QA oral

OQA1 Geometric and dosimetric validation of 4D-MRI guided liver SBRT on the MR-linac. van de Lindt

OQA2 Dosimetric impact of MR geometric distortions – A study on head and cancers Adjeiwaah

OQA3 Longitudinal measurements of multiparamteric MRI: A phantom study. Wang

OQA4 Heterogeneous and homogeneous 3D dosimeters for MR-IGRT systems. Lee

OQA5 Surface dose measurements in an MR image-guided radiation therapy system using OSLDs: comparison with and without a static 0.35 T magnetic field. Cammin

OQA6 Commissioning of a 4D dynamic MRI motion phantom on a 3T MR scanner: motion validation study. Schneider

OQA7 Indication of accurate gold fiducial marker identification in a prostate MRI only radiotherapy workflow using C-Arm X-ray imaging. Gustafsson

OQA8 Novel silicon dosimeters that measure dose in the build-up region and penumbra of an MRI-linac. Metcalfe

OQA9 Error estimation of slice chipping effects due to gradient non-linearity on the MR-Linac. Borman

OQA10 Dosimetric verification of Monte Carlo simulated effects of air cavities during MR guided Radiotherapy using EBT3 GafChromic film. Shortall

OQA11 Spiraling contaminant electrons increase doses to surfaces outside the photon beam of an MRI-linac with transverse magnetic field. Hackett

OQA12 Experimentally derived ion chamber magnetic field correction factors using a variable field on an in-line MR-linac.

OQA13 Direct calorimetric measurement of ion chamber magnetic field correction factors, kB, in a 1.5 T B-field of an MRI-linac. de Prez

OQA14 Reference dosimetry in MRI-linac using alanine detector. Billas

 

QA Posters

QA1 Uncertainties in the accumulation of local physical and biological dose from daily patient imaging. Nina Niebuhr

QA2 Polymer gel-based measurements of radiation isocenter accuracy in magnetic fields. Stefan Dorsch

QA3 Verification and commissioning of a magnetic resonance image guided linear accelerator’s Monte Carlo dose calculation algorithm within a heterogeneous phantom. Alex Price

QA4 Characterising the temporal stability of full field of view MRI geometric distortions on multiple scanners. Emily Johnstone

QA5 Absorbed dose calculation based on CBCT data for head and neck cancer patients. Emilia Palmér

QA6 Spectral characterization of plastic scintillation detector response as a function of magnetic field strength. Eric Simiele

QA7 Forward Peaked Finite Element Angular Discretization towards a Fast Deterministic Dose Calculation for MRI-guided Radiotherapy. Ray Yang

QA8 Magnetic field effects on beam output from a 1.5 T pre-clinical MR-linac. Hannah J. Lee

QA9 MR-guided needle implant device for HDR brachytherapy: in air and phantom measurements of spatial accuracy. Marinus Moerland

QA10 Experimental determination of the intra-type variation of ionization chamber’s response in magnetic fields. Stefan Pojtinger

QA11 Simplified CT images for dose calculation for pelvic tumour patients. Josefine Handrack

QA12 An assessment of MRI reproducibility for the purpose of radiotherapy treatment planning. Lois, Holloway

QA13 QuantMRI: An automated imaging pipeline for the management of MR data. Teo Stanescu

QA14 Reference dosimetry in the presence of a magnetic field: a novel formalism. Bram van Asselen

QA15 Characterisation of MR Spatial Distortion of the Elekta MR-Linac. Chick, Joan

QA16 Cone beam CT as a clinical QA tool for prostate MRI-only workflows. Emilia Persson

QA17 The assessment of polymer gel for 3D dosimetry in magnetic resonance-image guided radiotherapy. Yvonne Roed

QA18 Characterisation of the Starcheck maxi MR ionization chamber array in an inline magnetic field. Urszula Jelen

QA19 The dose response of the PTW 60019 microDiamond in magnetic fields: Characterisation for the Australian MRI-linac. Natalia Roberts

QA20 Evaluating the Octavius 4D MR System. Edmund Goodwin

QA21 The effect of rotation and tilt on the response of the Exradin A28MR ionization chamber in a transverse magnetic field of 0.35T. Bhargesh Kandarp Shukla

 

Clinical Oral

OC1 Clinical experience from MRI-only radiotherapy – pearls and pitfalls, Persson

