title: [Radiation absorption (CT) and proton relaxation times (MR) of the blood. Quantification of the effect of cell, protein, mineral and water content on total absorption].
abstract: The exact knowledge of the physical properties of the blood is of great help in image interpretation. Accumulations of liquid with different components of protein and cells must be differentiated from neoplastic tissues. The blood with its composition will influence from the imaging point of view all other blood supplied tissues. The CT number (radiation absorption) of the entire tissue is the sum of the radiation absorption of its single components. To demonstrate this we used human blood as a "tissue model". The proton-relaxation times (T1 and T2) were measured in their dependence on the red cell concentration.
mesh_terms: D001769:Blood; D001772:Blood Cell Count; D001798:Blood Proteins; D001834:Body Water; D006801:Humans; D066298:In Vitro Techniques; D009682:Magnetic Resonance Spectroscopy; D008903:Minerals; D014057:Tomography, X-Ray Computed
chemical_list: D001798:Blood Proteins; D008903:Minerals
vernacular_title: Strahlenabsorption (CT) und Protonenrelaxationszeiten (MR) des Blutes.Quantifizierung des Einflusses von Zell-, Eiweiss-, Mineral- und Wassergehalt auf die Gesamtabsorption.