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- Aronsson, M, et al.
(författare)
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Daisie- och de hundra värsta
- 2008
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Ingår i: Fauna & Flora. ; 103:2, s. 2-9
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Tidskriftsartikel (refereegranskat)
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3. |
- Lagerstrand, Kerstin M, et al.
(författare)
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Flow-induced disturbances in balanced steady-state free precession images: means to reduce or exploit them.
- 2009
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Ingår i: Magnetic resonance in medicine : official journal of the Society of Magnetic Resonance in Medicine / Society of Magnetic Resonance in Medicine. - : Wiley. - 1522-2594. ; 61:4, s. 893-8
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Tidskriftsartikel (refereegranskat)abstract
- In this work computer simulations and phantom measurements are presented that show the effect of flow on in-plane balanced steady-state free precession images. The images were studied for various flow velocities, excitation regions, relaxation times, RF-pulse angles, and off-resonance frequencies. The work shows that flow-induced disturbances are present in the images, but can be reduced by the application of inhomogeneous excitation regions. Also, a velocity quantification method that utilizes the disturbances was developed and proved to quantify flow velocities accurately. The work concluded that the flow-induced disturbances can be reduced to improve image quality, but can also be exploited to quantify the flow velocity.
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