ESTRO 2024 - Abstract Book

S3859

Physics - Image acquisition and processing

ESTRO 2024

3. Demol « Monte Carlo calculation based on hydrogen composition of the tissue for MV photon radiotherapy » Journal of Applied Clinical Medical Physics

4. Largent « Head-and-Neck MRI-only radiotherapy treatment planning: From acquisition in treatment position to pseudo-CT generation » Cancer/Radiothérapie

5. Mezer « Evaluating Quantitative Proton-Density-Mapping Methods » Human Brain Mapping

6. https://users.fmrib.ox.ac.uk/~mchiew/docs/SENSE_tutorial.html

7. Uecker « ESPIRiT — An Eigenvalue Approach to Autocalibrating Parallel MRI: Where SENSE meets GRAPPA » Magnetic resonance in medicine

8. Walsh « Adaptive reconstruction of phased array MR imagery » Magnetic Resonance in Medicine

9. Schmitt « Recommendations of Choice of Head Coil and Prescan Normalize Filter Depend on Region of Interest and Task » Frontiers in Neuroscience

10. Jellus « Image Quality Improvement of Composed MR Images by Applying a Modified Homomorphic Filter »

11. https://www.elekta.com/products/oncology-informatics/elekta-one/treatment-applications/monaco/

1738

Poster Discussion

Repeatability of abdominal DWI using different motion compensation techniques on a 1.5T MR-Linac

Koen P.A. Baas 1 , Sabine Visser 1 , Vivian W.J. van Pelt 1 , Damien J. McHugh 2 , Daniela Thorwarth 3 , Andreas Wetscherek 4 , Tim Schakel 5 , Marijn Kruiskamp 6 , Jihong Wang 7 , Marlies E. Nowee 1 , Uulke A. van der Heide 1 , Eric S. Paulson 8 , Petra J. van Houdt 1 1 The Netherlands Cancer Institute, Department of Radiation Oncology, Amsterdam, Netherlands. 2 The Christie NHS Foundation Trust, Christie Medical Physics and Engineering, Manchester, United Kingdom. 3 University Hospital Tübingen, Section for Biomedical Physics, Department of Radiation Oncology, Tübingen, Germany. 4 The Institute of Cancer Research and The Royal Marsden NHS Foundation Trust, Joint Department of Physics, London, United Kingdom. 5 UMC Utrecht, Department of Radiotherapy, Utrecht, Netherlands. 6 Philips Healthcare, MR Clinical Science, Best, Netherlands. 7 The University of Texas MD Anderson Cancer Center, Department of Radiation Physics, Houston, USA. 8 Medical College of Wisconsin, Department of Radiation Oncology, Milwaukee, USA

Purpose/Objective:

For many tumor sites changes in the apparent diffusion coefficient (ADC), derived from diffusion-weighted imaging (DWI), have been reported during treatment [1]. However, DWI in the abdomen is affected by respiratory motion,