Agenda
MSc SS Thesis Presentation
- Thursday, 13 October 2016
- 10:00-10:45
- EWI HB09.150 Dijkstrazaal
Accelerating Diffusion-Weighted Chemical Shift Imaging using Compressed Sensing with Parameter Mapping
Joost van der KempDiffusion-weighted chemical shift imaging (DW-CSI) is a recently developed MRI modality that enables radiologists to reveal the diffusion properties of small molecules that act in metabolic reactions in-vivo. In order to extract this diffusion information from a patient, DW-CSI requires approximately one hour of scan time. This extensive scan time makes DW-CSI currently inapplicable for the clinical setting. This thesis describes the closely intertwined implementation of compressed sensing with parameter mapping (CS-PM) in the DW-CSI processing pipeline to accelerate its acquisition. The CS-PM algorithm enables DW-CSI to acquire less measurements (sample under Nyquist) and subsequently reconstruct the missing samples with the use of a custom designed, model-based sparsifying dictionary. As proof of concept, CS-PM was evaluated on the water signal of a non-water-suppressed scan. The results of the integration of CS-PM in the DW-CSI processing pipeline already indicate a feasible acceleration factor of 1.5 along with valuable insight to further improve the performance of DW-CSI in combination with CS-PM.
Additional information ...Agenda
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- 10:00
- HB18.090
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- Mon, 6 May 2024
- 12:30
- Aula Senaatszaal
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- Tue, 21 May 2024
- 10:00
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- 27 -- 28 May 2024
- Aula, TU Delft
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- Tue, 18 Jun 2024
- 15:00
- Aula Senaatszaal
PhD Thesis Defence
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Model-based feature engineering of atrial fibrillation
- Mon, 24 Jun 2024
- Aula, TU Delft