OC2 A two-year clinical experience with MR-only planning for prostate, Tyagi

OC3 Assessment of inter- and intrafraction displacement of individual axillary lymph nodes on MRI, Groot-Koerkamp

OC4 MR-guided high-dose-rate (HDR) brachytherapy or integrated volumetric arc therapy (VMAT) for intraprostatic dose escalation in localized prostate cancer, Chung

OC5 Focal treatment of locally recurrent prostate cancer with MRI-guided salvage high-dose-rate brachytherapy, van Son

OC6 Impact of repeated MR imaging for cervical cancer patients inside a combined brachy HDR and MRI treatment theatre, de Leeuw

OC7 Cine-MR based intra-fraction motion assessment for MR-Linac treatment of prostate cancer, de Muinck Keizer

OC8 Can pre brachytherapy MRI and deformable registration replace the MRI with applicator in place?  Craciunescu

OC9 Comparison of metabolic abnormality extension from MR spectroscopy with clinical target volume in glioma patients, Raschke

OC10 Treatment response prediction using texture features from longitudinal diffusion MRI in sarcoma patients, Gao

OC11 Can conventional MRI predict survival in pediatric ependymoma patients? Tensaouti

OC12 Radiologic response on MRI and pathologic response after MR-guided single dose preoperative radiotherapy in breast cancer patients, Vasmel

OC13 Prostate tumor prediction model for automated delineation QA on multiparametric MRI, van Schie

OC14 Baseline dynamic R2* MRI in rectal cancer is associated with chemoradiotherapy outcome, Roe Redalen

OC15 Clinical outcome after MRI guided (chemo-)radiotherapy for advanced cervical cancer; a single center experience, Jurgenliemk-Schulz

OC16 Variability in Expert Delineation of Targets and Organs-at-Risk in Gliomas for CT-MRI and MRI-only workflows, Tseng

OC17 MR-based target definition for laryngeal cancer; The overall results of 8 years of research at the UMC Utrecht, Raaijmakers

 

Clinical Posters

C1 Diffusion-weighted magnetic resonance imaging during brachytherapy of locally advanced cervical cancer: preliminary results. Chiara Tenconi

C2 Evaluation of bulk-density pseudo-CT for MR-only treatment planning of MRI-guided accelerated partial breast irradiation. Maureen Groot Koerkamp

C3 Radiologist led training and its effect on inter-observer variation in OAR and GTV delineation in MRI of lung cancer patients. Sean Brown

C4 MR, CT and Cone-Beam CT for metastatic lymph node visualisation in lung cancer patients. Michael Dubec

C5 MRI-based urethra assessment and delineation for MR-only external beam treatment planning. Neelam Tyagi

C6 A comparison of cone beam CT and different MR sequences for use in image guided radiotherapy  for cervical cancer. Anthea Cree

C7 Longitudinal effects of radiation therapy on white matter structures, as measured by diffusion MRI. Victor Andrei Bodiut

C8 Motion variability in 4D lung treatments for PBS proton therapy using 4DCT(MRI). Miriam Krieger

C9 Understanding the Canadian landscape to guide practice change: MRI in radiation therapy. Mikki Campbell

C10 Advanced Radiotherapy Technologies Network In The UK (ART-NET) – A focus on lung cancer. Brown, Sean

C11 Changes in MRI-derived Prostate Cancer Diffusion Parameters during and after Hypofractionated SBRT. Kristen Zakian

C12 Repeatability of T2 and ADC mapping on the MR-Linac in prostate cancer patients. Ernst Kooreman

C13 Lung tumor delineation and motion assessment using T2w respiratory-correlated 4DMRI. Guang Li

C14 Interobserver GTV delineation variation on MRI versus PET-CT in oesophageal cancer. Sophie Vollenbrock

C15 MRI guided radiotherapy of centrally located thoracic tumors: effect of cardiac motion. Yingli Yang

C16 Target volume delineation of  laryngeal cancer using diffusion-weighted MRI validated by pathology: a case series. Hans Ligtenberg

C17 A systematic review of organ motion management techniques for CT/MRI simulation for lung and abdominal radiotherapy. Richard Speight

C18 Automatic Contour Propagation of Organs-at-Risk on Serial MRIs and Dosimetric Implications in Glioblastoma Patients Undergoing Chemo-Radiation. Chia-Lin Tseng

