About JRSSpecial Report
"Modalities in Japan" posted on 30-September-2002
MODALITIES in JAPAN
Committie on public information, Japan Radiological Society.
Susumu Kandatsu, National Institute of Radiological Sciences, Chiba.
Last updated : October 2002.
Introduction
We reviewed the situation of the spread of the medical devices and systems in Japan. The Objects are CT, MRI, Istopes, radiation instruments, and PACS. The numerical value of the devices and the systems primarily depends on "Medical Devices & System Databook 2002" by M-E Promote Association co. Ltd.
Abbreviations of makers
Aloka: ALOKA co., LTD.
CTI: CTI Molecular Imaging, Inc.
Electa: Elekta.K.K.
GE: GE Yokokawa Medical Systems Corporation.
Hamamatsu: Hamamatsu Photonics K.K.
Hitachi: Hitachi Medical Corporation.
MDS: MDS Nordion Haan GmbH.
Mitsubishi: Mitsubishi Electoric
Nucletron: Nuclretron
Philips: Philips Medical Systems Japan.
Postiron: Positron Corporation.
Shimadzu: Shimadzu Corporation.
Siemens: Siemens-Asahi Medical Technologies Ltd.
Toshiba: Toshiba Corporation Medical Systems Company.
Varian: Varian Medical Systems
CT scanners as of August 2001.
|
Toshiba |
GE |
Hitachi |
Shimadzu |
Siemens |
Other |
Total | |
| Conventional |
1618 |
1443 |
1399 |
416 |
10 |
0 |
4886 |
| Helical |
2723 |
1705 |
888 |
401 |
248 |
38 |
6003 |
| MDCT |
254 |
163 |
0 |
0 |
55 |
0 |
472 |
| AngioCT |
38 |
23 |
15 |
0 |
10 |
0 |
86 |
| Total |
4633 |
3334 |
2302 |
817 |
323 |
38 |
11447 |
MDCT: Multi Row Detector CT.
Angio CT: Combined system of Angiography and CT scanner.
Recently 16 slice MDCT system has been released, which will spread rapidly in the near future.
MR systems as of May 2001.
|
GE |
Hitachi |
Toshiba |
Siemens |
Shimadzu |
Philips |
Total | |
| below0.5T |
111 |
954 |
85 |
70 |
0 |
0 |
1220 |
| 0.5T |
433 |
89 |
452 |
5 |
160 |
79 |
1218 |
| 1.0T |
126 |
0 |
0 |
237 |
164 |
13 |
540 |
| 1.5T |
450 |
9 |
319 |
208 |
73 |
175 |
1234 |
| Total |
1120 |
1052 |
856 |
520 |
397 |
267 |
4212(+10) |
Since April 2002, the amount of the public insurance payment for a MR examination has changed according to the performance of the machine. The spread of the machine of 1.0T or more will be expected in the near future.
Angiography systems as of March 2002.
|
Shimadzu |
Toshiba |
Philips |
GE |
Siemens |
Hitachi |
Total |
|
940 |
878 |
478 |
477 |
404 |
380 |
3557 |
SPECT systems as of January 2002.
|
Shimadzu |
Toshiba |
GE |
Hitachi |
Siemens |
Aloka |
Total |
|
583 |
578 |
350 |
170 |
149 |
33 |
1863 |
PET systems as of March 2002.
|
Shimadzu |
Siemens |
GE |
Positron |
Hamamatsu |
Hitachi |
CTI |
Total |
|
19 |
15 |
9 |
6 |
2 |
2 |
1 |
63 |
LINAC systems as of October 2001.
|
Mitsubishi |
Toshiba |
Varian |
NEC |
Hitachi |
Electa |
Total |
|
367 |
235 |
89 |
65 |
37 |
2 |
793 |
Brachytherapy systems as of October 2001.
|
Shimadzu |
Nucletron |
STS |
Varian |
MDS |
Total |
|
85 |
73 |
18 |
7 |
3 |
186 |
Particle Therapy as of October 2001
Proton|
Institute |
Energy |
| Proton Medical Research Center, University of Tsukuba |
250 MeV |
| National Cancer Center East |
235 MeV |
| National Institute of Radiological Sciences |
70 MeV |
| Fukui Wakasa Wan Energy Research Center |
230 MeV |
| Hyogo Ion Beam Medical Center: |
230 MeV |
|
Institute |
Energy |
| National Instiute of Radiological Sciences: |
800 MeV |
| Hyogo Particle therapy Center |
320 MeV |
Radio Surgery (LINAC) as of October 2001
140 systems.
Radio Surgery(Gamma knife) as of Octorber 2001
35 systems.
Hyperthermia as of October 2001
268 systems.
ESWL as of October 2001
803 systems.
Teleradiology(Dignosis of CT, MR image, etc.) systems as of March 2002.
|
Secom |
NetHospital |
DrNet |
NetMedical |
ImagingNet |
Tepco |
Total |
|
255 |
103 |
36 |
28 |
17 |
1 |
1272 hospitals |
n many hospitals that equip CT or MR systems, no radiologists are there. Then many radiologits work as a part-timer in those hospitals.
PACS as of March 2002
1468 systems.
The definition of "PACS" is assumed to be a system with at least one image file server.
