schnellwechselkatheter kann in den proximalen Teil der Arterie vorgeschoben second together with a Hexacath/Rayflow® infusion catheter and a saline infusion pump to measure absolute flow during rest and hyperemia that will be used to calculate CFR (Absoluteflow CFR) EchocardiographyCFR group (group 3) Patients from group 1 and group 2 that have undergone Bolusthermo and Absoluteflow CFR measurements, will be recruited to
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Hexacath, Paris) was advanced overRay Flow calle 579 likes wwwfacebookcom/rayflowface To assess the accuracy of coronary thermodilution measurements made with the RayFlow® infusion catheter Background Measurements of absolute coronary blood flow (ABF) and absolute microvascular resistance (R μ ) by continuous coronary thermodilution can be obtained in humans but their accuracy using a novel dedicated infusion catheter has not yet been validated
Accurate Assessment Of Coronary Blood Flow By Continuous Thermodilution Technique Validation In A Swine Model Adjedj Catheterization And Cardiovascular Interventions Wiley Online Library
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Catheter for continuous saline infusion •4 side holes allowing optimal mixing of saline •Minimal or no saline dripping through the distal port ETP April 2426, 14 iobe TIME Temperature Q = Q i x x 108 T b T i T b T Q = Q i x x 108 T i T 0 T b T T i Start infusion ( mL/min) Continuous Infusion ACF ETP April 2426, 14 rnoudse W et al J Am Coll Cardiol 07; iobe
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