Jump to Main Contents
ncc en

HOME > Publication & Reports > Annual Report 2016 > Hospital East

Department of Radiological Technology

Yoshihisa Muramatsu, Mitsuhiro Yoshida, Shoichi Katsuta, Kazuyoshi Yamano, Kazutoshi Yokoyama, Koichi Nemoto, Takaki Ariji, Masashi Iseya, Kuniji Naoi, Naotaka Yamazawa, Satoe Kito, Hiroyuki Ohta, Tsunemichi Akita, Sachie Ishikawa, Hajime Ohyoshi, Kaoru Ikeno, Keiichi Nomura, Hiroyuki Shitara, Daiki Kumagai, Fuminori Shimizu, Shogo Amano, Asami Tanaka, Ryuzo Uehara, Keiji Yoshihara, Shota Hosokawa, Kaori Yanagisawa, Syun Aoyagi, Yukihiro Matsukawa, Yuto Iwabuchi, Yuki Tanaka, Toshiyuki Shibuya, Kazuto Kano, Hikaru Sugahara, Hiroyuki Asai, Fumiya Tanaka, Toshiya Rachi, Daiki Kanke, Taku Tochinai, Yohei Takeda, Makoto Gohdo, Tomohiro Ohishi, Hiroshi Tsuruoka, Kazuya Mizuguchi, Moeka Funakoshi, Hikari Inagawa, Mayu Wakabayashi, Akiho Noda, Hirokazu Kobayashi

Routine activities and research activities

Subsequent to the previous year, the number of radiographic examinations and radiation therapies in 2016 increased as shown in Table 1. Due to the increase in the number of clinical trials, the number of computed tomography (CT) examinations also increased. The number of PET-CT examinations was affected by the period of machine renewal and accompanying GMP conversion. For proton beam therapy, the nation-wide protocol and clinical trials under "advanced medical care B" were executed. Also, radiation therapy section offered high quality radiotherapy like intensity-modulated radiotherapy or stereotactic body radiotherapy.

In addition to those activities, the number of emergency MRIs and hemostasis has increased, and the system was improved so that it can respond smoothly even in off hours. Also, in order to alleviate anxiety of radiotherapy, we worked on personnel assignments carried out by the same radiological technologist (RT) during the treatment period, such as CT examinations, planning, and irradiation. In proton beam therapy, a team system for pediatric treatment and a dedicated waiting room were installed.

Table 1. Transition of number of radiological examination and radiation therapy by year.

Table 1. Transition of number of radiological examination and radiation therapy by year.
Table 1. Transition of number of radiological examination and radiation therapy by year. (Full Size)

Research findings

Acquired (cancer promotion foundation) for overseas trainees, participated in quality control training for MRI equipment held at Toshiba America Medical Systems. Established a dose simulation environment for Angio examination as a collaborative research with the manufacturer (CH 27707). As a characteristic evaluation of CAD software, the detection rate for simulated nodules reflecting spatial resolution was evaluated. We also examined the relationship between new dose index for CT (SSDE) and detectability based on the chest slice position. In proton beam therapy, the whole brain full spinal irradiation requiring a wide irradiation range, which is considered useful in pediatric treatment, has been put to practical use. The results were published in papers, domestic and overseas academic societies, etc. SSDE verification was awarded with the Certificate of Merit at the Radiological Society of North America.

Education

Participated in academic conventions and workshops organized by various academic societies and organizations, with the number totaled to 19 times. In the certification qualification, four staff members applied or renewed, and a total of 18 types and 65 people are qualified.

As graduate students, one of the RTs studied on a master's course and three studied on graduate school doctoral courses. Also, we accepted a total of 11 trainees from four different universities of the radiological training and provided practical training.

Faculty Development (FD) training by multi- occupation was started as a cross-cutting educational program of Tsukiji - Kashiwa campuses, and five RTs took part. This training was positioned as a practical training for team medicine.

Future prospects

In the diagnosis field, operation of the "NEXT building" will be started in May 2017. While the number of portable imaging and non-vascular IVR is expected to increase, it is also expected to utilize the skill and idea of the RT for new applications of radiation images. In the treatment field, we will further enhance the high-precision radiotherapy, promote team medicine by multi-occupational occupation, and try to improve the environment so that radiation therapy can be received more reliably. Also, technical support will be given to expand the adaptation of line scanning in proton therapy.

List of papers published in 2016

Journal

1.Takei Y, Miyazaki O, Matsubara K, Shimada Y, Muramatsu Y, Akahane K, Fujii K, Suzuki S, Koshida K. Nationwide survey of radiation exposure during pediatric computed tomography examinations and proposal of age-based diagnostic reference levels for Japan. Pediatr Radiol, 46:280-285, 2016

2.Inoue K, Tsuruoka H, Le Van T, Fukushi M. Contribution ratios of natural radionuclides to ambient dose rate in air after the Fukushima Daiichi Nuclear Power Plant accident. J Radioanal Nucl Chem, 307:507-512, 2016

Book

1.Maedera F, Inoue K, Sugino M, Sano R, Furue M, Shimizu H, Tsuruoka H, Le Van T, Fukushi M. Natural variation of ambient dose rate in the air of Izu-Oshima Island after the Fukushima Daiichi Nuclear Power Plant accident. In: Radiat Prot Dosimetry, pp 561-565, 2016