Svenja Ipsen - Universität zu Lübeck - 2013/2014 and 2016
Svenja Ipsen is a PhD student at the Institute for Robotics and Cognitive Systems at the University of Luebeck in Northern Germany. She completed her Master's degree in Biomedical Engineering in early 2015 with an interest in novel real-time imaging and treatment techniques into radiation therapy. She joined the Radiation Physics Lab group in 2013 and received an Endeavour Award Research Fellowship to initiate a project on MRI-guided cardiac radiosurgery, a new potential treatment branch of the Australian MRI-Linac program beyond the realms of cancer therapy to treat cardiac arrhythmia. This novel approach offers challenges in dose calculations, modelling and real-time motion compensation and will be the subject of ongoing research. Moving on from MRI, she is now investigating the potential of real-time ultrasound guidance in radiotherapy. Combining the outstanding motion compensation experience of Paul Keall's group with the promising real-time target localization capabilities of ultrasound will be an essential part of future collaborations between Sydney and Lübeck. Svenja has been on numerous travel adventures around Australia and New Zealand, enjoys hiking and eating Australian mangoes and is a strong advocate of using umlauts (hööräy)!
Francesca Ludicello Masters student at Politecnico di Milano
Francesca Ludicello is 24 years old and comes from a small town near Milan called Mantova. She studied biomedical engineering for three years at "Università degli studi La Sapienza" in Rome and then moved to Milan where she’s attending the course of "Technologies for electronics" at the "Politecnico di Milano" to obtain a Master's degree. She is working on a thesis project with Silvia Albertini. The title is "Global respiratory motion models based on 4DCT and 2D cine-MRI". They started work on the project in Milan and have come to Sydney to complete the last part of the project.
Silvia Albertini, Masters student at Politecnico di Milano
Silvia Albertini is 24 years old and lives in Italy, near Milan. She attended the first three years of university at the "University of Pavia". Now she is studying at the "Politecnico di Milano", where she’s attending Bioengineering, having chosen the masters course of "Technologies for electronic". She is in Sydney to complete the second part of her thesis, with Francesca Ludicello. The title of their project is "Global respiratory motion model base on 4DCT and 2D cine-MRI".
Jakob Toftegaard, PhD student at Aarhus University Hospital
Jakob Toftegaard is a Danish PhD student at Aarhus University hospital (Supervisor: Per Poulsen). He has a bachelor and master degree in Physics also from Aarhus. In his masters project he worked with ion treatment planning. He developed a scripting frontend and graphical user interface for the heavy ion treatment planning software TRiP. He used that for two projects, one about robust planning for systematic errors and another project about LET painting of hypoxic tumors. Jakob’s PhD project is about tracking simulations. He has been programming a tracking simulator that emulates the TrueBeam MLC and couch tracking system. It is build up by modules such that different tracking systems can be emulates. However, at the moment it is only the TrueBeam system, which is experimentally validated. He has been using the simulator to explore different strategies to improve tracking eg. combining couch and MLC tracking. Jakob’s project for this visit involved improving leaf fitting for MLC tracking of IMRT plans.
A/Prof Per Poulsen, Aarhus University Hospital, Denmark - Oct - Nov 2015
Per Poulsen is a medical physicist at Aarhus University Hospital, Denmark, specializing in tumor motion management. He spent two years (2007-09) with Paul Keall's research group at Stanford University, focusing on image-based MLC tracking. Current research topics include real-time tumor motion monitoring (e.g. kilovoltage intrafraction monitoring, electromagnetic transponders, MRI), motion adaptation by MLC and couch tracking, and reconstruction of doses to moving targets.
Laura Glaubes, University Hospitals Bristol, UK - Oct - Nov 2015
Laura Glaubes is a Trainee Medical Physicist specialising in Radiotherapy Physics on the Scientist Training Program at University Hospitals Bristol NHS Foundation Trust, UK. She is currently undertaking her MSc research project on the development and validation of a Monte Carlo based model of flattening filter free beams to provide independent verification of treatment plans. Laura visited the group for six weeks to work on the MRI-Linac program, specifically assisting with the commissioning of the Linatron beam prior to installation of the magnet.
Carsten Brink MSc, Ph.D. professor in Radiation Physics at University of Southern Denmark (SDU) and Medical Physicist at Laboratory of Radiation Physics
Prof Brink is a professor in Radiation Physics and leads a team of three Masters and nine PhD students on a number of innovative research projects including novel scatter-correction for cone beam CT image reconstruction, the use of cone beam CT to study radiographic changes during lung cancer treatment and the development of CT ventilation imaging (CT-VI). In Sydney, Prof Brink worked with John Kipritidis to initiate a study of CT-VI functional dose-volume effects in the largest cohort of lung cancer radiotherapy patients to date.
