Essays about: "AIF"

Found 4 essays containing the word AIF.

  1. 1. Quantification of cerebral blood flow with 15O-water PET : A comparison study between PET/CT and PET/MR and two different blood sampling instruments

    University essay from Umeå universitet/Institutionen för fysik; Umeå universitet/Diagnostisk radiologi

    Author : Amanda Eriksson; [2021]
    Keywords : Cerebral Blood Flow; CBF; oxygen-15-labelled water; PET CT; PET MR; Quantification of CBF; Image Derived Input Function; IDIF; Blood Sampled Input Function; BSIF; Arterial Input Function; AIF; Tracer Kinetic Modelling; Single Tissue Compartmental Model; 1TCM;

    Abstract : Cerebral blood flow quantification is a vital diagnostic tool for disease monitoring and used for diagnosing a variation of pathological conditions. The human brain requires roughly about 20 % of the total cardiac output to sustain normal functioning, hence the perfusion of blood is an important factor to deliver oxygenated blood. READ MORE

  3. 2. Debt Funds : Alternative Financing on the Swedish Real Estate Market

    University essay from KTH/Bank och finans

    Author : Victor Holmen; Linus Svensson; [2019]
    Keywords : Debt funds; Real Estate; Alternative financing options; Swedish Real Estate Market; Skuldfonder; Fastigheter; Alternativa Finansieringslösningar; Svenska Fastighetsmarknaden;

    Abstract : Banks have become increasingly restrictive in their lending towards real estate, a development that is expected to continue due to further regulations, such as the Basel framework, and the emergence of new alternative financing options. As described by interview respondents, companies have shown an increased preference for a mix of capital sources following the financial crisis of 2008, which has led to an increase in demand on the capital and alternative markets. READ MORE

  4. 3. Validation and Robustness Analysis of Dynamic Contrast Enhanced MRI

    University essay from Umeå universitet/Institutionen för fysik

    Author : Samuel Fransson; [2015]
    Keywords : MRI; DCE-MRI; Dynamic Contrast Enhanced MRI; Validation; Simulation;

    Abstract : In Dynamic Contrast Enhanced MRI there are several steps from the initial signal to obtaining the pharmacokinetic parameters for tumor characterization. The aim of this work was to validate the steps in the flow of data focusing on T1-mapping, Contrast Agent (CA)-quantification and the pharmacokinetical (PK) model, using a digital phantom of a head. READ MORE

  5. 4. Feasibility Study of Phase Measurements of the Arterial Input Function in Dynamic Contrast Enhanced MRI

    University essay from Radiofysik

    Author : Sandra Marklund; [2009]
    Keywords : AIF; Arterial Input Function; DCE-MRI; Dynamic Contrast Enhanced MRI; MRI; Gd; Gadolinium; Phase measurement; Phase;

    Abstract :   Acquired data from dynamic contrast enhanced MRI measurements can be used to non-invasively assess tumour vascular characteristics through pharmacokinetic modelling. The modelling requires an arterial input function which is the concentration of contrast agent in the blood reaching the volume of interest as a function of time. READ MORE