巻号一覧
17 巻 (1961)
- 4 号 p. 171-
- 3 号 p. 98-
- 2 号 p. 51-
- 1 号 p. 1-
17 巻, 3 号
選択された号の論文の11件中1～11を表示しています
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原稿種別: 表紙
1961 年 17 巻 3 号 p. Cover7-
発行日: 1961/12/25
公開日: 2017/06/24
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原稿種別: 表紙
1961 年 17 巻 3 号 p. Cover8-
発行日: 1961/12/25
公開日: 2017/06/24
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原稿種別: 付録等
1961 年 17 巻 3 号 p. App3-
発行日: 1961/12/25
公開日: 2017/06/24
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林 周二原稿種別: 本文
1961 年 17 巻 3 号 p. 98-138
発行日: 1961/12/25
公開日: 2017/06/24
ジャーナル フリーThe limitation in manifesting X-ray gram is influenced by an apparatus, X-ray tube, fittings and sensitizer, all of which have been improved. According to these improvements, the limitations in manifesting X-ray gram has been reduced. Therefore the author tried to find the limitations, using usual apparatus, fittings and sensitizer. In general, contrast, sharpness and density are the important factors in manifesting X-ray gram. Regarding contrast at the detailed manifesting, that is, contrast in detail, in order to study the delicate diference of density and the manifestation of a very small object, the author examined the position of the object (M.P.D.) surrounded by other substances which are a cause of scattering X-ray, the size of the object and the degree of X-ray absorption and the following points were concluded. 1) The more the X-ray absorption is, and the bigger the object is, the larger the M.P.D. becomes to reduce the relative contrast. In those experiments each limits were found in every change of doses of abosrbed X-ray, the size of object and M.P.D. 2) When the scattering X-ray was eliminated, the more the X-ray absorption is, and the bigger the object is, the relative contrast was increased. The phenomena was caused by the fact that X-ray quantity and condition of scattering X-ray are influenced by the object and surrounding substances. The same phenomena were found in radiography with opaque medium in which the X-ray absorption is more than in the usual rediography. The method for manifesting the part whose density is low as mentioned above was studied in theory. Standing on the results obtained from the theoritical study, the author made fundamental experiments, using a phantom in angiography, ventriculography, cholecystography, cystography and nephrography, all of which are hard to show a clear contrast, or whose objects are very small and slender. These fundamental experiments were applied in clinic. Taking up the object like beam-borne and crack in borne, the unsharpness caused by form of object and sensitizer was studied and unsharpness caused by momement of object was studied in angiocrardiography. The degree of unsharpness controlled by the size of focus and M.P.D., tube voltage, scattering X-ray, the exposure time-all of which have influence on sharpness-were exaimned and each limits in every change was tested out. In order to interpretate the detailed X-ray gram, a scientific and objective way of observing was abovocated here, considering the light quantitty, reflected light from the outside and psychlogical influence.抄録全体を表示PDF形式でダウンロード (6266K) -
中村 実原稿種別: 本文
1961 年 17 巻 3 号 p. 138a-142
発行日: 1961/12/25
公開日: 2017/06/24
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草皆 太平原稿種別: 本文
1961 年 17 巻 3 号 p. 143-158
発行日: 1961/12/25
公開日: 2017/06/24
ジャーナル フリーThe first report on tomography was followed by the second, in which the scattering X-ray was from the several points of view. In order to find the rate of scattering X-ray doses contained, a method for computaing the degree of density only in direct X-ray was devised. The values of the tube voltage, extent of the field and angle of rotation were found experimently.抄録全体を表示PDF形式でダウンロード (1746K) -
飯塚 芳郎原稿種別: 本文
1961 年 17 巻 3 号 p. 159-162
発行日: 1961/12/25
公開日: 2017/06/24
ジャーナル フリーThe special character of X-ray film, that is, the relation between the development time and progress of developing were studied. Home manifactured film P.X. and famous imported ones were used in this comperative study. The following results were obtained. 1) The progress of developing of film P.X. is faster than that of usual ones. Therefore, in making film, it is suggested evidently to be intended to reduce the development time, time of the treatments in a dark room. 2) Such a film as fast in developing should be used with proper X-ray doses for purpose of reducing the development time. 3) The developing at 20℃ for 3-4 munutes was tested out to be the most proper for the film P.X. In any case, deveroping at 20℃ should not be continued for more than 5 minutes.抄録全体を表示PDF形式でダウンロード (856K) -
内藤 義親, 松浦 浩, 伊藤 謙助原稿種別: 本文
1961 年 17 巻 3 号 p. 163-166
発行日: 1961/12/25
公開日: 2017/06/24
ジャーナル フリーTo take a radiography of optic canal, sellar or lateral skull, the occipito-frontal roentgenography was used. The focus of the tube being pointed at right angle to the center of a film, the both points of incidence and emission were marked. Then the line between the two points mentioned above was put just on the perpendicular line from the tube focus to the center of film. The method and needful apparatus were reported here.抄録全体を表示PDF形式でダウンロード (1419K) -
原稿種別: 付録等
1961 年 17 巻 3 号 p. 167-
発行日: 1961/12/25
公開日: 2017/06/24
ジャーナル フリーPDF形式でダウンロード (72K) -
原稿種別: 付録等
1961 年 17 巻 3 号 p. 168-169
発行日: 1961/12/25
公開日: 2017/06/24
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原稿種別: 表紙
1961 年 17 巻 3 号 p. Cover9-
発行日: 1961/12/25
公開日: 2017/06/24
ジャーナル フリーPDF形式でダウンロード (330K)
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