Jump to Main Contents
国立がん研究センター 中央病院

Home > Specialist ctrs & depts. > Department of Radiation(Diagnosis)

Department of Radiation(Diagnosis)

Tomohiko Aso, Kanyu Ihara, Yuzuru Kouno, Takamasa Hirai, Noriko Nishikawa, Naoya Ikeno, Hirobumi Nagasawa, Jun Takita, Naotoshi Atoda, Chieko Nagashima, Akira Inagaki, Hideaki Kitamura, Mayumi Kitagawa, Akiko Nagoshi, Kiyoyuki Kodama, Masahiro Suzuki, Takeshi Murano, Junko Sonehara, Naoki Shimada, Toshimitsu Utsuno, Kenta Hiroi, Jun Torii, Eiko Taguchi, Midori Nagata, Mari Sakaguchi, Yusuke Miyamoto, Takumi Iwase, Yuji Jibiki, Yuya Kanai, Nao Ozaki, Gyoko To, Yuto Tanaka, Ryo Kawana, Yusuke Wakatsuki, Yuhei Shimizu, Aika Ozaki, Seiya Sato, Akira Yoshida, Syunichi Usui, Yuto Kakuta, Hiroyuki Saegusa, Tomomi Saito, Masae Fujisawa, Syuuji Teraoka, Syouta Kuribayashi


The Department of Radiological Diagnosis has a wide range of radiological modalities, including interventional radiology (IR), general X-ray, computed tomography (CT), magnetic resonance imaging (MRI), mammography, ultrasound, and nuclear medicine (NM). This year we installed positron emission tomography (PET)-magnetic resonance imaging (MRI) to provide improved clinical information.

In order to meet increasing clinical needs, we put a considerable effort into education and training for the staff. Serving as a teaching hospital, we accept not only domestic but also oversees students, visitors, and trainees.

Routine activities

General X-ray

We have successfully reduced radiation exposure and installed real-time imaging by installing two wireless unlinked flat panel detector (FPD) systems. We provide qualified medical images, sharing patient information and the purpose of examination among the radiological technologists (RTs) before they take X-rays. The amount of mammography is also on the increase and inspection frames have been doubled, resulting in the patients' waiting time being reduced. RTs routinely take part in preoperative and pathological conferences. Ultrasonic mammography has been performed by RTs.

Computed Tomography (CT)

The number of examinations is on the increase.
We have performed a joint study with Toshiba medical systems. We gave many presentations and lectures on image quality assessment and clinical application of super high-definition CT both inside and outside Japan.
We gave some lectures to radiological technologists on the acquisition and reconstruction technique of CT for cancer patients at a skill improvement intensive seminar supported by the Ministry of Education, Culture, Sports, Science and Technology.
In the quality control (QC) activity scope, hand disinfection and glove procedures have been thoroughly installed as a measure against hospital acquired infection.

Magnetic Resonance Imaging (MRI)

The number of MRI cases amounted to over 8,500 this year. We have made a considerable effort to meet this increasing clinical demand. Since PET/ MRI was installed and started working in October, we have offered technical support to the Nuclear Medicine section.

Interventional Radiology (IR)

We made some presentations on the education program for RTs and how we should be in this department at international conferences. We had discussions with nurses and RTs from Korea and Singapore. We made a survey on incomplete medical billing in cooperation with the accounting section and fed back the results. We started making bed-side explanations to the examinee before IR, resulting in improving their understanding and consent for such procedure.


We perform various kinds of X-ray examinations including plain lung CT, CT colonography and conventional fluoroscopies. The number of plain lung CT and CT colonography (CTC) cases are on the increase. This trend owes to patient-friendly procedures especially in the case of CTC.
We accept RTs from other institutions for technical training on CTC, which contributes to disseminating and improving this technique.


The number of endoscopies is on the increase according to the increasing clinical demand. We undertook joint research on improving 2D and 3D fluorography.

Nuclear Medicine

PET-MRI has been installed and the clinical significance of PET has been disseminated. New single photon emission computed tomography (SPECT) examination “somatostatin receptor scintigraphy” will be performed in 2016 for the first time in our institution.
The number of PET cases in 2015 was about 4,300 and that of SPECT was about 1,800.

Education and Training

We train the staff and plan job rotation effectively using our own education and achievement program.
Our staff regularly attend various training sessions supported by the Ministry of Health, Labour and Welfare, the National Hospital Organization and so on.
The staff also attend clinical department conferences (for example, breast surgery and urology) sharing lots of information.
We accept not only domestic but also oversees students.

List of papers published in 2015


  1. Kitamura H, Kono Y, Murano T, Hiroi K, Ihara K, Aso T, Inoue K, Fukushi M. Estimation of radioactivity in single-photon emission computed tomography for sentinel lymph node biopsy in a torso phantom study. Nucl Med Commun, 36:646-650, 2015


  1. Torii J, Nagai Y, Horita T, Matsumoto Y, Izumo T, Kitagawa M, Ihara K, Nakamura T, Mukoyoshi W, Tennmei K, Suzuki K, Hara A, Sasada S, Aso T. A study on quality improvement of x-ray imaging of the respiratory-system based on a new image processing technique. In: Hoeschen C, Kontos D (eds), Medical Imaging 2015: Physics of Medical Imaging (PROCEEDINGS OF SPIE VOLUME 9412), USA, SPIE Press, pp 941246, 2015