Parallel Imaging at 7 Tesla
Outline
My background
Tour of CMRR
CMRR Magnets
GE safety movie
What is MR
Slide 8
What is MR
Slide 10
What is MR
Spatial localization
MR signal
Imaging trade-offs
"Faster ways to run
k-space..."
What we get with higher
frequency spectrum – larger k-space
Selective Update idea’s
Keyhole
Generalized Series
Slide 20
Formulation of a minimum
cross-entropy problem
Minimum cross-entropy
Slide 23
Algorithm for Generalized
Series
What is the resolution
How to Accommodate greater
changes?
Extending just one channel
The question/idea
The alternative
RFOV image
Surface coils in “image”
space
Undersampling Cartoon
The linear system
SENSE (SENsitivity
ENcoding)
SENSE equation remarks
Coil-sensitivities
Resulting image
g-factor vs. number of
coils
Image restoration
algorithms
How does it work, =
pictures
Slide 41
T1 images
How does it work
FLASH images, 1mmx1mm
Slide 45
How does it work
Functional MRI
Activation map
Slide 49
Conclusion
Not mentioned – but should
have
Acknowledgement