I. Radiological Diagnosis

Tomohiko Aso, Kanyu Ihara, Yuzuru Kono, Akira Inagaki, Noriko Nishikawa, Naoya Ikeno, Hirobumi Nagasawa, Jun Takita, Chieko Nagashima, Takatsugu Magara, Toshimitsu Utsuno, Hideaki Kitamura, Mayumi Kitagawa, Akiko Nagoshi, Takeshi Murano, Junko Sonehara, Naoki Shimada, Kenta Hiroi, Jun Torii, Mari Sakaguchi, Yusuke Miyamoto, Yuji Jibiki, Tatsuya Horita, Yuya Kanai, Manabu Kimura, Kenta Hashimoto, Ryo Kawana, Yusuke Wakatsuki, Yuhei Shimizu, Syuhei Kamikaji, Seiya Sato, Akira Yoshida, Takaaki Kitamura, Minami Nakahara, Chihiro Muto, Hiroki Miyazaki, Masae Fujisawa, Syouta Kuribayashi, Satoru Kanzawa, Yoshiyasu Mihara, Eiko Taguhci, Nao Ozaki, Aika Ozaki, Midori Nagata, Yumi Saito, Masahiro Suzuki, Wataru Oouchi, Kazumi Watanabe

Introduction

This department has a wide range of radiological modalities, namely, interventional radiology (IVR), general X-ray, computed tomography (CT), magnetic resonance imaging (MRI), mammography, and nuclear medicine (NM). Serving as a teaching hospital, we put a considerable effort into education. We accept students, visitors, and trainees around the world. We also attend the academic congress of the world.

Our team and what we do

1.General X-ray

We anticipate business expansion and increase in income with the equipment upgrades. We flexibly responded to breast tomosynthesis clinical orders. Utilizing intraoperative specimen radiographic devices, we contributed to the improvement of the surgical efficiency.

2.Computed Tomography (CT)

We started the operation of low tube voltage CT imaging for the purpose of reducing the burden on patients with impaired renal function. We introduced Japan's first injector experimentally and announced its economic advantages.

3.Magnetic Resonance Imaging (MRI)

We provided technological aid to the Nuclear Medicine section which resulted in smooth operation of PET-MRI.

4.Interventional Radiology (IVR)

We accepted trainees from abroad and provided them technical advice. Also, we reported incomplete billing contributing to hospital management.

5.Fluoroscopy

We accepted and trained many CT colonography (CTC) trainees. In order to improve medical safety, we made it a rule to perform examinations and treatments with the attendance of a radiological technologist.

6.Endoscopy

Collaborative research on 3D mapping using fluoroscopy with a high image quality function loaded device is in progress.

7.Nuclear Medicine (NM)

We started radiation therapy (Zofigo) and Octreoscan for the diagnosis of neuroendocrine tumor. We also started explanation to the first PET examinees for medical safety and reducing doctor's burden.

Research activities

The MRI sequence of the PET-MRI was brushed up for the smooth work-flow.

"Ultra-High Resolution CT" has been in the market after joining research with Toshiba Medical Systems.

Education

1) The utilization of effecting rotation and education system enabled this department to run very well.

2) We held various kinds of workshops organized by the Ministry of Health, Labour and Welfare, National Hospital Organization, etc. We also participated in training sessions hosted by various certification organizations, and for technical acquisitions. We also actively participated in in-hospital conferences hosted by the clinical department to enhance knowledge and improve skills.

3) Personnel exchange program between The University of Tokyo Hospital and Kyoto University Hospital.

4) We accepted many students and trainees from all over the world.

5) We actively participated in many academic conferences of the world.

6) We regularly held meetings within this department to improve our knowledge.

Future prospect

1) We plan to increase revenue by efficiently operating tomosynthesis and dental cone-beam CT.

2) We plan to improve patient service by utilizing the amenity introduced in the X-ray general.

3) We will increase collaborative research and contribute to medical device development.

4) We will establish the clinical application of "Ultra high resolution CT".

II. Radiological Oncology

Yoshihisa Abe, Tooru Kato, Ako Aikawa, Masashi Ito, Minoru Hamada, Yoshihiro Shibata, Yuya Suzuki, Tatsuya Sakasai, Emi Sakamoto, Toshiyoshi Katahira, Satoshi Nakajima, Yuuki Miura, Daisuke Fujiyama, Gyoko To, Yuto Tanaka, Takuya Nakagawa, Rie Ishikawa, Junichi Kuwahara, Yuta Saito, Shuto Amanuma

Our team and what we do

1)We designed deliberate strategies based on the analysis of TrueBeam (LINAC) and the CyberKnife System's workflows to pursue high-precision radiotherapy as one existing system.

2)An old LINAC was removed in August 2016, since then immediate adaptive radiotherapy system (MRIdian system) has been updated.

3) Thirty-six Total Body Irradiation (TBI) for bone marrow transplantations were performed by an alternative LINAC.

4)CyberKnife had twenty-two new patients and three patients referred from other institutions per month. Stereotactic Body Radiation Therapy (SBRT) with Synchrony Respiratory Tracking System was stably operated.

5)MRIdian system was installed for the first time in Japan, and the required legal inspections were completed. Currently, commissioning is in progress preparing for clinical treatment.

Research activities

1)We succeeded following two items in the accelerator type Boron Neutron Capture Therapy (BNCT) system.

The neutron flux measuring method was established. The neutron flux, and the profile of proton beam at 60% power level was measured.

2) In collaboration with the National Cancer Center Research Institutes (NCCRI), the interaction between boron drug and neutron at cancer cell level was observed in BNCT.

Education

1) Our department systematically rotated the staff and educated them effectively using our education program.

2) Our department accepted many visitors and trainees from all around Japan.

3) Our department accepted students from the Department of Radiological Sciences, Graduate School of International University of Health and Welfare, and Yuanpei University in Taiwan.

4) The "Comprehensive Radiotherapy Training" program has been repeated, reviewed, and improved.

Future prospects

1) The BNCT system aims for early clinical investigation and pharmaceutical approval.

2) The MRIdian system aims for establishing quality control method, verification of dosimetry in magnetic field, and contributing to the dissemination of safe radiation therapy.

3)The MRIdian system aims to establish standard workflow, and safe operation methods.

4)Eight to ten years have passed since installing three LINACs, and it is required to replace them. In order to respond to social needs, our department must plan to replace systems considering features such as high precision and adaptive radiation therapy.