Velocity mapping
Inter study reproducibility of interleaved spiral phase velocity mapping of renal artery haemodynamics
... Phase velocity mapping for the assessment of RABF has been generally performed using a segmented gradi- ent echo sequence [16-24] although more recently, seg- mented field-echo echo-planar [25,26] and ...
10
Efficient and reproducible high resolution spiral myocardial phase velocity mapping of the entire cardiac cycle
... 3-directional velocity mapping (acquired spatial resolution: ...resulting velocity-time curves cannot be detected and the accuracy of the peak velocity measurements, and the times to those ...
14
The effects of breath holding on pulmonary regurgitation measured by cardiovascular magnetic resonance velocity mapping
... Background: Pulmonary regurgitation is a common and clinically important residual lesion after repair of tetralogy of Fallot. Cardiovascular magnetic resonance (CMR) phase contrast velocity mapping is ...
6
Validation of high temporal resolution spiral phase velocity mapping of temporal patterns of left and right coronary artery blood flow against Doppler guidewire
... phase velocity mapping technique [8–11] but there are few direct comparisons with Doppler guidewire ...flow velocity in the cardiac cycle are significantly less than those measured by Doppler, there ...
13
Comprehensive 4D velocity mapping of the heart and great vessels by cardiovascular magnetic resonance
... It is well known that phase contrast CMR can be sub- ject to phase offset errors associated with eddy cur- rents, Maxwell terms, and gradient field imperfections [45-47]. These inaccuracies tend to increase with dis- ...
22
Three dimensional three component whole heart cardiovascular magnetic resonance velocity mapping: comparison of flow measurements from 3D and 2D acquisitions
... contrast velocity mapping using cardiovascular magnetic resonance (CMR) gives quantitative informa- tion of the blood flow in a given vessel and can be per- formed on a 2D slice or in a 3D ...
7
4D cardiovascular magnetic resonance velocity mapping of alterations of right heart flow patterns and main pulmonary artery hemodynamics in tetralogy of Fallot
... CMR examinations in volunteers were all performed at 3.0T (MR750, GE Healthcare, Waukesha, WI). CMR examinations in rTOF subjects were acquired on clinical 1.5T (HDx, GE Healthcare, Waukesha, WI) and 3.0T (MR750, GE ...
12
Longitudinally and circumferentially directed movements of the left ventricle studied by cardiovascular magnetic resonance phase contrast velocity mapping
... contrast velocity mapping were acquired using a black blood segmented k-space spoiled gradient echo sequence (TR = ...obtain velocity measurements, three equidistant short-axis slices along the left ...
8
A multi center inter manufacturer study of the temporal stability of phase contrast velocity mapping background offset errors
... CMR systems and phase contrast velocity acquisitions The study was limited to 1.5T whole body systems as this is currently the most widely-used main field strength for cardiac CMR. Pre-emphasis for reduction of ...
7
A Review on Applications of Imaging Synthetic Aperture Radar with a Special Focus on Cryospheric Studies
... yielding velocity for flux-gate based mass- balance assessment, mapping flow of mountain glaciers, and capturing the geomorphic traces of past ice ...Antarctic mapping mission ...three-component ...
13
Direct mapping of the temperature and velocity gradients in discs : Imaging the vertical CO snow line around IM Lupi
... and velocity in a protoplanetary ...the velocity decreases towards the disc ...the velocity rotation field becomes significantly sub-Keplerian, in agreement with the expected steeper pressure ...
11
XML to Annotations Mapping Definition with Patterns
... Motivation. Sometimes the Nested Annotations pattern is not suitable for modelling the XML tree. In case of the object-relational mapping tools such as JPA the columns of the database table belong to the table. In ...
24
Simultaneous mapping of temporally resolved blood flow velocity and oxygenation in femoral artery and vein during reactive hyperemia
... that velocity is resolved along a single spa- tial direction only and thus inherently averaged along the projected ...peak velocity cannot be quantified but rather an average in the projection direc- tion ...
8
man022 02 Parallel Data Transforms pdf
... Map table full Mapping not defined Mapping description incorrect Mapping identifier expected Mapping is not initialised Mapping may not be initialised Mapping name missing Mapping vector[r] ...
92
The measurement of velocity
... Figures 6.11 to 6.16 give Fourier coherence phase and scatter functions. Since there were six receivers on the circle of the array these functions are calculated for orders 0, 1, 2, 3(or -3), 4 (or -2) and 5 (or -1). The ...
125
Bioenergy grass feedstock: current options and prospects for trait improvement using emerging genetic, genomic, and systems biology toolkits
... genetic mapping resources There are tens of thousands of bioenergy grass geno- types in seed banks that have yet to be screened for fa- vorable bioenergy ...
20
On split common solution problems: new nonlinear feasible algorithms, strong convergence results and their applications
... Keywords: Lipschitzian; demicontractive mapping; pseudocontractive mapping; quasi-nonexpansive mapping; nonexpansive mapping; split common solution problem (SCSP); iterative algorithm; s[r] ...
16
Speed&Velocity
... In the Sestriera section (top) of the course in the Sochi Winter Olympics, the majority of the downhill skiers covered a distance of 76 meters in 2 seconds.What is the speed of th[r] ...
27
Ratio of solid velocity to mixture velocity in slurry flow
... the velocity ratio in terms of dimensionless parameters representing the distribution of the particles in the mixture, the slip between the solid particles and the adjacent fluid, and the velocity ...
86
Velocity resolved reverberation mapping of five bright Seyfert 1 galaxies
... line-of-sight velocity bins to see if there are any indications of gross kinematic sig- nature and, in the cases of NGC 3227, NGC 3516, and NGC 5548, compare these results with those obtained by Denney et ...the ...
32