Chiara Paganelli, PhD Student, Politecnico di Milano
Chiara Paganelli was born in Italy in 1987. She received her M.Sc. in Bioengineering in 2011 from Politecnico di Milano, Italy. She is currently pursuing the Ph.D. degree in Bioengineering at the Dipartimento di Elettronica, Informazione e Bioingegneria, Politecnico di Milano, under the supervision of Prof. Marco Riboldi. Her research interests include medical image analysis and processing for organ motion quantification in radiotherapy. Specifically, her PhD project is based on the validation of real time tumor tracking models based on dynamic MRI imaging. During a six-months period in Sydney (September 2014 – February 2015), she worked on the MRI-Linac program with Prof. Paul Keall, thus starting a collaboration between Politecnico di Milano and University of Sydney.
Nick Lowther, Masters Student, University of Canterbury, New Zealand
Nick Lowther from Auckland, Zealand completed his B.Sc. in physics in 2013 and has continued into the Medical Physics ACPSEM accredited M.Sc. program with the University of Canterbury, New Zealand. Nick is undertaking his thesis project in 2015 with the University of Canterbury under the supervision of Dr. Steven Marsh and will work on the MRI-Linac program with Prof. Paul Keall developing and building upon the real-time cardiac arrhythmia work conducted by previous Sydney visitor Svenja Ipsen. Nick’s research interests lay in the area of organ segmentation and tracking which will contribute positively toward the real-time cardiac motion challenges. Nick was the first visitor from the University of Canterbury, starting a collaboration with the University of Sydney. A keen traveller and passion for climate science in his down time led to a summer research projects in Antarctica.
Eric Wisotsky, M.Sc. in Physics, University of Heidelberg - Oct 2014-Jan 2015
Eric Wisotzky graduated with a M.Sc. in Physics at the University of Heidelberg, Germany in 2014. In 2012 he finished his Bachelor thesis in real time tumor tracking at the German Cancer Research Center. His study brought him to the Fraunhofer IPK Berlin, Germany, where he wrote his Master’s thesis in CT image restoration. Due to his interest in radiation physics and cancer treatment he joined the group and investigated the impact of temporal optimization for MLC tracking.
Svenja Ipsen - University of Luebeck - 2013/2014
Svenja Ipsen is currently enrolled at the University of Luebeck, Northern Germany, in the Master’s program of ‘Medical Engineering Science’. She completed her Bachelor thesis in early 2013, focussing on integrating 4D ultrasound imaging into a robotic radiotherapy system for motion compensation during treatment. Her interest in real-time imaging and tracking paved the way for finally joining the research group of Paul Keall in September 2013. During her visit she will be investigating a new potential treatment branch of the MRI-Linac beyond the realms of cancer therapy: treating cardiac arrhythmia with radiotherapy. This does not only involve challenges in dose calculations and modelling but also requires sophisticated real-time tracking methods. At the end of 2014 she returned to Germany to finish her Master's thesis. As the first ambassador of Luebeck she benefited from close collaboration and a vivid exchange of ideas within this exceptional research group - and of course many unforgettable moments in Australia.
Thomas Ravkilde - Aarhus University Hospital - Oct-Nov2013
Thomas Ravkilde is currently a Ph.D. student at Aarhus University and Aarhus University Hospital, Denmark. He completed his B.Sc. in physics and M.Sc. in astronomy at Aarhus University in collaboration with Institut d'Astrophysique Spatiale and The University of Cergy-Pontoise, France, working on computational modelling of magnetohydrodynamic shocks in star forming interstellar clouds. He then went on to work in IT for six years before returning to research. His current research is on dose delivery to moving tumours using dynamic multi-leaf collimator (DMLC) tracking. During his visit, he took initial steps for implementation of real-time dose reconstruction into prototype DMLC tracking software.
Dr Alanah Bergman - British Columbia Cancer Centre - Sept-Oct 2013
Dr Bergman is visiting the Radiation Physics Laboratory for four to six weeks as part of her special education leave from the British Columbia Cancer Centre (Vancouver, Canada). She is a senior clinical physicist with academic ties to the University of British Columbia (lectures & supervising post-graduate students). Dr Bergman is assisting with the Respiratory Motion Guided - 4D CBCT project and her goal is to deliver respiration-optimized CBCT projection acquisitions on the RNSH's TrueBeam medical linear accelerator using the unit's Research and Developer Mode. Dr Bergman is here with her family and is looking forward to her collaboration here at the University of Sydney as well as spending time exploring the rest of Australia.
