A STUDY ON THE IMAGE PRODUCING PRINCIPLE OF SO CALLED ORTHOPANTOMOGRAPHY

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  • いわゆるオルソパントモグラフィーの像成立原理に関する研究

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Now, so called Orthopantomography plays an important role in diagnostic radiology.Therefore, a many researches were carried out about the image producing principle and itsapplication of orthopantomography. Notwithstanding its significant standpoint, however, the image producing factor and the principle in orthopantomography have been confusedwith that of tomography in textbook and another articles because orthopantomography isgenerally said to be a modified tomographic method for a long period of time.<BR>The authors suggested that the principle of orthopantomographic method seems to be more like that of curved surface slitgraphic method than of true tomography, and certified the principle of orthopantomography for the adjustment of aforementioned misconception in the past. The obtained results are as follows;<BR>1. In empirically and theoretically, the authors demonstrated that the image producing principle of orthopantomography seems not to be the applied form of tomographic conception.<BR>2. Orthopantomography is the roentgenographic method as termed “curved surface slitgraphy” and in principle, is no other dissimilarity between orthopantomography and NUMATA's roentgenographic method that is considered to be another roentgenographic method.

Journal

  • Shika Hoshasen

    Shika Hoshasen 19 (1), 39-46, 1979

    Japanese Society for Oral and Maxillofacial Radiology

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