| Paper: | TA-L5.3 |
| Session: | Biomedical Imaging II: MRI and Segmentation |
| Time: | Tuesday, September 18, 10:30 - 10:50 |
| Presentation: |
Lecture
|
| Title: |
ROBUST SPATIAL PHASE UNWRAPPING FOR ON-LINE MR-TEMPERATURE MONITORING |
| Authors: |
Baudouin Denis de Senneville; Laboratory for Molecular and Functional Imaging | | |
| | Gregory Maclair; LaBRI | | |
| | Mario Ries; Laboratory for Molecular and Functional Imaging | | |
| | Pascal Desbarats; LaBRI | | |
| | Bruno Quesson; Laboratory for Molecular and Functional Imaging | | |
| | Chrit Moonen; Laboratory for Molecular and Functional Imaging | | |
| Abstract: |
Magnetic Resonance (MR) systems can be used to monitor temperature changes in and around a treated region during an hyperthermic ablation procedure. Dynamic temperature monitoring allows on-line prediction of cellular destruction during the intervention. MRI systems associate each volume unit with a complex number. Phase component is 2.pi-periodic (it is a function of the wrapped phase) and accounts for noise sources present in MR imaging. Robust spatial phase unwrapping is a necessary prerequisite for several applications. This study proposes a spatial phase unwrapping algorithm for MR images, allowing a real-time implementation for on-line temperature monitoring. |
