Helical TomoTherapy®: More Than Modulated Arc Therapy
Date: Originally broadcast on November 7, 2012
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Helical TomoTherapy® was developed as a novel way to deliver rotational IMRT to achieve a highly conformal dose distribution for treatment volumes of any size and shape. Furthermore, basing the system on a design resembling a CT scanner rather than a conventional linear accelerator allowed efficient, high quality CT-based image guidance to be part of daily clinical workflow. Other manufacturers have since realized the benefits of rotational IMRT and CT image guidance, but have had to contend with the limitations of designs conceived in the early days of radiation oncology when simple static-beam treatments were the norm.
This presentation will highlight the design elements of a Helical TomoTherapy system, important clinical examples as well as key differences between Helical TomoTherapy and conventional linear accelerator-based treatment delivery. Recent enhancements to the TomoTherapy® Treatment System also will be discussed.
Thomas Rockwell "Rock" Mackie, PhD
Dr. Mackie was a founder of Geometrics Corporation (now owned by Philips Medical Systems) which developed the Pinnacle treatment planning system which still operates its R&D facility in Madison, WI. He is also co-founder and co-inventor of TomoTherapy, Incorporated an international company employing over 700 people based out of Madison, WI, USA. TomoTherapy, Inc. was purchased by Accuray Incorporated of Sunnyvale, California June 13, 2011.
Currently, Rock is Director of Medical Devices at the Morgridge Institute for Research. The focus of this area is to explore and build medical devices with the potential to treat or cure medical conditions in patients and to improve the movement of new devices from research lab to clinical use. This area will be the most closely integrated with UW-Madison and in many ways its translational emphasis has been modeled on the successful Coulter Foundation Program at the university's department of biomedical engineering. Dr. Mackie's plans include a facility for rapid prototyping and the launch of a medical devices consortium through partnerships with companies and academia.
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