Magnetic resonance imaging using flip angle gradients
β Scribed by Philip H Bolton
- Publisher
- Elsevier Science
- Year
- 1985
- Weight
- 159 KB
- Volume
- 63
- Category
- Article
- ISSN
- 0022-2364
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
## Abstract The tradeoff between gradient performance factors, size of the imaging region, and physiological factors such as nerve stimulation typically leads to compromises in gradient design and ultimately suboptimal imaging performance. Local gradient systems can add some performance flexibility
A novel X-band CW EPR imaging has been developed using magnetic-field-gradient (MFG) spinning to obtain spatial distributions of electron paramagnetic species. Spinning MFG EPR imaging for 65 projection spectra required just 55 s while conventional imaging took 11 min 40 s, that is, the acquisition
## Abstract In spoiled gradient echo sequences, the __T__~1~βweighting of image contrast is strongly affected by a nonlinear interaction of two sequence parameters, repetition time (TR) and flip angle (Ξ±). If Ξ± is not properly adjusted to compensate for variation in TR due to changing resolution, b