| Japanese |
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| Title | 電子計算機を用いたR.I.イメージの表示 |
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| Subtitle | 原著 |
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| Authors | 福久健二郎, 飯沼武 |
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| Organization | 放射線医学総合研究所 |
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| Journal | 核医学 |
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| Volume | 8 |
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| Number | 6 |
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| Page | 431-443 |
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| Year/Month | 1971/12 |
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| Article | 原著 |
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| Publisher | 日本核医学会 |
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| Abstract | 「緒言」近年, R.I.イメージングに電子計算機が用いられ各種のデータ処理が行なわれている. その中で一つの重要な要素は処理されたR.I.像を如何によく表示するかという点にあることは周知の通りである. 電子計算機の出力機器を用いた像の表示においては過去のR.I.イメージ装置の記録部(スキャナにおけるドット・スキャンやフォト・スキャンおよびカメラにおけるCRT)に比していくつかの利点がある. それらは先ず測定されたR.I.像が計算機のメモリーに保存されているため, 元の画像情報を失なわずに表示条件(コントラストや表示する場所など)を自由に変化できること, 次に条件が異なった像を眼で見ながら短時間に何回も更新できることなどである. われわれは昨年度, R.I.イメージのディジタル収集と処理を行なうためオン・ライン計算機システムを導入し現在スキャナのデータ処理をルーチンに行なっているが, データ処理プログラムの一つとして医師の診断に必要なR.I.像を表示する各種のプログラムを開発した. |
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| Practice | 臨床医学：一般 |
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| English |
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| Title | Programs for computer display of radioisotope image |
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| Subtitle | |
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| Authors | Kenjiro Fukuhisa, Takeshi A.Iinuma |
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| Authors(kana) | |
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| Organization | |
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| Journal | The Japanese Journal of nuclear medicine |
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| Volume | 8 |
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| Number | 6 |
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| Page | 431-443 |
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| Year/Month | 1971/12 |
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| Article | Original article |
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| Publisher | THE JAPANESE SOCIETY OF NUCLEAR MEDICINE |
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| Abstract | [Summary] Recently computer processing is widely used in radioisotope imaging throughout the world. One of the important factors in the computer processing is the method of image display by various I/O peripherals of computer, since diagnostic information is mainly extracted from displayed images by physician's eyes. In this paper, three methods computer display are described in connection with an on-line computer system established at the National Institute of Radiological Sciences. The first employes a cathode-ray tube (CRT) unit in which scintigrams are displayed by 4096 (64×64) points with four levels of brightness. Three types of display pattern can be generated by a CRT display program: (1) a usual two-dimensional pattern with brightness modulation, (2) a volumetric pattern with variable viewing angles, and (3) a cross-section of region of interest. As the CRT display has a fast response in changing a display pattern, the program is written in conversational mode between operator and computer. The second method uses a curve plotter (a X-Y recorder) and a program is developed to plot a volumetric pattern with variable viewing angles and full-scale. The third method is a two-dimensional pattern printed by a line printer. Using suitable characters, a black and white pattern can be produced with an arbitrary contrast. The program allows to select anyone of 48 characters for print and to multi-print up to 6 characters, We have been using the three methods in clinical routine, but the CRT display is most frequently used because of its on-line real time function and display by the curve plotter and line printer is done after an intelligible pattern is found on the CRT display. |
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| Practice | Clinical medicine |
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| Keywords | |
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