Cardiac Imaging in Clinical Practice by Dmitriy Kireyev, Judy Hung PDF

By Dmitriy Kireyev, Judy Hung

ISBN-10: 3319214578

ISBN-13: 9783319214573

ISBN-10: 3319214586

ISBN-13: 9783319214580

This e-book presents a concise consultant to echocardiography, SPECT, CT and MRI, together with either the fundamentals of cardiac imaging in addition to tables of normal/abnormal values and guidelines.

With advances in know-how, cardiac CT and MRI have gotten extra renowned yet are frequently constrained to greater scientific facilities. through together with the fundamentals of those modalities, this e-book presents a finished consultant for a variety of doctors. As physicians outdoors of cardiology usually don't have adequate publicity to nuclear tension checks, this e-book comprises SPECT and tension try protocols for you to facilitate decision-making while ordering checks and analyzing results.

Cardiac Imaging in scientific Practice is a short reference consultant and may be important at a number of degrees of educating, allowing the ebook for use as a uncomplicated and complicated reference resource. As such, it really is applicable for college students, citizens, fellows and employees attendings who desire a useful and convenient connection with the diagnostic recommendations open to them.

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49 cm 2 2 EROA = 2 π R 2 υ aliasing where R is the radius of the PISA zone υmax ( MR ) 46 D. Kireyev and J. Hung Regurgitant Volume: RV = EROA × VTI MR π π 2 2 RV = ( MV D ) ⋅ VTI MV − ( LVOT D ) ⋅ VTI MV 4 4 π 2 RV = Stroke V − ( MV D ) ⋅ VTI MV 4 Regurgitant Fraction 2 π  RF = RV / SV = RV /  ( MV D ) ⋅ VTI MV  4  –– –– –– –– technically demanding magnify PISA region (ZOOM) baseline shift toward direction of flow PISA radius measured in mid-late systole Tricuspid Regurgitation (a) Size of regurgitant jet (Fig.

Circulation. 1977;56(2):278–84. Chapter 4 Valvular Quantification Dmitriy Kireyev and Judy Hung Echocardiography is the primary imaging modality to assess valvular quantification such as degree of valve stenosis and regurgitation as well as pressures in cardiac chambers. Flow velocities across valves and cardiac chambers can be measured using Doppler echocardiography. 1). This is the basis for much of valvular quantification and cardiac chamber pressures. The modified Bernoulli equation is derived from the Bernoulli equation which relates pressure drop as fluid speed changes across a tube due to change in diameter of the tube.

3 illustrates continuity equation which is used to calculate aortic valve area in aortic stenosis. Flow proximal (Q1) to stenosis must equal flow distal (Q2) to stenosis by principle of conservation of mass. Flow is calculated as cross sectional area times velocity. 785 D ( LVOT ) ⋅ VTI ( LVOT ) 2 ≈ VTI ( AV ) 36 D. Kireyev and J. 785 D ( LVOT ) × ( LVOT ) 2 Or similarly AVA = ( AV ) Points to remember: • The shape of LVOT is not circular but elliptical in many patients and thus the AVA calculation is often underestimated • The actual calculated area is effective orifice area, not the anatomical valve area (and thus is smaller).

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Cardiac Imaging in Clinical Practice by Dmitriy Kireyev, Judy Hung

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