scholarly journals Peak velocity estimation in aortic stenosis patients using a fast three-directional two-dimensional phase contrast technique in a single breath-hold: comparison to unidirectional phase contrast MRI and transthoracic echocardiography

2016 ◽  
Vol 18 (S1) ◽  
Author(s):  
Juliana Serafim da Silveira ◽  
Matthew E Smyke ◽  
Rizwan Ahmad ◽  
Ning Jin ◽  
Debbie Scandling ◽  
...  
Keyword(s):  
Aortic Stenosis ◽  
Phase Contrast ◽  
Peak Velocity ◽  
Velocity Estimation ◽  
Breath Hold ◽  
Two Dimensional ◽  
Phase Contrast Mri ◽  
Single Breath ◽  
Single Breath Hold ◽  
Contrast Technique

Single-breath-hold venous or arterial flow-suppressed pulmonary vascular MR imaging with phased-array coils

1993 ◽  
Vol 3 (4) ◽  
pp. 611-616 ◽  
Author(s):  
Thomas K. F. Foo ◽  
James R. Macfall ◽  
H. Dirk Sostman ◽  
Cecil E. Hayes
Keyword(s):  
Mr Imaging ◽  
Phased Array ◽  
Arterial Flow ◽  
Breath Hold ◽  
Single Breath ◽  
Single Breath Hold ◽  
Phased Array Coils ◽  
Array Coils

scholarly journals Quantitative single breath-hold renal arterial spin labeling imaging at 7T

2017 ◽  
Vol 79 (2) ◽  
pp. 815-825 ◽  
Author(s):  
Xiufeng Li ◽  
Edward J. Auerbach ◽  
Pierre-Francois Van de Moortele ◽  
Kamil Ugurbil ◽  
Gregory J. Metzger
Keyword(s):  
Arterial Spin Labeling ◽  
Spin Labeling ◽  
Breath Hold ◽  
Single Breath ◽  
Single Breath Hold

Changing effect of lung volume on respiratory drive in man

1975 ◽  
Vol 38 (5) ◽  
pp. 768-773 ◽  
Author(s):  
N. N. Stanley ◽  
M. D. Altose ◽  
S. G. Kelsen ◽  
C. F. Ward ◽  
N. S. Cherniack
Keyword(s):  
Human Subjects ◽  
Inhibitory Effect ◽  
Breath Holding ◽  
Breath Hold ◽  
Respiratory Drive ◽  
Lung Inflation ◽  
Single Breath ◽  
Single Breath Hold ◽  
Sustained Effect ◽  
Residual Capacity

Experiments were conducted on human subjects to study the effect of lung inflation during breath holding on respiratory drive. Two series of experiments were performed: the first to examine respiratory drive during a single breath hold, the second designed to examine the sustained effect of lung inflation on subsequent breath holds. The experiments involved breath holding begun either at the end of a normal expiration or after a maximum inspiration. When breath holding was repeated at 10-min intervals, the increase in BHT produced by lung inflation was greater in short breath holds (after CO2 rebreathing) than in long breath holds (after hyperventilation). If breath holds were made in rapid succession, the first breath hold was much longer when made at total lung capacity than at functional residual capacity, but this effect of lung inflation diminished in subsequent breath holds. It is concluded that the inhibitory effect of lung inflation decays during breath holding and is regained remarkably slowly during the period of breathing immediately after breath holding.

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