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  2. Fractional flow reserve - Wikipedia

    en.wikipedia.org/wiki/Fractional_flow_reserve

    Fractional flow reserve is defined as the pressure after (distal to) a stenosis relative to the pressure before the stenosis. [2] The result is an absolute number; an FFR of 0.80 means that a given stenosis causes a 20% drop in blood pressure. In other words, FFR expresses the maximal flow down a vessel in the presence of a stenosis compared to ...

  3. Coronary flow reserve - Wikipedia

    en.wikipedia.org/wiki/Coronary_flow_reserve

    Coronary flow reserve is used in diagnostics and treatment of patients with conditions such as coronary artery disease and syndrome X. [7] In the treatment of these conditions, vasodilators are used to allow sufficient blood to flow past a stenosis, for example, and the measurement of CFR enables the efficacy of such interventions to be measured.

  4. FFR - Wikipedia

    en.wikipedia.org/wiki/FFR

    Fractional flow reserve, a technique used in coronary catheterization; Frequency following response; Military. Falster Foot Regiment, a Royal Danish Army infantry ...

  5. Instantaneous wave-free ratio - Wikipedia

    en.wikipedia.org/wiki/Instantaneous_wave-free_ratio

    The instantaneous wave-free ratio (iFR, sometimes referred to as the instant wave-free ratio or instant flow reserve) is a diagnostic tool used to assess whether a stenosis is causing a limitation of blood flow in coronary arteries with subsequent ischemia. iFR is performed during cardiac catheterisation (angiography) using invasive coronary pressure wires which are placed in the coronary ...

  6. Ejection fraction - Wikipedia

    en.wikipedia.org/wiki/Ejection_fraction

    Modalities applied to measurement of ejection fraction is an emerging field of medical mathematics and subsequent computational applications. The first common measurement method is echocardiography, [7] [8] although cardiac magnetic resonance imaging (MRI), [8] [9] cardiac computed tomography, [8] [9] ventriculography and nuclear medicine (gated SPECT and radionuclide angiography) [8] [10 ...

  7. Pros & Cons of Fractional Reserve Banking - AOL

    www.aol.com/pros-cons-fractional-banking...

    Before founding the Federal Reserve in 1913, the US Government established the United States central banking system with the National Bank Acts of 1863 and 1864. These acts set the reserve ...

  8. Angina - Wikipedia

    en.wikipedia.org/wiki/Angina

    The diagnosis of MVA may require catheterization during which there is an assessment of the microcirculatory response to adenosine or acetylcholine and measurement of coronary and fractional flow reserve.

  9. Cardiac output - Wikipedia

    en.wikipedia.org/wiki/Cardiac_output

    Major factors influencing cardiac output – heart rate and stroke volume, both of which are variable. [1]In cardiac physiology, cardiac output (CO), also known as heart output and often denoted by the symbols , ˙, or ˙, [2] is the volumetric flow rate of the heart's pumping output: that is, the volume of blood being pumped by a single ventricle of the heart, per unit time (usually measured ...