including chamber size and function, diameters of the aorta and pulmonary arteries, flow and myocardial relaxation times. Knowledge of reference ranges (“normal values”) for quantitative CMR is crucial to interpretation of results and to distinguish normal from...
including chamber size and function, diameters of the aorta and pulmonary arteries, flow and myocardial relaxation times. Knowledge of reference ranges (“normal values”) for quantitative CMR is crucial to interpretation of results and to distinguish normal from...
Normal reference ranges are defined as the 95% prediction interval, which is calculated by [12] mean±t0.975,n−1(SD)(n+1)/n. For measured CMR variables (volume, mass) and derived variables (ejection fractions), reference ranges were calculated after excluding the outliers and presented in...
Our aim was to establish the normal ranges of the ECG for pediatric and adult Brazilian primary care patients. This retrospective observational study assessed all the consecutive 12-lead digital electrocardiograms of primary care patients at least 1聽year old in Minas Gerais state, Brazil, recorded ...
While hormonal changes throughout a woman’s life, especially during pregnancy and menopause, can influence these readings, below are the clinical standards for a woman. What is a normal blood pressure range for children? Normal blood pressure ranges for children typically start at lower levels tha...
A normal PR interval ranges between 0.12 seconds to 0.22 seconds.The flat line between the end of the P-wave and the onset of the QRS complex is called the PR segment and it reflects the slow impulse conduction through the atrioventricular node. The PR segment serves as the baseline (also...
The ECG pattern of acut (generalized) pericarditis not due to MI is produced by the associated epicardial epimyocarditis, which in turn results in diffuse "epicardial injury". The ST segments can be elevated in all leads except AVR and rarely, in V I (see ECG in definition pericarditis). ...
This is the first study to provide reference CMR values for aortic distensibility and PWV in children and young adults, in conjunction with measurements of aortic size. The percentile ranges show that aortic distensibility decreases with age, whereas PWV increases with age. Age-associated changes and...
In people with a normal AV node, the rate of ventricular contraction in untreated disease usually ranges from 80 to 180 beats/minute; the higher the transmission, the higher the heart rate. Some older people have slow transmission through the AV node due to disease within the AV node. When...
Normal values for cardiovascular magnetic resonance in adults and children J Cardiovasc Magn Reson, 17 (2015), p. 29 View PDFView articleView in ScopusGoogle Scholar 14 S.E. Petersen, N. Aung, M.M. Sanghvi, et al. Reference ranges for cardiac structure and function using cardiovascular magne...