نتایج جستجو برای: diastole
تعداد نتایج: 4129 فیلتر نتایج به سال:
Background Accurate estimation of right ventricular (RV) measurements is important in the clinical assessment of patients with pulmonary hypertension and has a potential role as an end-point in clinical trials. However, there is no clear agreement as to how RV mass measurements should be performed. RV mass is traditionally measured in diastole even though RV musculature is known to be thicker i...
It has recently been shown (1) that myocardial nuclei become longitudinally compressed during systole and extended during diastole . Myocardial nuclear length varies directly with the sarcomere length, and there is no slippage of sarcomere segments past the nuclear envelope . At sarcomere lengths corresponding to diastole the nuclear envelope is straight, but for every incremental decrease in s...
We developed a portable needle-probe videomicroscope with a charge-coupled device (CCD) camera to visualize the subendocardial microcirculation. In 12 open-chest anesthetized pigs, the sheathed needle probe with a doughnut-shaped balloon and a microtube for flushing away the intervening blood was introduced into the left ventricle through an incision in the left atrial appendage via the mitral ...
Cardiomyopathies are the most common type of cardiac diseases in cats. Although some normal echocardiographic values for cats have been published, there are variations based on breeds and gender. The objective of this study is to determine normal reference values for M-mode echocardiographic parameters in nonsedated healthy adult Van cats and to compare those values with data reported for nonse...
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