CE Accreditation Statement
This webinar is approved for 1 Category A Continuing Education Credit by ASRT, 1 CPE Point for Singapore Society of Radiographers & 1 CPD Credit for Hong Kong Radiographers Board. (additional CE’s coming soon!)
This webinar explores the 14-year journey of integrating the TomoTherapy® System into clinical workflows. From the first Hi-Art system in Thailand in 2012 to the Radixact® X9 System with kVCT and real-time tracking. It highlights the progression from basic to advanced techniques (e.g., CSI, head & neck, pelvis, breast, brain/SRS, lung, prostate, ART, TSI/TBI), key clinical/technical challenges, and practical solutions to optimize treatment planning, delivery, imaging, and quality assurance.
Three Key Learning Objectives:
1. Trace the Technological Evolution: Understand the transition from the early TomoTherapy System
to the latest Radixact System, including the integration of kVCT imaging and tracking
technologies.
2. Describe stepwise implementation strategies for introducing TomoTherapy workflows from
basic to advanced clinical indications (CSI, H&N, pelvis, breast, brain/SRS, lung, TSI/TBI, ART).
3. Explain technology evolution and its impact on efficiency and safety, including
improvements in imaging time (MVCT to kVCT), beam-on time, treatment planning speed
(VOLO™ Ultra), delivery verification, and adaptive radiotherapy (PreciseART®).
Presenter: Wannapha Nobnop, Ph.D.
Assistant Professor Division of Radiation Oncology, Department of Radiology, Faculty of Medicine, Chiang Mai University
Chiang Mai University Hospital, Chiang Mai, Thailand
Asst. Prof. Dr. Wannapha Nobnop is a medical physicist at the Division of Radiation Oncology, Department of Radiology, Faculty of Medicine, Chiang Mai University, Thailand, and Director of the Master of Science Program in Medical Physics, Chiang Mai University. Research expertise centers on the clinical implementation of advanced radiotherapy, with a strong emphasis on helical TomoTherapy technologies to improve treatment accuracy, patient safety, and clinical efficiency.
Key areas include TomoTherapy treatment planning optimization and dosimetric evaluation, particularly for breast cancer radiotherapy, focusing on plan efficiency improvement, dose spillage control, and motion-related skin dose assessment. Additional expertise covers adaptive radiotherapy (ART) for head and neck cancer, especially nasopharyngeal carcinoma, including daily dose recalculation, dose accumulation, and deformable image registration, supported by TomoTherapy imaging workflows.
Research also contributes to IGRT dose calculation accuracy by comparing CBCT, MVCT, and kVCT modalities, and supports development of comprehensive radiotherapy quality assurance (QA) systems, including workflow digitalization, incident reporting, and delivery QA tolerance/action limits aligned with international recommendations. Service includes membership on the Editorial Board / Physics Advisory Editors of Medical Dosimetry (Elsevier B.V.) and affiliation with the American Association of Medical Dosimetrists (AAMD).
Moderator: Lee C. Goddard, Ph.D.
Assistant Professor, Department of Radiation Oncology at Montefiore Medical Center and Albert Einstein College of Medicine
Montefiore Medical Center, Bronx, New York City, USA
Dr. Goddard has deep expertise in TomoTherapy and the Radixact platform, with over a decade of experience advancing high-precision, image-guided radiotherapy and optimizing helical treatment delivery.