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Volume 23 (1967)
- Issue 5 Pages 367-
- Issue 4 Pages 289-
- Issue 3 Pages 252-
- Issue 2 Pages 185-
- Issue 1 Pages 1-
Volume 23, Issue 4
Displaying 1-16 of 16 articles from this issue
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Article type: Cover
1968 Volume 23 Issue 4 Pages Cover10-
Published: January 31, 1968
Released on J-STAGE: June 25, 2017
JOURNAL FREE ACCESSDownload PDF (727K) -
Article type: Cover
1968 Volume 23 Issue 4 Pages Cover11-
Published: January 31, 1968
Released on J-STAGE: June 25, 2017
JOURNAL FREE ACCESSDownload PDF (727K) -
MINORU NAKAMURA, SUMIO KAWAMOTO, NORIYUKI KODA, YOSHINORI YATANIArticle type: Article
1968 Volume 23 Issue 4 Pages 289-297
Published: January 31, 1968
Released on J-STAGE: June 25, 2017
JOURNAL FREE ACCESSRecently, the increasing breast cancer mortality has made the demand for early diognosis even more urgent, and we are concerned that the standardized technique of mammography has not yet been established. There are a few particular problems in the present method of mammography. One of them is, the poor contrast in the image on account of little difference in x-ray absorption of the soft tissue. Also, it is difficult to obtain suitable homogeneous x-ray graphic density because of the cone shape of the breast and its position. with the use of a special large capacity 'soft x-ray'tube with a glass window, and with the method of compensating the density of mammography byethyl alcohol, we have been able to obtain the image of the whole mamma in homogeneous density. As for positioning the flat mamma, which are more prevalent in Japan than in other countries, we attempted a new technique. By the use of a hollow parafin block and a cechil alcohol block, add with a suction pump, we were able to attract and form the mamma in place. These parafin and cechil alcohol blocks have two functions, namely, density compensation of the x-ray, and the forming of the mamma. We are confident that if the volume of the mamma attracting cavity of the density compensation block fits the mamma well, the effect of attraction will be very great. We have made a mammographic table from other works and have studied the ability of the intensifying screen and the grid ratio in the region of 25kVp-30kVp. The results are as follows : 1. In x-ray graphic contrast, the method of combining a back-screen and 4 : 1 grid ratio is better than the non-screen method. 2. X-ray exposure time by this method is 1/5 of that of the non-screen method.View full abstractDownload PDF (2216K) -
HIROSHI TSUCHIYA, TEIICHI KASHINO, YOSHINOBU KATO, KATSUMI TOMITAArticle type: Article
1968 Volume 23 Issue 4 Pages 298-313
Published: January 31, 1968
Released on J-STAGE: June 25, 2017
JOURNAL FREE ACCESSSince the last World War, with the progress of medical science, radiographic technique has also progressed. That progress of the radiographic technique was helped by new inventions of and improvements in the radiographic instruments. So therefore, at present the radiographic instruments are vital to the radiographic technique and should not be lost. However, until now for some reason, there have been no studies made on the classification and systematizing of these radiographic instruments. Because of the above reason, 1) We have organized and consolidated a single work by relying on any documents and by investigating the history of radiographic instruments. 2) We have attempted to make a table of the consolidated and classified radiographic instruments.View full abstractDownload PDF (1718K) -
SEIICHI SAWADAArticle type: Article
1968 Volume 23 Issue 4 Pages 314-318
Published: January 31, 1968
Released on J-STAGE: June 25, 2017
JOURNAL FREE ACCESSConcerning radiography, it is desirable to have the bone formation and soft tissue formation appear on the film in proper density. If the thickness of the subject to be radiographed is extremely uneven, the image produced on the film will not appear evenly and diagnosis of the picture will be hindered. In order to compensate for the difference of x-ray absorption with such irregularity of density, we have investigated a way to film the area by means of using a cotton bag filled with a suitable combination of rice flour and sodium bicarbonate and placing it on the area in proper distribution. By using this method, stedies were made on the selection of powder and to its application. The areas filmed were the tomography of the nasal bone (lateral) and cervical vertebra (lateral), the cervical vertebra-upper thoracic vertebra (lateral), ankle joint (lateral), and metatarsus (dorsi-plantar). The result of the investigation was the improvement of the area of over exposure, and the proper density distribution. Also, as for the character and density of the mixed powder, we found that for normal useage the ratio of 60 to 40 of the rice powder and bicarbonate soda respectively, is most suitable.View full abstractDownload PDF (461K) -
SADAYOSHI KUMAGAYA, KOJI KAKIHARA, SHIZUHIRO KAWATA, SHOICHI YAMAGUCHIArticle type: Article
1968 Volume 23 Issue 4 Pages 319-326
Published: January 31, 1968
Released on J-STAGE: June 25, 2017
JOURNAL FREE ACCESSAn investigation into the radiography of the bone necessary for the mass examination of the Caisson Disease was made. In the past, the use of the High Voltage technique for the radiography of the bone was considered unsuitable. However, in order to improve the appearance of the image of the Caries perculiar to the Caisson Disease, upon verifying the effectiveness of the High Voltage technique, the fundamental research was made. When compared with the Low Voltage, the High Voltage technique was low in contrast and sharpness of image, but for the general description of the lesion of Caries it was favorable and the rate of detection of the disease high. Hence, this technique should be applied more positively.View full abstractDownload PDF (1961K) -
AKITOSHI KOBAYASHI, HIROSHI HASHIBA, TETSUO YAMA, TOORU NISHII, TAKESH ...Article type: Article
1968 Volume 23 Issue 4 Pages 327-333
Published: January 31, 1968
Released on J-STAGE: June 25, 2017
JOURNAL FREE ACCESSThe method of subtraction in rapid serialographic contrast studies of the heart and the great ressels is discribed, using-film-changer (Elema Schonander) and Roentgen cine camera (64,128,200,400fps), and its application to angiocardiography is discussed. Four examples are presented. It is concluded that the technique of subtraction is of value in defining the outlines of coronary arteries and branches of the aorta where their margins are obscured by overlying bone and mediastinal shadows.View full abstractDownload PDF (2136K) -
SHINICHI IKEMOTO, MAMORU TAKATAArticle type: Article
1968 Volume 23 Issue 4 Pages 334-338
Published: January 31, 1968
Released on J-STAGE: June 25, 2017
JOURNAL FREE ACCESSRecently, the semiconductor detector was inproved considerably for the detector of radiation. However, it was unknown whether it was capable for medical application. So we exploved the cathetertype p-i-n junction litium drifted silicon detector as to the medical application. The result of our fundamental experiment revealed that it was capable for medical application. Its size is 2×10×1mm.View full abstractDownload PDF (711K) -
[in Japanese]Article type: Article
1968 Volume 23 Issue 4 Pages 339-
Published: January 31, 1968
Released on J-STAGE: June 25, 2017
JOURNAL FREE ACCESSDownload PDF (224K) -
[in Japanese], [in Japanese], [in Japanese]Article type: Article
1968 Volume 23 Issue 4 Pages 339-343
Published: January 31, 1968
Released on J-STAGE: June 25, 2017
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[in Japanese], [in Japanese], [in Japanese], [in Japanese]Article type: Article
1968 Volume 23 Issue 4 Pages 343-347
Published: January 31, 1968
Released on J-STAGE: June 25, 2017
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[in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...Article type: Article
1968 Volume 23 Issue 4 Pages 347-353
Published: January 31, 1968
Released on J-STAGE: June 25, 2017
JOURNAL FREE ACCESSDownload PDF (925K) -
[in Japanese], [in Japanese], [in Japanese]Article type: Article
1968 Volume 23 Issue 4 Pages 353-358
Published: January 31, 1968
Released on J-STAGE: June 25, 2017
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[in Japanese], [in Japanese], [in Japanese], [in Japanese]Article type: Article
1968 Volume 23 Issue 4 Pages 358-363
Published: January 31, 1968
Released on J-STAGE: June 25, 2017
JOURNAL FREE ACCESSDownload PDF (337K) -
Article type: Appendix
1968 Volume 23 Issue 4 Pages 364-366
Published: January 31, 1968
Released on J-STAGE: June 25, 2017
JOURNAL FREE ACCESSDownload PDF (301K) -
Article type: Cover
1968 Volume 23 Issue 4 Pages Cover12-
Published: January 31, 1968
Released on J-STAGE: June 25, 2017
JOURNAL FREE ACCESSDownload PDF (141K)
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