CMR acquisition parameters The primary method used to assess the LV is balanced steady-state free precession (bSSFP) technique at 1.5 or 3 T CMR (Table1). bSSFP technique yields improved blood-myocardial contrast compared to its predecessor, fast gradient echo (FGRE) sequence. Table 1 References...
Measurements of flow are most precise when (a) the imaging plane is positioned perpendicular to the vessel of interest and (b) the velocity encoded gradient echo (Venc) is encoded in a through plane direction [70]. The slice thickness should be ≤ 7 mm to minimize partial volume effect...
Based on our tests, the generalized gradient approximation (GGA) function of PW91 would overestimate the inter-molecular interactions. The RPBE function22, on the other hand, produces a slight red-shift in the H-bonds but greater accuracy in the intra-molecular vibrations; we therefore chose the...
The Doppler-estimated peak systolic tricuspid pressure gradient is the most reliable noninvasive method for the evaluation of pulmonary artery systolic pressure in patients with tricuspid regurgitation. Our goal was to evaluate the range of this gradient in healthy persons and determine a normal upper ...
Since slope gradient was one of the key factors affecting erosion process, three runoff plots were constructed on hillsides with a similar slope gradient of 20°. Point method was used to observe the hillside erosion process (Zhang et al., 2003). Each runoff plot was composed of impermeable ...
which contributes to a lower AV gradient even when the AS is severe.4 In other patients with extremes of body habitus, the haemodynamic consequences of AV area may be better reflected by indexing the value to body surface area; whereas an AV area of 1.0鈥卌m2 may not be associated with ...
Note that at the end of the video, the short array of cytonemes coincides with the peak of the Hh activity gradient. The longest cytonemes (red line) cover most of the Hh activity gradient. Video begins at around 22 h APF; time interval between frames, 2.5 min. (MOV 9086 kb) ...
Mononuclear cells (MNC) were isolated from heparinized peripheral blood of patients or normal donors by Ficoll-Hypaque density gradient centrifugation. Whole blood from normal donors was preincubated for 1 hour at 37°C with 1 mg/mL carbonyl iron to eliminate phagocytic cells. Plastic-adherent cells...
During conventional ventilation, this pressure gradient is the difference between alveolar pressure and continuous distend- sense, being on the order of 1 cm H20, it still probably fell in ing pressure. In the oscillatory ventilator, this pressure is the the realm of nonlinear behavior for large-...
Oxygen concentration gradient across the ovarian follicular epithelium: model, predictions and implications. Hum Reprod. 1986;1:65–8. PubMed CAS Google Scholar Leese HJ, Lenton EA. Glucose and lactate in human follicular fluid: concentrations and interrelationships. Hum Reprod. 1990;5:915–9. ...