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🟠 Left ventricular dimension and systolic function

…or no thickening (<10%) 3 Dyskinesia Paradoxical thinning and/or outward directed motion during systole 4 Aneurysmatic Diastolic deformation 5 Recommended by the American Society…

Physics of myocardial perfusion imaging (SPECT, PET): Radiotracers, perfusion, blood flow and viability

…to construct images with high spatial and temporal resolution. PET offers higher spatiotemporal quality, as compared with SPECT. Quantification of blood flow using PET Quantitative…

Overview of the ECG Waves, Deflections, Intervals, Durations

…point and the ST segment The ST segment must always be studied carefully since its appearance may be changed in a wide range of serious…

Principles of myocardial perfusion imaging (SPECT, PET), coronary blood flow and flow reserve (CFR)

…range of 50 120 mmHg. This process is primarily mediated by local metabolic mechanisms, which adjust vascular tone in response to myocardial oxygen demand, and…

Digoxin: Dosing, Therapeutic Range and Toxicity Management

…refractoriness, and prolong AV nodal refractoriness. Its electrophysiologic effects on the His Purkinje system and ventricular muscle are minimal, except in cases of toxic concentrations…

The electrical axis of the heart (ECG axis)

…longitudinal axis (to the left and downwards). Figure 38 shows the coordinate system where the green area displays the range of the normal heart axis…

The electrical axis of the heart (heart axis): ECG & physiology

…and downwards). Figure 38 shows the coordinate system where the green area displays the range of normal heart axis. Figure 38. The electrical axis of…

The 3-phase model of sudden cardiac arrest

…The existence of these stages is supported by a wide range of experimental and clinical studies. The electrical phase and circulatory phase are explained by…

Diagnosis and management of supraventricular and ventricular tachyarrhythmias: Narrow complex tachycardia &amp; wide complex tachycardia

…tachycardias should be considered pathological and the task is to clarify the cause of the tachycardia. The cause may range from benign to highly malignant…

Atrial and ventricular enlargement: hypertrophy and dilatation on ECG

…the ECG in terms of sensitivity and specificity. Nevertheless, to detect hypertrophy/dilatation using the ECG, a wide range of criteria and algorithms have been…

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