-
Article type: Cover
1993 Volume 49 Issue 10 Pages
Cover3-
Published: October 01, 1993
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
Article type: Appendix
1993 Volume 49 Issue 10 Pages
App3-
Published: October 01, 1993
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
Article type: Appendix
1993 Volume 49 Issue 10 Pages
App4-
Published: October 01, 1993
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
Article type: Index
1993 Volume 49 Issue 10 Pages
Toc3-
Published: October 01, 1993
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
Article type: Index
1993 Volume 49 Issue 10 Pages
Toc4-
Published: October 01, 1993
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
Article type: Appendix
1993 Volume 49 Issue 10 Pages
i-vii
Published: October 01, 1993
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
Article type: Appendix
1993 Volume 49 Issue 10 Pages
vii-
Published: October 01, 1993
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
KOICHI CHIDA, MASAHIRO SAI, YOSHITOMO ISAGO, HIROKI ISHIYA, MASATOSHI ...
Article type: Article
1993 Volume 49 Issue 10 Pages
1732-1738
Published: October 01, 1993
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
It is very important that X-ray tube voltage and waveforms are accurately measured and evaluated. For estimation of the tube voltage waveforms, the tube voltage ripple and tube voltage peak number have been used. However, these are insufficient for more detailed estimation of the tube voltage wave forms. We suggest a frequency analysis method as a newer and more detailed one. In this method, waveforms are analyzed by using fast Fourier transform (FFT). In this paper, tube voltage waveforms in single-phase, three-phase, and constant potential generators will be estimated in detail. In single-phase and three-phase generators, our method is useful for the assessment of distortion of tube voltage waveforms. In a constant potential generator, it is convenient to carry out detailed evaluation of overshoot of tube voltage waveforms. In other words, this method makes possible an objective comparison and a careful examination of tube voltage waveforms in single-phase, three-phase and constant potential generators.
View full abstract
-
ATSUNORI OKADA, KOICHI SUENAGA, YASUMASA SAIGO, YUKI HORIE, HARUHIKO N ...
Article type: Article
1993 Volume 49 Issue 10 Pages
1739-1745
Published: October 01, 1993
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
The ordering system of radiological examinations started in Kagoshima University Dental Hospital on April, 1991. This system has the basic functions of 1) on-line ordering of X-ray examinations, 2) printing out of tack seals, 3) account system of intraoral dental film, 4) storage of history of X-ray examinations, 5) check of pregnancy and infection, and 6) statistics. Special efforts were made to design the ordering chart for the intraoral X-ray examinations which are the most common in the Dental Hospital. Using this system, accuracy of the ordering as well as the patient safety are improved. This system saves also labor of the hospital staff.
View full abstract
-
IKUO IKEDA, HIROMI IKEZAKI, NAOMOTO MATSUMOTO, AKIHIKO YOSHIMURA, YASU ...
Article type: Article
1993 Volume 49 Issue 10 Pages
1746-1751
Published: October 01, 1993
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
In clinical use of stereotactic radiosurgery, the measurement of the dose distribution for narrow beams of high energy X-ray is necessary and fundamental study. Comparative study in the measurement of the dose distribution for narrow beams was performed using diode detector, ionization chambers (0.6, 0.2 and 0.0092ml) and film. Tissue peak dose ratio (TPR) measured by film relatively well agreed with TPR measured by diode detector and ionization chambers. Percentage depth dose (PDD) was calculated by TPR. The dose profile measured by film also well agreed with the dose profiles measured by 0.0092ml ionization chamber and thermoluminescence dosimeter (TLD). In the measurement of the does profile for narrow beams, film dosimetry is most appropriate method with accuracy as same as small volume ionization chamber and with simplicity.
View full abstract
-
NAGAAKI OYAMA
Article type: Article
1993 Volume 49 Issue 10 Pages
1752-1760
Published: October 01, 1993
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
NORIHISA OGAWA
Article type: Article
1993 Volume 49 Issue 10 Pages
1761-1785
Published: October 01, 1993
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
For those peripheral type pulmonary carcinomas of not more than 10mm in diameter which are now regarded as difficult to visualize by plain chest roentgenography, we examined possible X-P technique enabling given us better visibility and higher lesion-detectability against conventional X-P of vascular and trachea distributed adjacent to the cancerous lesion, using a phantom simulating the real structures of the lesion and its circumferential vascular and trachea. The experiments were made as follows; 1) Measurement of effective energy of X-rays on X-ray equipments and variable focus-film distance. 2) Relationship between photographic density and X-ray tube voltage in clinical chest film. 3) Effective energy of X-rays and photographic density in the chest photograph using the phantom. 4) Visibility of nodule in the chest photograph for the position of nodule, the focus-film distance and the effective energy of X-rays. 5) Visibility of the nodule in the plumonary and mediastinum of the chest radiograph for the effective energy of X-rays. 6) Visibility and detectability of nodule for screen/film systems. 7) Detectability of nodule for photographic contrast and content rate of scattered radiation. 8) Visibility and detectability of the nodule for the exposure dose from the X-ray unit of 5 facilities. The results proved that with a combination of high-sharpness or sharpness screen and regular type film provided grid ratio of 12 : 1 (40 lines/cm) and the forcus-film distance of 200cm, X-P should be performed at the effective energy of X-rays of not more than 39.5keV (tube voltage of 120kV, 3 phase 12 peak rectification equipment) and at maximum photographic density of pulmonary area of not more than 2.0. If we gets higher visibility, using of high grid ratio and possible prolongation of the focus-film distance are required. Chest X-P systems (photographing condition, screen/film system, grid, exposure dose, etc.) in 5 medical institutions which we recently examined were under varied conditions of use, but their images showed no great difference.
