2019.4.11～14: The 117th Scientific Meeting of the Japan Society of Medical Physics

The 117th Scientific Meeting of the Japan Society of Medical Physics has been held in PACIFIC Yokohama, Japan. Mr.Tanaka (M2), Mr.Nemoto (M2) and Mr.Takagi (M2, Department of Therapeutic Radiology) have attended it for oral presentation.

■Date：　April 11-14, 2019
■Venue：　PACIFICO Yokohama, Yokohama, Japan
■Conference name：The 117th Scientific Meeting of the Japan Society of Medical Physics

Hikaru Nemoto(M2)

We are pleased to report that Mr.Tanaka(M2) and Mr.Nemoto(M2)in the Department of Radiation Oncology, and Mr.Takagi(M2) in the Department of Radiation Therapy, gave oral presentations at the 117th Annual Meeting of the Japanese Society of Medical Physics.

This conference was held under the theme of “Innovative Radiation Medicine – Leaning Toward the Patient” at the 78th Annual Meeting of the Japan Radiological Society (JRS), the 75th Annual Meeting of the Japanese Society of Radiological Technology (JSRT), the 117th Annual Meeting of the Japanese Society of Medical Physics (JSMP), and the 2019 International Technical Exhibition of Medical Imaging (JIRA) were jointly held.

At JSMP, I presented “Are 4D-CBCT ventilation-based VMAT treatment plans comparable to 4D-CT ventilation-based VMAT treatment methods? The lungs, which play a major role in radiotherapy, are the most important part of the patient’s body, and the lungs are the most important part of the patient’s body. Radiotherapy plays an important role in the lungs, and irradiation methods have been developed to preserve the patient’s functional lungs and to reduce radiation-induced lung inflammation. One such irradiation method is the 4D-CT ventilation-based radiotherapy that takes lung function into consideration, and its effectiveness has already been reported. In this study, we attempted to develop a more accurate lung function-based radiotherapy method that takes into account changes in lung function over time during the treatment period, using 4D-CBCT taken at each treatment session. In the present analysis, the potential of 4D-CBCT ventilation using a dynamic lung phantom was demonstrated in terms of image concordance and treatment planning. However, I felt that further analysis, such as using actual patient data, is necessary because the results of this study may differ depending on the location of the tumor and the high-functioning lung and the method of optimizing IMRT.

In addition, my oral presentation and second-year master’s student Tanaka’s oral presentation, “Prognostic analysis of lung cancer patients on CT images: a new challenge by homology” (English: “Homology as novel radiomic features for prediction of the prognosis of lung cancer cancer based on CT-based radiomics”) received the JSMP CyPos Gold Award and Silver Award, respectively. We would like to express our deepest gratitude to all of our supporters and mentors. Thank you very much.

Finally, I gained valuable experience and knowledge for my future research and conference presentations at JSMP. I would like to take this opportunity to thank everyone who gave me this valuable opportunity. Thank you very much.

Performance by the JRC2019 Festival Orchestra at the Closing Ceremony

CyPos Award :Gold Award(Mr.Nemoto）

CyPos Award :Gold Award(Mr.Tanaka）