Search results for "Arterial tree"

showing 2 items of 2 documents

Ventricular-vascular coupling in hypertension: methodological considerations and clinical implications.

2014

The present review is addressed to analyse the complex interplay between left ventricle and arterial tree in hypertension. The different methodological approaches to the analysis of ventricular vascular coupling in the time and frequency domain are discussed. Moreover, the role of hypertension-related changes of arterial structure and function (stiffness and wave reflection) on arterial load and how ventricular-vascular coupling modulates the process of left ventricular adaptation to hypertension are analysed.The different interplay between vascular bed and left ventricle emerges as the pathophysiological basis for the development of the multiple patterns of ventricular structural adaptatio…

Ventricular-vascular couplingmedicine.medical_specialtyWave reflectionHeart VentriclesLeftDiastoleBlood PressureLeft ventricular hypertrophyPulse wave analysisVentricular Function LeftInput impedanceVascular StiffnessEffective arterial elastanceInternal medicinemedicineVentricular FunctionHumansArterial stiffness; Effective arterial elastance; Hypertension; Input impedance; Left ventricular hypertrophy; Pulse wave analysis; Therapy; Ventricular-vascular coupling; Wave reflection; Aorta; Arteries; Blood Pressure; Elasticity; Heart Ventricles; Humans; Hypertension; Vascular Stiffness; Ventricular Function Left; Cardiology and Cardiovascular Medicine; Medicine (all)AortaArterial structureVentricular functionbusiness.industryMedicine (all)Left ventricular hypertrophyarterial stiffness effective arterial elastance hypertension input impedance left ventricular hypertrophy pulse wave analysis therapy ventricular–vascular coupling wave reflectionGeneral MedicineArteriesmedicine.diseaseArterial stiffnessSettore MED/11 - Malattie Dell'Apparato CardiovascolareArterial treeElasticitymedicine.anatomical_structureVentricleHypertensionCardiologyTherapybusinessCardiology and Cardiovascular MedicineVentricular vascular couplingJournal of cardiovascular medicine (Hagerstown, Md.)
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Requirements on resolution of digital imaging equipment in the cardiac catheterization laboratory.

1988

We evaluated the requirements on spatial resolution of digital imaging equipment in the cardiac catheterization laboratory. Fifty cinefilms of the heart as the biological object and one film of a lead-ladder-pattern as an objective test were used. The patient films were examined for the visibility of the left ventricular angiogram, coronary arterial tree, coronary artery lesions, branching of septal arteries and the number of septal arteries. All films were viewed three times: with a 625 line TV-system, with a 1249 line TV-system and with a cineprojector. It was found that two application areas with different demands on the spatial and temporal resolution can be distinguished: 1) low spatia…

medicine.medical_specialtyCardiac CatheterizationCoronary arterial treebusiness.industrymedicine.medical_treatmentDigital imagingAngiographyCoronary AngiographyRadiographic Image Enhancementmedicine.anatomical_structureApplication areasTemporal resolutionmedicineCineangiographyHumansRadiology Nuclear Medicine and imagingTelevisionRadiologyCardiology and Cardiovascular MedicinebusinessImage resolutionCardiac imagingCardiac catheterizationArteryInternational journal of cardiac imaging
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