Juntendo Medical Journal
Online ISSN : 2188-2134
Print ISSN : 0022-6769
ISSN-L : 0022-6769
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Volume 7, Issue 5
Displaying 1-8 of 8 articles from this issue
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  • Pathological Studies on the 2 Cases of the Fungal Encephalo-myelitis
    Mitio INUI, Takao OKADA, Kazuo MATSUMOTO, Toshikazu ABE
    1961 Volume 7 Issue 5 Pages 1054-1058
    Published: October 10, 1961
    Released on J-STAGE: November 22, 2014
    DOIhttps://doi.org/10.14789/pjmj.7.1054
    JOURNAL FREE ACCESS
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  • Studies on Simultaneous Tomography
    -- Especially on its Sharpness--
    Katsuya NAGASE
    1961 Volume 7 Issue 5 Pages 1059-1064
    Published: October 10, 1961
    Released on J-STAGE: November 22, 2014
    DOIhttps://doi.org/10.14789/pjmj.7.1059
    JOURNAL FREE ACCESS
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    The Auther studied on the simultaneous polytomography using the existing X-ray tomography unit. In this cassete, the five sets of type folie for 80KVp use were superimposed, to obtain the images corresponding to five sections at different depth in the body. The sharpness was examined in the range of 65-80KVp, with and without the paraffin phantom, and the sharpness was measured by the metal grid. From the experimental result, it was concluded that the unsharpness due to secondary radiations, reduced the radiographic sharpness in simultaneous tomography more than in the conventional single tomography. It was necessary. to use high efficiency Bucky. to use low voltage. to use narrow beem. then it were adequate for clinical use.
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