-
Article type: Cover
1990 Volume 46 Issue 4 Pages
Cover13-
Published: April 01, 1990
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
Article type: Index
1990 Volume 46 Issue 4 Pages
Toc13-
Published: April 01, 1990
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
Article type: Index
1990 Volume 46 Issue 4 Pages
Toc14-
Published: April 01, 1990
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
Article type: Appendix
1990 Volume 46 Issue 4 Pages
i-ii
Published: April 01, 1990
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
Article type: Appendix
1990 Volume 46 Issue 4 Pages
iii-iv
Published: April 01, 1990
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
MASAKATSU HATAGAWA, KENJI KISHIMOTO, RIE YOSHIDA, JUNJI SHIRAISHI
Article type: Article
1990 Volume 46 Issue 4 Pages
634-639
Published: April 01, 1990
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
Number of noise-equivalent quanta (NEQ (u)) has provided a useful means for evaluating image quality. In this paper, we simulated the effects of various evaluated imaging factors (modulation transfer function (MTF), gamma and absorption efficiency) on NEQ (u). Regarding the simulations, the ideal values of evaluated imaging factors were substituted to Rossmann's equation. As a result, it was found that NEQ (u) at high frequencies is reduced by the lower MTF and NEQ (u) at low frequencies was reduced by the lower absorption efficiency and structure mottle. Gamma also changes completely throughout NEQ (u). We concluded that these results are useful to and in understanding the concept of NEQ (u).
View full abstract
-
OSAMU NAKAMURA, SABURO AKIYAMA, YOSHITOMO SANO, GUIO UCHIYAMA, HIROSHI ...
Article type: Article
1990 Volume 46 Issue 4 Pages
640-644
Published: April 01, 1990
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
A comparison and analysisofan estimated magnetic field distribution measured using a gauss meter equipped with a probe and calculated magnetic field distribution from computer simulation based on the boundary element method. Two institutions were chosen, where 0.15T MRI system (resistive conductor) and 0.5T MRI system (super conductor) with wall shielding were installed. Those measured and calculated magnetic field distributions showed good correlation. However, a higher shielding effect was observed in the measured data than in the simulated data.
View full abstract
-
MASATO TSURU, YOSHIAKI NAKAJIMA, TETSUO MORITA, OSAMU UEDA, YUKIHIRO O ...
Article type: Article
1990 Volume 46 Issue 4 Pages
645-649
Published: April 01, 1990
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
A evaluation of the usefulness of the ultrasonic coupling medium (solid intercalary method; SIC method) for obtaining a clear image of the left ventricular apex was carried out. The ultrasonic coupling medium was placed between the probe and body surface on apical four chamber view. One-hundred cases were studied using this method. They include 73 males and 27 females, with a mean age of 56.9 (11〜86 years of age). Epicardium and endocardium of the left ventricular apex was defined with or without the employment of the SIC method and its visual representation was classified into (good, fair and poor). In the cases of whome more than 4 of 5 observers judged good or fair, we decided the distinction of border was possible. The determination of the epicardium of the left ventricular apex was possible in 92 cases with and 46 cases without the use of the SIC method, and it of the endocardium was possible in 80 cases with and 74 cases without the SIC method, respectively.
View full abstract
-
KAZUO INAMOTO
Article type: Article
1990 Volume 46 Issue 4 Pages
650-659
Published: April 01, 1990
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
The courses for Bachelor of Science Degree in Radiologic Technology were studied in 11 universities in USA. Radiography courses were all found, however nuclear medicine in 4 and radiotherapy in only one. A new course for studying diagnostic imaging was opened in Thomas Jefferson University. The curricula were composed of the ARRT structure programs and university designed ones which included special lectures for management, education and clinical speciality. Transfer credits were also prepared for the certificated or associate degree RTs. The BS-courses for RT in USA were evaluated to be excellent in their purposes and well organized programs of the educational curricula.
View full abstract
-
[in Japanese]
Article type: Article
1990 Volume 46 Issue 4 Pages
660-663
Published: April 01, 1990
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
Article type: Appendix
1990 Volume 46 Issue 4 Pages
664-665
Published: April 01, 1990
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
Article type: Appendix
1990 Volume 46 Issue 4 Pages
666-
Published: April 01, 1990
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
[in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...
Article type: Article
1990 Volume 46 Issue 4 Pages
666-
Published: April 01, 1990
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
[in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...
Article type: Article
1990 Volume 46 Issue 4 Pages
666-
Published: April 01, 1990
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
[in Japanese], [in Japanese], [in Japanese], [in Japanese]
Article type: Article
1990 Volume 46 Issue 4 Pages
666-
Published: April 01, 1990
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
[in Japanese], [in Japanese], [in Japanese]
Article type: Article
1990 Volume 46 Issue 4 Pages
666-667
Published: April 01, 1990
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
Article type: Appendix
1990 Volume 46 Issue 4 Pages
667-
Published: April 01, 1990
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
[in Japanese]
Article type: Article
1990 Volume 46 Issue 4 Pages
667-
Published: April 01, 1990
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
[in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...
