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Regional Myocardial Contractile Function: Wall Motion Abnormalities

…If the ischemia persists for 20 minutes, myocardial infarction ensues, resulting in permanent wall motion abnormalities. Figure 1. Standardized myocardial segmentation and nomenclature for echocardiography…

🟠 Left ventricular dimension and systolic function

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

Doppler effect and Doppler echocardiography

…the reflected sound waves will have the same frequency as the sound waves emitted by the sound source. If the reflector is in motion, however…

Tissue Doppler (Tissue Velocity Imaging)

…and myocardium in terms of the reflected ultrasound waves. (1) The velocity of myocardial motion is significantly lower than the velocity of blood flow. Therefore…

Acute vertigo: quick reference for HINTS and differential diagnosis

…onset, continuous dizziness lasting hours to days, often with nausea, nystagmus, motion intolerance and difficulty walking Vestibular neuritis, cerebellar or brainstem infarction, haemorrhage, drug toxicity…

Myocardial Injury Versus Infarction: Interpreting Troponin Elevation

…evidence of new loss of viable myocardium or a new regional wall motion abnormality in an ischaemic distribution Identification of a coronary thrombus by angiography…

Myocardial Perfusion Imaging With SPECT and PET

…risk of major adverse cardiovascular events. Assess left ventricular volumes, regional wall motion, and ejection fraction using ECG gated acquisitions. Quantify myocardial blood flow and…

Stress Echocardiography: Protocols and Interpretation

…supplied by the narrowed artery. The principal diagnostic endpoint is a new or worsening regional wall motion abnormality (RWMA) during stress. A fixed abnormality that…

Fractional shortening for estimation of ejection fraction

…25% Normal FS, 2D measurement 18% Advantages of fractional shortening If ventricular geometry is normal and there are no regional wall motion abnormalities, then fractional…

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