New Polygraph for Selecting the Arbitrary Cardiac Phases

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概要

• 論文の詳細を見る

• New polygraph was especially designed for selecting the arbitrary phases in a cardiac cycle at where the corresponding radiograms should be synchronously exposed.Then, a unit was established in which such polygraph, power injector, Xray generator, and film changer cooperate each other. The radiography based on these 2 fundamental mechanisms is tentatively called phaseselective radiography (PSR) in this paper.In the present study, the selection of the phases in this manner was carried out successively only at arbitrary 1 or 2 places (A or A and B) in a cardiac cycle because of mechanical limitations.Furthermore, since these selected phases are accompanied by the delay circuits (0-8 pulse counts) respectively, 45 pairs of contrast radiograms can be theoretically demonstrable for each of clinical purposes.In addition, test recording prior to actual execution was sufficiently available to obtain accurate determination of the phase required.Meanwhile, application of Sakura isodensity recorder was of usefulness in delineation of differences in density on Xray film and its salient feature was to show the same silhouette as original profile being different from the conventional curve presentation.

• International Heart Journal刊行会の論文

著者

• Kamei Fumio

  Cardiov. Div. Sendai Hosp. Of Jap. National Railways

関連論文

• STUDY ON PHASE-SELECTIVE RADIOGRAPHY RELATION OF CHANGE IN CARDIAC TRANSVERSE TO MECHANOCARDIOGRAM (17TH REPORT) : PROCEEDINGS OF THE 37TH ANNUAL MEETING OF THE JAPANESE CIRCULATION SOCIETY
• STUDY ON THE SELECTED RADIOGRAPHY IN A CARDIAC CYCLE (13TH REPORT) : RELATIONSHIP BETWEEN HEART TRANSVERSE CHANGE AND HEART DIMENSIONS
• New Polygraph for Selecting the Arbitrary Cardiac Phases

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