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| Title | Evaluation of Superimposed Radioisotope and X - ray Image |
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| Subtitle | |
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| Authors | Kohei SENDA*, Masao KANEKO* |
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| Organization | *Department of Radiology, Hamamatsu University School of Medicine |
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| Journal | The Japanese Journal of nuclear medicine |
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| Volume | 19 |
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| Number | 1 |
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| Page | 21-28 |
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| Year/Month | 1982/2 |
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| Article | Original article |
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| Publisher | THE JAPANESE SOCIETY OF NUCLEAR MEDICINE |
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| Abstract | [ABSTRACT]A radioisotope image superimposed on an X-ray picture in a film with identical positioning and magnification, which was succeeded by the acid of specially made devices, was evaluated fundamentally and clinically. Magnification of the X-ray image taken by an X-ray apparatus with a focus to film distance of 306.5cm was 1.043 in the position of 10cm above an imaging table. Then, magnification of the radioisotope image was changed to a value of 1.043 by means of adjusting a life-sized imaging device. Two centers of both images were made to coincide with each other by help of a specially made imaging table which enabled a patient to be transported automatically around 90 degrees between two centers of the field of view of a scinticamera and a film cassette holder. On phantom experiment, both images were almost corresponded with each other in position and magnification independently of the position of image sources above the imaging table. Clinically, the technique showed exactly the internal anatomical relationship between an organ or a tissue imaged by radioisotope and its surrounding structures or a complementary indicator imaged by X-ray. And, morphological and functional informations acquired from the superimposed image was more sensitive and accurate than that from a radioisotope image alone. |
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| Practice | Clinical medicine |
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| Keywords | Superimposition of images, Radioisotope and X-ray image |
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| Japanese |
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| Title | RIおよびX線重複画像の評価 |
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| Subtitle | 原著 |
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| Authors | 仙田宏平*, 金子昌生 |
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| Authors(kana) | |
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| Organization | 浜松医科大学放射線医学教室, *現在名古屋大学医学部放射線医学教室 |
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| Journal | 核医学 |
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| Volume | 19 |
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| Number | 1 |
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| Page | 21-28 |
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| Year/Month | 1982/2 |
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| Article | 原著 |
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| Publisher | 日本核医学会 |
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| Abstract | シンチカメラによるRI画像は描出組織とその周囲組織との解剖学的関係を明確に表示できない欠点がある. 体内RI分布の位置や拡がりを的確に描出することは形態診断のみならず機能診断にも意義が大きい. そこで, RI画像をX線画像と同一位置および拡大率で1枚のフィルム上に重ねて撮像できる装置ならびに方法を実用化したので, その有用性を基礎的ならびに臨床的に検討した. ファントム実験で, 撮像用テーブル上10cmのX線画像の拡大率は約1.04となり, その上下5cmにおける拡大率差は約1.7%であった. RI画像の大きさをこの拡大率に合うよう調節したところ, 両画像の幾何学的関係は撮像対象物の位置と無関係にほぼ一致した. 各種シンチグラフィを行った120症例に応用したところ, 臓器の位置や大きさ, 腫瘍病変の位置や拡がりなどを検出するうえに従来のRI画像と比べて的確であり, 内40症例でRI画像診断能の向上に特に有用な結果が認められた. |
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| Practice | 臨床医学：一般 |
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| Keywords | Superimposition of images, Radioisotope and X-ray image |
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