Frontiers in European Radiology - Couverture souple

Couverture souple

ISBN 10 : 3642725651 ISBN 13 : 9783642725654

Editeur : Springer, 2011

Synopsis

Considerable advances have been made over the years in the study of the physiological and diseased states of the kidney, so that our present-day diagnostic capabilities permit not only morphological, but also functional inter-relations to be registeres. The first step toward function diagnostics was taken with the introduction of kymography. This was followd by serial angiography, and then came cineradiography which made simultaneous morphological and functional radiological examinations feasible. 2 Physiology of Kidney 2. 1 Hemodynamics of Renal Arteries Because of the negligible vascular elasticity of the rani arteries, the diameter variation resulting within one cardiac action is about 1 % [14]; but with these variations being lost in the accuracy of measurement, however, blood flow can be compared to the flow of liquid in rigid tubes. In a rigid tube, the velocity of the individual particles of liquid varies in relation to its distance from the tube axis. Under normal circumstances, a laminar flow prevails in the arteries, the blood flowing parallel to the vascular wall in coaxial cylindrical layers. The velocity is referred to here as v. The flow rate, I, stands for the ratio of the volume of liquid, V, flowing through a cross section of a tube to the time, t, required for this, or also for the product of flow velocity v and the cross section of the tube q: 1= Llv: Llt and I = v x q.

A propos du livre

Présentation de l'éditeur

Contents Abdominal and Thoracic Magnetic Resonance Angiography: Challenges, Technical Approaches and First Clinical Applications. H.U. Kauczor, R. Hausmann, W. Semmler Magnetic Resonance Spectroscopy of Skeletal Muscle. F. Tr{ber, W.A. Kaiser, G. Layer,C. Kuhl, M. Reiser Hepatic Tumors: Relaxometry and Quantitative Tissue Characterization with Magnetic Resonance Imaging. A. Steudel, F. Tr{ber, M. Reiser Liver-Specific Particulate Contrast Agents: An Overview I. Ivancev, A. Lunderquist Contrast Medium Induced Nephropathy:Animal Experiments H.S. Thomsen et al. Rheological Properties of Blood after Diagnostic Cardiac Catheterisation with Iopromide. R. Bach et al. Color Coded Doppler Sonography of the Male Urethra During Voiding: New Observations of Flow in an Aqueous Medium and Their Physical Foundations. P. H}bsch, F. Hager, E. Benes Development of a Model of Arterial Stenosis Analysis Using Digital Subtraction Angiography: A Parametric Study of Image Quality. C. Renaudin, I. Magnin, A. Amiel Arterial Calcifications in Thoracoabdominal Computer Tomography: Frequency and Correlation with Risk Factors and Cardiovascular Diseases. J. G|rich et al.

Détails de l'édition

• Éditeur: Springer
• Date d'édition: 2011
• Langue: anglais
• ISBN 10: 3642725651
• ISBN 13: 9783642725654
• Reliure: Broché
• Nombre de pages: 184
• Coordonnées du fabricant: non disponible
• Personne responsable: CMN Printpool Inh. Mathis Neumann; https://www.also.com/ec/cms5/en_6000/6000/index.jsp; ; Friedrich-Karl-Str. 9; Hamburg; Allemagne