منابع مشابه
High Resolution MR of Arterial Vessel Walls
A new high-resolution MR (HR-MR) black-blood imaging technique has been developed that enables examination of intra-cranial arterial vessel walls. HR-MR images can show arterial wall thickening (concentric or asymmetric), atherosclerotic plaque, intramural hemorrhage, and enhancement. HR-MR shows promise for the diagnosis of several cerebrovascular diseases: Atherosclerosis Arteritis Reversible...
متن کاملDisease-associated prion protein in vessel walls.
Human prion diseases like Creutzfeldt-Jakob disease are infectious, inherited, or sporadic neurodegenerative disorders, characterized by the accumulation of an abnormal isoform of the host-encoded prion protein. This affects nervous tissue in sporadic Creutzfeldt-Jakob disease and, additionally, in lymphoid tissue in bovine spongiform encephalopathy-linked variant Creutzfeldt-Jakob disease. Exp...
متن کاملSimulations of diffusive lithium evaporation onto the NSTX vessel walls
A model for simulating the diffusive evaporation of lithium into a helium filled NSTX vacuum vessel is described and validated against an initial set of deposition experiments. The DEGAS 2 based model consists of a three-dimensional representation of the vacuum vessel, the elastic scattering process, and a kinetic description of the evaporated atoms. Additional assumptions are required to accou...
متن کاملThe Presence of Renin Activity in Blood Vessel Walls
The preparation, of an extract of hog blood vessels and organs containing renin activity has been described. The extract hydrolyzes natural or synthetic renin substrate to form a vasopressor material. This reaction could not be distinguished from the hydrolysis of renin substrates by kidney renin. The activation energy, effect of substrate concentration on velocity, inhibition by antirenin, and...
متن کامل3D dynamical ultrasonic model of pulsating vessel walls.
The aim of this work is to introduce a novel 3-D model of pulsating vessels, through which the dynamic acoustic response of arterial regions can be predicted. Blood flow is numerically simulated by considering the fluid-dynamic displacements of the scatterers (erythrocytes), while a mechanical model calculates the wall displacement due to fluid pressure. The acoustic characteristics of each reg...
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ژورنال
عنوان ژورنال: British Journal of Anaesthesia
سال: 1988
ISSN: 0007-0912
DOI: 10.1093/bja/60.3.350