GW28-e0166 Can we use high intensity reflected motion signals (RIMS) for assessment of local myocardial contractility?

Myocardial strain: can we finally measure contractility?

The measurement of myocardial performance is of critical importance for the diagnosis and management of the patient with cardiac disease. Despite decades of investigation, the search for the optimal method to measure the contractile properties of the myocardium still continues. Extrapolations from experiments in isolated muscle preparations and the intact animal heart have resulted in invasive ...

Why Can We See a Local Spread of Chikungunya Virus (CHIKV) Infection?

High-intensity transient signals.

An asymptomatic 33 year-old Caucasian male presented for routine imaging following a St. Jude's bi-leaflet aortic valve replacement some 6 months previously. The images show high-intensity transient signals (HITS) just below the aortic valve in both par-asternal and apical long axis views. The valve replacement otherwise appeared healthy. HITS are thought to be microbubbles which occur due to c...

diagnostic and developmental potentials of dynamic assessment for writing skill

این پایان نامه بدنبال بررسی کاربرد ارزیابی مستمر در یک محیط یادگیری زبان دوم از طریق طرح چهار سوال تحقیق زیر بود: (1) درک توانایی های فراگیران زمانیکه که از طریق برآورد عملکرد مستقل آنها امکان پذیر نباشد اما در طول جلسات ارزیابی مستمر مشخص شوند; (2) امکان تقویت توانایی های فراگیران از طریق ارزیابی مستمر; (3) سودمندی ارزیابی مستمر در هدایت آموزش فردی به سمتی که به منطقه ی تقریبی رشد افراد حساس ا...

Analysis of left ventricular wall motion by reflected ultrasound. Application to assessment of myocardial function.

Ultrasound echocardiograms from the septal and posterior left ventricular walls were displayed with a simultaneously recorded electrocardiogram, phonocardiogram, and indirect carotid pulse. These echoes differed in both amplitude and waveform. The contour of the posterior wall echo resembled an inverted ventricular volume curve, while the septal echo was of smaller amplitude and had a character...