View full abstract
-
KAYOKO NAKAMURA
Article type: Article
1993 Volume 49 Issue 10 Pages
1786-1791
Published: October 01, 1993
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
CHOICHIRO KIDO
Article type: Article
1993 Volume 49 Issue 10 Pages
1792-1798
Published: October 01, 1993
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
FUMIAKI YAMASHITA
Article type: Article
1993 Volume 49 Issue 10 Pages
1799-1801
Published: October 01, 1993
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
KENICHI SHOJI, SATOMI TERAOKA
Article type: Article
1993 Volume 49 Issue 10 Pages
1802-1805
Published: October 01, 1993
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
AKIO MUTO, MASANORI MIYAZAWA
Article type: Article
1993 Volume 49 Issue 10 Pages
1805-1806
Published: October 01, 1993
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
MUNEHIRO TAKAHASHI
Article type: Article
1993 Volume 49 Issue 10 Pages
1806-1808
Published: October 01, 1993
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
TAKASHI ICHIHARA, NOBUTOKU MOTOMURA
Article type: Article
1993 Volume 49 Issue 10 Pages
1809-1811
Published: October 01, 1993
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
TAKASHI ARAI
Article type: Article
1993 Volume 49 Issue 10 Pages
1812-1814
Published: October 01, 1993
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
YOSHIE TAMECHIKA
Article type: Article
1993 Volume 49 Issue 10 Pages
1814-1818
Published: October 01, 1993
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
SHKIBU CHIYASU
Article type: Article
1993 Volume 49 Issue 10 Pages
1819-1822
Published: October 01, 1993
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
KAZUYA IZUMI
Article type: Article
1993 Volume 49 Issue 10 Pages
1823-1828
Published: October 01, 1993
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
REIKO YAMAO
Article type: Article
1993 Volume 49 Issue 10 Pages
1829-1831
Published: October 01, 1993
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
NORIKO HENMI
Article type: Article
1993 Volume 49 Issue 10 Pages
1832-1834
Published: October 01, 1993
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
TOMOMI KOYAMA
Article type: Article
1993 Volume 49 Issue 10 Pages
1835-1838
Published: October 01, 1993
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
KATSUHEI HORITA, NORIHISA OGAWA
Article type: Article
1993 Volume 49 Issue 10 Pages
1839-1841
Published: October 01, 1993
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
[in Japanese], [in Japanese], [in Japanese], [in Japanese]
Article type: Article
1993 Volume 49 Issue 10 Pages
1842-
Published: October 01, 1993
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
[in Japanese]
Article type: Article
1993 Volume 49 Issue 10 Pages
1843-1846
Published: October 01, 1993
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
Article type: Appendix
1993 Volume 49 Issue 10 Pages
1847-1851
Published: October 01, 1993
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
Article type: Appendix
1993 Volume 49 Issue 10 Pages
1852-
Published: October 01, 1993
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
Article type: Appendix
1993 Volume 49 Issue 10 Pages
1852-
Published: October 01, 1993
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
Article type: Appendix
1993 Volume 49 Issue 10 Pages
1852-
Published: October 01, 1993
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
Article type: Appendix
1993 Volume 49 Issue 10 Pages
1852-
Published: October 01, 1993
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
[in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...
Article type: Article
1993 Volume 49 Issue 10 Pages
1852-
Published: October 01, 1993
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
[in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...
Article type: Article
1993 Volume 49 Issue 10 Pages
1852-
Published: October 01, 1993
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
[in Japanese], [in Japanese], [in Japanese], [in Japanese]
Article type: Article
1993 Volume 49 Issue 10 Pages
1852-
Published: October 01, 1993
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
[in Japanese]
Article type: Article
1993 Volume 49 Issue 10 Pages
1852-
Published: October 01, 1993
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
[in Japanese], [in Japanese], [in Japanese], [in Japanese]
Article type: Article
1993 Volume 49 Issue 10 Pages
1852-
Published: October 01, 1993
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
[in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...
Article type: Article
1993 Volume 49 Issue 10 Pages
1852-1853
Published: October 01, 1993
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
Article type: Appendix
1993 Volume 49 Issue 10 Pages
1853-
Published: October 01, 1993
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
[in Japanese]
Article type: Article
1993 Volume 49 Issue 10 Pages
1853-
Published: October 01, 1993
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
[in Japanese], [in Japanese]
Article type: Article
1993 Volume 49 Issue 10 Pages
1853-
Published: October 01, 1993
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
[in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...
Article type: Article
1993 Volume 49 Issue 10 Pages
1853-
Published: October 01, 1993
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
[in Japanese], [in Japanese]
Article type: Article
1993 Volume 49 Issue 10 Pages
1853-
Published: October 01, 1993
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
[in Japanese]
Article type: Article
1993 Volume 49 Issue 10 Pages
1853-
Published: October 01, 1993
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
[in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...
Article type: Article
1993 Volume 49 Issue 10 Pages
1853-
Published: October 01, 1993
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
[in Japanese]
Article type: Article
1993 Volume 49 Issue 10 Pages
1853-1854
Published: October 01, 1993
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
[in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...
Article type: Article
1993 Volume 49 Issue 10 Pages
1854-
Published: October 01, 1993
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS
-
[in Japanese]
Article type: Article
1993 Volume 49 Issue 10 Pages
1854-
Published: October 01, 1993
Released on J-STAGE: June 29, 2017
JOURNAL
FREE ACCESS