16 träffar

ArticleEchocardiography
Relaxation of the left ventricle

…refers to the sequence of activation of the ventricular myocardium. The ventricles should be depolarized (activated) by impulses spreading through the left and right bundle…

ArticleEchocardiography
Technical aspects of the ultrasound image

…Directing and focusing ultrasound waves The direction and focus of ultrasound waves can be adjusted by varying the sequence of activation of the piezoelectric crystals…

ArticleCardiology
The ischemic cascade

…sequence of events during myocardial ischemia, beginning with perfusion abnormalities and ultimately leading to chest pain (angina). Myocardial perfusion imaging techniques, such as SPECT and…

ArticleCardiology
Ventricular Tachycardia

…tissue [5] . Polymorphic VT (PMVT): Characterized by a continuously changing QRS morphology and axis, indicating a dynamic sequence of ventricular activation. PMVT is frequently associated…

ArticleArrhythmias and arrhythmology
Vasovagal Syncope: Diagnosis, Tilt Testing and Treatment

…and finally a reduction in heart rate. This sequence is characteristic of neurally mediated hypotension. Clinical Presentation and Symptoms Vasovagal syncope is frequently preceded by…

ArticleCardiology
Cardiac amyloidosis

…TTR genetic sequence [9, 19]. It is currently considered the most frequent form of CA worldwide [15]. Clinical Presentation and Course Both AL and ATTR…

ArticleEchocardiography
Two-dimensional (2D) echocardiography

…and then spread over a larger area. The focus can be adjusted by varying the sequence of activation of the piezoelectric crystals. The density of…