C19 Case Study – Utility of cardiac MRI mapping in the quantification of myocardial toxicity following concurrent chemoradiation for oesophageal Carcinoma. Simon Tang

C20 Experiences of MR simulation as an enabler for Liver SABR. Richard Speight

C21 Morphological analyses of post-treatment changes in cortical thickness in a brain tumour patient. Steven Nagtegaal

C22 Multiparametric magnetic resonance imaging for the detection and localisation of prostate cancer. Neda Gholizadeh

C23 Investigating the impact of training on delineation variability with two MR sequences for prostate radiotherapy. Jonathan Wyatt

C24 Superior target delineation for stereotactic body radiotherapy of bone metastases from renal cell carcinoma on MRI compared to CT. Linda Kerkmeijer

 

MRI oral

OMR1 Robust quantitative diffusion weighted MR on an MR-Linac system. Schakel

OMR2 Ultra fast image reconstruction for real-time MRI-guided radiotherapy by removing undersampling artefacts using deep learning. Blokker

OMR3 Feasibility of alternating repetition time balanced steady state free precession MRI on an MR-linac. Gurney-Champion

OMR4 Optimizing acquisition speed and contrast of respiratory correlated 4D-MRI on the 1.5T Unity MRI-linac. Stemkens

OMR5 Imaging performance of a dedicated radiation transparent RF coil on a 1.0 Tesla inline MRI-Linac. Liney

OMR6 Accelerating 3D head-and-neck MR imaging using convolutional neural network for MR-guided radiotherapy. Zhou

OMR7 Hybrid UTE/Dixon Acquisition for synthetic CT generation. Wetscherek

OMR8 Multi-Resolution radial MRI to Reduce IDLE time in pre-beam imaging on an MR-Linac (MR-RIDDLE). Bruijnen

 

MRI Posters

MR1 Lung tumor delineation and motion assessment using T2w respiratory-correlated 4DMRI. Guang Li

MR2 Image quality enhancement of super-resolution time-resolved 4DMRI by two-step hybrid deformable image registration. Guang Li

MR3 Implementation of a software framework for automated offline MR image reconstructions. Tim Schakel

MR4 Production of Beam’s Eye View MR images for RT-MRI hybrids via specially-designed gradient hardware. Keith Wachowicz

MR5 feasibility of BLADE-DWI for head and neck radiation treatment planning: phantom and volunteer studies. Yao, Ding

MR6 A custom-designed flexible MR coil for spine radiotherapy treatment planning. Neelam Tyagi

MR7 Coil-replacement shimming reduce inhomogeneity-induced artifacts in sodium imaging. Fróði Gregersen

MR8 Assessment of pelvic imaging for a static inline MRI-Linac. Jarryd, Buckley

MR9 Minimal processing pipeline of diffusion MRI data in brain cancer patients. Szabolcs David

MR10 4D-T2w MRI on an MR-linac. Joshua Freedman

MR11 Zero TE based pseudo CT conversion for Head and Neck: from feasibility to a Radiation Therapy workflow-friendly solution. Cristina Cozzini

MR12 Radiologically Transparent RF Coils for Parallel-field Linac-MR. Radim, Barta

MR13 MR-based pseudo CT conversion for Radiation therapy planning in pelvis using sero TE and lava flex. Cozzini

 

MRgRT Oral

OMgRT1 How would you plan for precise dose-painting of involved lymph nodes? Beijst

OMgRT2 Integrating a low-field open MR scanner with a static proton therapy research beamline: proof of concept. Schellhammer

OMgRT3 Implementation of a 4D MRI workflow for abdominal radiotherapy treatment planning. Rai

OMgRT4 Gastrointestinal 4D MRI with respiratory motion correction. Johansson

OMgRT5 Detection and characterisation of prostate cancer from multiparametric MRI using machine learning techniques for bio-focused radiotherapy. Sun

OMgRT6 Application of a deep convolutional neural network to segment the parotid glands on MR images. Kieselmann

OMgRT7 MR-only brain radiotherapy: Feasibility of  dose calculation on synthetic CTs generated by a CycleGAN trained with unpaired data. Dinkla

OMgRT8 Development of a method to assess on-set treatment 3D positional verification for MR-only pathways. Tyyger

