Healthcare professionals
Elekta – supporting customer choice of IMRT workflow
Medical Physicist: Friedlieb Lorenz, Cornelia Walter, Hansjörg Wertz, Martin Polednik, Dirk Wolff, Frank Schneider and Volker Steil
Radiation Oncologists: Frank Lohr, Angelika Rahn, Sabine Mai, Judit Boda-Heggemann, Frederik Wenz Head Radiotherapist: Beate Küpper
On-line interventional IGRT using Elekta Synergy®
Consultant in Department of Clinical Oncology: Dr Tung
Segmentation of filmless and paperless workflow
Contributors
Radiation Oncologists: Prof. Dr. med Frank Lohr and Prof. Dr. Frederik Wenz
Medical Physicist: Dipl-Phys. Volker Steil
Chief Technologist: Beate Küpper
Daily patient dose from kilovoltage cone beam CT: a comparison between Elekta Synergy® XVI and Varian OBI
Purpose: To make a comprehensive set of absolute dose measurements from Elekta Synergy® XVI X-ray volumetric imager and the Varian OBI® on-board imager on cylindrical phantoms using a calibrated ion chamber.
Authors: W Song, S Ozawa, S Alani, C Liu, A Chvetsov, N Bhandare, J Palta, J Li
3D VolumeViewTM imaging with spine fusion
Purpose: To determine the residual error for cone beam (CB) CT to planning CT fusion for patients treated for spinal metastases. To determine if adaptive planning could improve the treatment delivery
accuracy for this population of patients.
Authors: A Harrison, G Bednarz, J Galvin
Quantification of anatomic positional variation and movement over the course of external beam radiation
Intensity modulated radiation therapy (IMRT) in the treatment of head-and-neck cancers has the
ability to minimize dose to normal structures. The highly conformal nature of IMRT places an
increased importance on knowledge of anatomical displacement over the course of treatment.
This is the preliminary analysis of a prospective study analyzing the degree of anatomic
displacement during a course of head-and-neck radiotherapy.
Authors: Departments of Radiation Oncology, Jefferson Medical College, Thomas Jefferson University, Andrew Cupino M.D. Gregory Kubicek M.D. Robert Den M.D. Anthony Doemer MS, Greg Bednarz PhD Ying Xiao PhD, Amy Harrison MS, James Galvin PhD, Mitchell Machtay M.D.
Reproducibility of liver position using Active Breathing Coordinator™ for liver cancer
To measure the intra-breath hold liver motion and the intrafraction reproducibility of liver position, relative to vertebral bodies, using Active Breathing Coordinator™ in patients with unresectable liver
cancer treated with hypofractionated stereotactic body radiation therapy (SBRT).
The purpose of this paper is to describe the reproducibility of liver position using Active Breathing Coordinator in a larger series of patients with more advanced liver cancer, consecutively planned for SBRT delivered in six fractions over two weeks. In this study, repeat megavoltage (MV) verification imaging, real-time beams-eye-view MV movies, conventional kV fluoroscopy, cone beam kV fluoroscopy and deformable registration of repeat CT scans in the breath hold position are used to measure liver stability during active breathing coordination and intrafraction reproducibility of the liver position relative to the vertebral bodies.
Radiographer: C. Eccles, MRT(T).
Physicists: J.P. Bissonette, PhD., K. Brock, PhD.
Oncologists: L.A. Dawson, MD., M. Hawkins, MD.
Re-treatment of a paravertebral tumor using Elekta Synergy®
Radiation Oncologists: Judit Boda-Heggemann MD. PhD, Angelika Rahn, MD., Frank Lohr, MD, Frederik Wenz MD.
Medical Physicist: Cornelia Walter, Frank Schneider
Paediatrics: Barbara Selle, MD, Anaesthetist: Franz-J. Andres, MD
Dose escalation in treatment of a paraspinal tumor using Elekta Synergy® S
Director: Dr. Michael Flentje
Radiation Oncologist: PD Dr. Dirk Vordermark, Dr. Matthias Guckenberger
Medical Physicist: Dr. Jürgen Wilbert, Dr. Jürgen Meyer, Kurt Baier, Anne Richter, Dr. Otto A. Sauer, Dr. Klaus Bratengeier
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