Joerg Rottman, PhD - Research Fellow in Radiation Oncology, Brigham and Women's Hospital, Boston MA - May 2013
Dr. Joerg Rottmann is currently a Research Fellow at the Harvard Medical School (Brigham and Women's Hospital / Dana-Farber Cancer Institute). He completed his PhD in physics at the University of Heidelberg in conjunction with the German Cancer Research Center and the Brigham and Women's Hospital / Harvard Medical School. His current research projects focus on improving the delivery of lung SBRT by incorporating motion mitigation with a dynamic multi-leaf collimator.
Kinga Bernatowicz - Swiss Federal Institute of Technology Zürich - Jan-Mar 2013
Kinga Bernatowicz is a Ph.D. student from Swiss Federal Institute of Technology Zürich, completing her research on proton therapy image guidance at the Paul Scherrer Institute (PSI) with Dr. Knopf and Prof. Lomax. She completed a joint program of MSc. in Nuclear Engineering at Swiss Federal Universities, which concluded with the thesis improving proton delivery techniques for the foreseen liver patients’ treatment. During her three months in Sydney she will be working on 4D CT image acquisition.
Rebecca Fahrig, PhD - Stanford University – Nov-Dec 2012
Dr. Rebecca Fahrig is an associate professor in the Department of Radiology at Stanford University. She obtained a BSc in Physics (1989) and an MSc in Medical Biophysics (1992) at the University of Toronto, and a PhD from the Robarts Research Institute at the University of Western Ontario, also in Medical Biophysics (1999). Her research covers a wide range of topics in x-ray and CT physics, with an emphasis on image guidance during minimally invasive procedures. She is PI on several NIH-funded projects including 'Real-time Imaging for Transbronchial Needle Biopsy Guidance' and 'kV-MV Imaging for Metal Artifact Reduction in Radiation Therapy Treatment Planning'. Collaborators include researchers from Sydney University and the University of Erlangen-Nurnberg, and from Siemens Medical, Varian Ginzton and TripleRing Inc.
Esben Worm - Aarhus University Hospital – May 2012
Motion management in image-guided radiotherapy
Esben Worm is a medical physicist from Aarhus University Hospital, Denmark, currently working on a PhD within the area of radiotherapy. The aim of his work is to improve the geometric accuracy of the radiation dose delivered to tumors where motion during treatment presents a special challenge. His work focuses on stereotactic body radiotherapy for tumors in the liver. This includes image-based motion monitoring, motion management, reconstruction of the actual radiation dose delivered during treatment to a moving tumor, and optimization and implementation of clinical treatment strategies.
Stefan Kolling - University of Heidelberg - 2012/2013
Magnetic modeling of the MLC for the Australian MRI-Linac program
Stefan completed his undergraduate studies with a BSc. in Physics at the RWTH Aachen University, Germany, in 2010. During his time in Aachen, he worked as research assistant in the field of fluorescence-based medical diagnostics at the Fraunhofer Institute for Laser Technology. Following that, he transferred to the University of Heidelberg to undertake an MSc. in Medical Physics and worked for the German Cancer Research Centre (DKFZ) in Heidelberg. Due to his strong interest in image-guided radiation therapy, Stefan decided to join Prof. Keall's group where his masters research will contribute to the MRI-LINAC project.
Dr Tokihiro Yamamoto - Stanford University - April-May 2011
CT-based pulmonary ventilation imaging: physiologic validations toward applications in radiation oncology and beyond
Tokihiro Yamamoto, Ph.D. is currently a Postdoctoral Fellow in the Department of Radiation Oncology at Stanford University. He completed his Ph.D. through a formal education/training in medical physics in Japan. In 2007, he moved to Stanford and received a postdoctoral training under the mentorship of Paul Keall, Ph.D. for more than three years. His research interests focus on the functional imaging techniques for improving the therapeutic ratio of radiotherapy. He has authored/co-authored 19 peer-review papers to date.
Dr Yelin Suh - Stanford University - Mar-April 2011
4D IMRT Treatment Planning with Respiratory Phase-Dependent Leaf Sequences: Early Planning and Delivery Results
Dr Yelin Suh completed her PhD in Medical Physics at Virginia Commonwealth University and joined Professor Paul Keall's group as a postdoctoral scholar at Stanford University in 2009. Dr Suh’s current research projects include 4D radiotherapy treatment planning and delivery.
Dr Per Poulsen - Aarhus University - Mar 2011
Dr Per Poulsen is a medical physicist at Aarhus University Hospital, Denmark, specializing in tumor motion management. He spent two years (2007-09) with Paul Keall's research group at Stanford University, focusing on image-based DMLC tracking. Current research topics include liver tumor motion in SBRT, marker segmentation algorithms, image-based DMLC tracking, and electromagnetic-based DMLC tracking.