Article type: Article
1990 Volume 46 Issue 4 Pages
667-
Published: April 01, 1990
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
[in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...
Article type: Article
1990 Volume 46 Issue 4 Pages
667-
Published: April 01, 1990
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
[in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...
Article type: Article
1990 Volume 46 Issue 4 Pages
667-
Published: April 01, 1990
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
[in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...
Article type: Article
1990 Volume 46 Issue 4 Pages
667-668
Published: April 01, 1990
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
[in Japanese], [in Japanese]
Article type: Article
1990 Volume 46 Issue 4 Pages
668-
Published: April 01, 1990
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
[in Japanese]
Article type: Article
1990 Volume 46 Issue 4 Pages
668-
Published: April 01, 1990
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
[in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...
Article type: Article
1990 Volume 46 Issue 4 Pages
668-
Published: April 01, 1990
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
[in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...
Article type: Article
1990 Volume 46 Issue 4 Pages
668-
Published: April 01, 1990
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
[in Japanese], [in Japanese], [in Japanese], [in Japanese]
Article type: Article
1990 Volume 46 Issue 4 Pages
669-
Published: April 01, 1990
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
[in Japanese], [in Japanese], [in Japanese], [in Japanese]
Article type: Article
1990 Volume 46 Issue 4 Pages
669-
Published: April 01, 1990
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
[in Japanese]
Article type: Article
1990 Volume 46 Issue 4 Pages
669-
Published: April 01, 1990
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
[in Japanese], [in Japanese], [in Japanese], [in Japanese]
Article type: Article
1990 Volume 46 Issue 4 Pages
669-
Published: April 01, 1990
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
[in Japanese], [in Japanese], [in Japanese], [in Japanese]
Article type: Article
1990 Volume 46 Issue 4 Pages
669-670
Published: April 01, 1990
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
[in Japanese], [in Japanese], [in Japanese], [in Japanese]
Article type: Article
1990 Volume 46 Issue 4 Pages
670-
Published: April 01, 1990
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
[in Japanese]
Article type: Article
1990 Volume 46 Issue 4 Pages
670-
Published: April 01, 1990
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
[in Japanese]
Article type: Article
1990 Volume 46 Issue 4 Pages
670-
Published: April 01, 1990
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
[in Japanese]
Article type: Article
1990 Volume 46 Issue 4 Pages
670-671
Published: April 01, 1990
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
[in Japanese], [in Japanese], [in Japanese], [in Japanese]
Article type: Article
1990 Volume 46 Issue 4 Pages
671-
Published: April 01, 1990
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
[in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...
Article type: Article
1990 Volume 46 Issue 4 Pages
671-
Published: April 01, 1990
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
[in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...
Article type: Article
1990 Volume 46 Issue 4 Pages
671-
Published: April 01, 1990
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
[in Japanese]
Article type: Article
1990 Volume 46 Issue 4 Pages
671-672
Published: April 01, 1990
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
[in Japanese]
Article type: Article
1990 Volume 46 Issue 4 Pages
672-
Published: April 01, 1990
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
[in Japanese], [in Japanese], [in Japanese]
Article type: Article
1990 Volume 46 Issue 4 Pages
672-
Published: April 01, 1990
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
[in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...
Article type: Article
1990 Volume 46 Issue 4 Pages
672-
Published: April 01, 1990
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
[in Japanese], [in Japanese], [in Japanese]
Article type: Article
1990 Volume 46 Issue 4 Pages
672-
Published: April 01, 1990
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
[in Japanese]
Article type: Article
1990 Volume 46 Issue 4 Pages
672-673
Published: April 01, 1990
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
[in Japanese], [in Japanese]
Article type: Article
1990 Volume 46 Issue 4 Pages
673-
Published: April 01, 1990
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
[in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...
Article type: Article
1990 Volume 46 Issue 4 Pages
673-
Published: April 01, 1990
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
[in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...
Article type: Article
1990 Volume 46 Issue 4 Pages
673-674
Published: April 01, 1990
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
[in Japanese], [in Japanese], [in Japanese], [in Japanese]
Article type: Article
1990 Volume 46 Issue 4 Pages
674-
Published: April 01, 1990
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
[in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...
Article type: Article
1990 Volume 46 Issue 4 Pages
674-
Published: April 01, 1990
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
[in Japanese]
Article type: Article
1990 Volume 46 Issue 4 Pages
674-
Published: April 01, 1990
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS