Japanese Journal of Radiological Technology
Online ISSN : 1881-4883
Print ISSN : 0369-4305
ISSN-L : 0369-4305
Volume 29 , Issue 1
Showing 1-18 articles out of 18 articles from the selected issue
  • Type: Cover
    1973 Volume 29 Issue 1 Pages Cover1-
    Published: May 31, 1973
    Released: June 25, 2017
    JOURNALS FREE ACCESS
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  • Type: Cover
    1973 Volume 29 Issue 1 Pages Cover2-
    Published: May 31, 1973
    Released: June 25, 2017
    JOURNALS FREE ACCESS
    Download PDF (654K)
  • Type: Appendix
    1973 Volume 29 Issue 1 Pages App1-
    Published: May 31, 1973
    Released: June 25, 2017
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  • [in Japanese], [in Japanese]
    Type: Article
    1973 Volume 29 Issue 1 Pages 1-
    Published: May 31, 1973
    Released: June 25, 2017
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  • [in Japanese], [in Japanese]
    Type: Article
    1973 Volume 29 Issue 1 Pages 2-10
    Published: May 31, 1973
    Released: June 25, 2017
    JOURNALS FREE ACCESS
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  • SHOZO IBA
    Type: Article
    1973 Volume 29 Issue 1 Pages 11-18
    Published: May 31, 1973
    Released: June 25, 2017
    JOURNALS FREE ACCESS
    Experiments on the scanographic examination were performed using mechanism of a tube motion of a planigraphic apparatus. A scanographic picture was taken by the contenius motion of a narrow slit which was attached beneath the x-ray tube and was compared with conventional x-ray picture. In the conventional radiograph, as apart from the central beam on the film. The scanographic examination with a planigraphic apparatus indicates the following. This method gives a more corect size of object, resolution test with the grid made of wires size from 0.1 to 0.5 mm was performed. Satisfactory resolution was obtained when the wires of the test grid and the direction of x-ray tube motion were the same, but the test grid set in the direction of right angle or 45 degrees to direction the tube motion showed decreased resolution. In order to determine the true length of bone, the experiment was performed with a metallic rod. The results of the experiment on the effect of slit width of diaphragm on scanography should be taken by x-ray slit light beam within 3 mm on the film.
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  • TATSUJI AOKI, HIROMU NAGASAWA, YOSHITERU KOBAYASHI
    Type: Article
    1973 Volume 29 Issue 1 Pages 19-26
    Published: May 31, 1973
    Released: June 25, 2017
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    The anterio-posterior projection of the upper three cervical vertabral is usually taken with the mouth wide open. However, in the patients with trauma of the cervical spine, it is sometime difficult to take positioning with the mouth open. Therefore this paper deals with some devices for taking the oblique projection of the cervical spine without the mouth open. Also the radiographic scale is made for measuring the lateral projection of the cervical spine with whiplash syndrome.
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  • NOBUO SASAKI, YASUO AIZAWA, HIROSHI ONODERA, TAKENORI HACHIYA, YASUAKI ...
    Type: Article
    1973 Volume 29 Issue 1 Pages 27-30
    Published: May 31, 1973
    Released: June 25, 2017
    JOURNALS FREE ACCESS
    Serial cerebral angiography of frontal and lateral projections is usually performed using two film changers. We have designed a system to obtain the angiograms of those two projections with one film changer "Elema-Schonander Puck-U". The system consists of a special mobile stand for Puck-U in horizontal or vertical position and a patient table which makes it easy to extend the head for puncture of the needle and also makes it unnecessary to move the patient later in order to remove the pillow used for the same purpose. The outline of the system and the actual angiographical procedures using it were presented, and its usefullness was briefly discussed.
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  • MASATSUNA ISHIZAKA, KOUICHI ENDO
    Type: Article
    1973 Volume 29 Issue 1 Pages 31-39
    Published: May 31, 1973
    Released: June 25, 2017
    JOURNALS FREE ACCESS
    Early detection and treatment of congenital dislocation of hipjoint are very important for the future welfare of the child. For early detection, x-ray examination have been employed as an accurate and useful method. Recently, however, attempts have been made to decrease the personal exposure of children and a need arose to reevaluate x-ray medical examination of the hipjoint. The results can be summarized as follows : 1. This survey was carried out on 859 local health centers and 1045 public medical facilities all over Japan. And we have get on answered from 613 (71.4%) of the former and 382 (36.6%) of the latter. 2. X-ray examination of the hipjoint were carrid out in about 12.2% of newborns. 3. Diagnostic methods for hipjoint dislocation have been gradually changing from the conventional x-ray photofluorography to a radiography. In the survey of 1969,the x-ray radiography was employed in about 10%, but in 1972,it was performed in about 70.3%. 4. Gonado protection is quite difficult and this was attempted in 62.1% of local health centers and 55.4% of public hospitals. Nowadays, research development of protective instruments and technique is an important problem.
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  • SHUN-ICHI TANOUE, TOSHIKO YASUDOME, TAKAYUKI YOSHIZUMI
    Type: Article
    1973 Volume 29 Issue 1 Pages 40-45
    Published: May 31, 1973
    Released: June 25, 2017
    JOURNALS FREE ACCESS
    The authors studied comparatively the detectabilities of space occupying lesions and resolutions of collimators of scintillation camera and rectilinear scanner. The results are followings : 1) The resolution of the pinhole collimator is better than that of the 1,000 hole and 4,000 hole pararell collimator. 2) The detectability of lesion magnifying scintiphotography using of pinhole collimator decreased according as phantom become thick, neverthless it is better than that of the other collimators. The detected smallest space occupying lesion employing the pinhole collimator is 0.75 cm, at 10 cm distance of collimator to focal lesion that is centered in thick-varying phantom. 3) The detected minimum focal lesions in liver phantom using the 1,000 hole pararell collimator attached to the delay line system scintillation camera, 37 hole focusing collimator of rectilinear scanner and 1,000 hole collimator attached to the resistancematrix scintillation camera were 2.8 cm, 2.8 cm and 3.0 cm. And then the pinhole collimator attached to the delay line system scintillation camera detected the 1.9 cm in similiar manner. 4) The resolution of pinhole collimator for high energy gamma ray decreased a little. 5) The detectability of pinhole collimator attached to the delay line system scintillation camera for the lesion in thyroid phantom is better than that of the other equipments, then the smallest lesion was 4 mm in the same way. It is derverse special emphasis that the significances of pinhole collimator in clinical use for the magnifying scintigraphy of small organ and the hot area scintigraphy. Furthermore, it is significantly employing of pinhole collimator for the purpose of detection of space occupying lesion in large organ.
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  • SUGUHA TSUTSUMI, TATSUYA USAMI
    Type: Article
    1973 Volume 29 Issue 1 Pages 46-51
    Published: May 31, 1973
    Released: June 25, 2017
    JOURNALS FREE ACCESS
    In our country, the X-ray examination of digestive organs contribute genetically significant dose. We tried to determine the gonad dose in the patient with X-ray examination of the intestines by the measurement of the phantom experiment. We infered positioning of patient from radiography of intestinal examination and measured the ovarian dose by the detector (TLD) in to the bladder of Machlett-Radiography phantom, and testis dose by attaching detector to the scrotum phantom of Mix-Dp. For intestinal examination, gonad of patient-usefull beam distance was an important factor of gonad dose in the patient with X-ray examination of the intestines.
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  • KOUICHI ENDO, MASATSUNA ISHIZAKA
    Type: Article
    1973 Volume 29 Issue 1 Pages 52-60
    Published: May 31, 1973
    Released: June 25, 2017
    JOURNALS FREE ACCESS
    In 1972,an individual survey was conducted of clinical radiation technicians in health centers and public hospitals. Among the survey data, results on hematological examinations are summarized as follows. The results of blood count in radiation technologists gave similar frequency distribution among WBC, RBC and hemoglobin. The average value also gave no statistically significant difference. Upon comparison with the data in healthy Japanese, the average value was significantly lower. When the blood counts in radiation technologists are classified into normal, medical case required, and further examination required, normal WBC and RBC were found in 51.6% and abnormal values in all others. Both RBC and WBC were below the medical care required in 9.2%. Since the survey in 1967,the radiation exposure dose has been low, but the blood counts in radiation technologists have scarcely recovered.
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  • TOMIHIRO YOSHIDA
    Type: Article
    1973 Volume 29 Issue 1 Pages 61-64
    Published: May 31, 1973
    Released: June 25, 2017
    JOURNALS FREE ACCESS
    At the 12th meeting of Japanese Society for Radiogical Technology, Apr., 1956,I presented the results of my study, "The Quantity of Radical Rays I Have been Given by Radioscopy over Twenty-five Years, and How to Protect Against It, " At the 22nd Meeting of Japanese Society for Radiological Technology, Apr., 1966,I preseted the results of my study, "The X-ray Quantity Received by Thirty-five Years Radioscopy, and the Hygiene." (cf. Japanese Journal of Radiological Technnology, vol.22,No.4.) Since June, 1972,I have not engaged in radiographing without protection, but in operating the X-ray TV installation with perfect protection. Here, I divide all the cases of radiographing and radiotherapy over forty-one years from 1931 to June, 1972,into the ones of non-protection and the ones of perfect protection. Moreover, I report the quantity of radical rays I have given by radioscopy, and my present health condition.
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  • [in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...
    Type: Article
    1973 Volume 29 Issue 1 Pages 65-71
    Published: May 31, 1973
    Released: June 25, 2017
    JOURNALS FREE ACCESS
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  • Type: Appendix
    1973 Volume 29 Issue 1 Pages 72-75
    Published: May 31, 1973
    Released: June 25, 2017
    JOURNALS FREE ACCESS
    Download PDF (503K)
  • Type: Appendix
    1973 Volume 29 Issue 1 Pages App2-
    Published: May 31, 1973
    Released: June 25, 2017
    JOURNALS FREE ACCESS
    Download PDF (57K)
  • Type: Index
    1973 Volume 29 Issue 1 Pages Toc1-
    Published: May 31, 1973
    Released: June 25, 2017
    JOURNALS FREE ACCESS
    Download PDF (258K)
  • Type: Cover
    1973 Volume 29 Issue 1 Pages Cover3-
    Published: May 31, 1973
    Released: June 25, 2017
    JOURNALS FREE ACCESS
    Download PDF (288K)
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