OMgRT9 Characterizing MRI-guided tracking using the Elekta 1.5T MRI-linac system. Glitzner

OMgRT10 Tumour trailing on the MR-Linac: a first experimental proof-of-principle demonstration. Fast

OMgRT11 Motion model and super-resolution reconstruction from multi-slice MR image data using an MR-derived surrogate. Eiben

OMgRT12 Towards fast adaptive VMAT sequencing for the MRI-linac. Kontaxis

OMgRT13 Integrating a low-field open MR scanner with a static proton therapy research beamline: Characterisation of in-beam imaging performance. Gantz

OMgRT14 Towards real-time MR-guided high-dose-rate brachytherapy. Beld

OMgRT15 Tumor probability model for focal salvage strategies in recurrent prostate cancer patients after radiotherapy. Fernandes

 

MRgRT Posters

MgRT1 Evaluation of novel method for automatic generation of synthetic-CT images. Brige, Chugh

MgRT2 Evaluation of surrogate signals derived from MR images to build respiratory motion models. Elena Tran

MgRT3 Experimental validation of magnetic field deflections of proton beams  for online MR-guided PT. Gabriel, Marmitt

MgRT4 Non-rigid CT to MR registration for online external beam radiotherapy guidance. Cornel Zachiu

MgRT5 Towards Real-Time PBS dose accumulation observation using dynamic MRI. Damien Dasnoy

MgRT6 R-IDEAL 0 simulation study:  Investigation of the potential dosimetric benefits of treating lymph node oligometastases on the 1.5T MR-linac. Dennis, Winkel

MgRT7 4DMRI-based 4D dose calculation for MR-guided proton therapy of pancreatic cancer. Kai Dolde

MgRT8 Assessment of the stability of radiomic features in rectal cancer using test-retest MRI. Robba Rai

MgRT9 MRI-only based radiation therapy – HIP prostheses are not an exclusion criterion for prostate cancer patients using MRI-only radiotherapy. Lauri, Koivula

MgRT10 Dose escalation in head and neck cancer using high-field MRI-linac techniques. Marcel, Nachbar

MgRT11 Feasibility of MRI-only photon and proton dose calculations for abdominal pediatric patients. Filipa Guerreiro

MgRT12 Dosimetric commissioning of the Australian MRI-Linac. Urszula Jelen

MgRT13 Multimodality assessment of gold fiducial marker inter-distance measurements for prostate patients in an MRI-only based radiotherapy workflow. Christian Gustafsson

MgRT14 Quantifying the dosimetric effects of arm position and structure-avoidance for liver SBRT on the MR-linac. Wouter van den Wollenberg

MgRT15 Feasibility of fast synthetic CT generation with deep learning for MR-guided Radiotherapy of prostate cancer patients. Matteo Maspero

MgRT16 Effects of time-varying magnetic fields from the MRI’s gradient coils on a proton beam. Dan Michael Santos

MgRT17 Evaluation of MR-guided motion management on a prototype inline MRI-Linac. Bin Dong

MgRT18 Feasibility of whole brain voxelwise statistical analysis of longitudinal diffusion tensor imaging of single subject: quantitative comparisons of three non-parametric, data-driven methods. Tong Zhu

MgRT19 Dosimetric feasibility of on-body receive array placement to enhance image quality in the MR-linac. Stefan Zijlema

MgRT20 Expanding the horizon of MriPlanner to new anatomical regions; the female pelvis. Rickard Cronholm

MgRT21 The impact of 2D cine MR imaging parameters on automated localization of abdominal organs. Martin Menten

MgRT22 Detecting abrupt patient motion using the noise navigator on an MR-linac system. Robin Navest

MgRT23 Online prostate plan adaptation for simulated volume changes on the 1.5T MR-Linac. Robert Chuter

MgRT24 Head and Neck Synthetic MR Only protocol (HAN-SOLO). Laura O’Connor

MgRT25 Multi-Fractional Planning Study for Lung Cancer Treatment: Impact of Magnetic Fields and Treatment Procedures. Oliver, Schrenk

MgRT26 Bulk-density assignment recommendations for MR-linac adaptive planning. Alex Dunlop

MgRT27 Theragnostic imaging using DW-MRI and isotoxic dose escalation for muscle-invasive bladder cancer. Jane Rogers