| Japanese |
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| Title | 通信衛星を用いた医学画像通信の検討 - 骨シンチグラムをモデルとして - |
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| Subtitle | 原著 |
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| Authors | 鈴木英樹*, 遠藤啓吾*, 井上登美夫*, 嶋本薫** |
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| Authors(kana) | |
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| Organization | *群馬大学医学部核医学教室, **群馬大学工学部情報工学科 |
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| Journal | 核医学 |
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| Volume | 32 |
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| Number | 10 |
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| Page | 1073-1078 |
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| Year/Month | 1995/10 |
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| Article | 原著 |
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| Publisher | 日本核医学会 |
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| Abstract | 「要旨」通信衛星は地上回線による通信と比較して, 広域性, 同報性, 大容量, 耐災害性などの特徴があり, 主に画像伝送, データ転送を主流にし, その利用が本格化している. われわれは赤道上空36,000kmにあるデジタル静止通信衛星JCSAT 1号の狭帯域回線(64 kbps)を利用し, ビデオ信号による静止医療画像(骨シンチグラム)の衛星経由の画像, 地上シャウカステンの画像とで各々診断, 評価し, 結果をRating法にてROC解析した. その結果, ROC曲線に囲まれる部分を算出する面積法による定量化では衛星経由では91.6%(標準誤差2.6%), 地上シャウカステンでは93.2%(標準誤差2.4%)と, 両者の間に有意差はみられなかった. ビデオ信号を用いた狭帯域の通信衛星回線でも, ほぼ確実に病巣はとらえられていた. シンチグラムのみならず, X線CTやMRIなどの送信も可能であり, 非常時の支援に利用できるほか, 遠隔医療やテレビカンファレンスなどへの利用・応用が期待できる. |
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| Practice | 臨床医学：一般 |
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| Keywords | Communication satellite, Image transmission, Scintigraphy, ROC |
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| English |
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| Title | Medical Image Transmission via Communication Satellite : Evaluation of Bone Scintigraphy |
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| Subtitle | Original Articles |
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| Authors | Hideki SUZUKI*, Tomio INOUE*, Keigo ENDO*, Shigeru SHIMAMOTO** |
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| Authors(kana) | |
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| Organization | *Department of Nuclear Medicine & Diagnostic Radiology, School of Medicine, Gunma University, **Department of Computer Science, Faculty of Technology, Gunma University |
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| Journal | The Japanese Journal of nuclear medicine |
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| Volume | 32 |
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| Number | 10 |
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| Page | 1073-1078 |
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| Year/Month | 1995/10 |
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| Article | Original article |
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| Publisher | THE JAPANESE SOCIETY OF NUCLEAR MEDICINE |
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| Abstract | As compared with terrestrial circuits, the communication satellite possesses superior characteristics such as wide area coverage, broadcasting, high capacity, and robustness to disasters. Utilizing the narrow band channel (64 kbps) of the geostationary satellite JCSAT 1 located at the altitude of 36,000km above the equator, the authors investigated satellite-relayed medical imagings by video signals, with bone scintigraphy as a model. Each bone scintigraphy was taken by a handy-video camera, digitalized and transmitted from faculty of technology located at 25 kilometers apart from our department. Clear bone scintigraphy was obtained via satellite, as seen on the view box. Eight nuclear physicians evaluated 20 cases of bone scintigraphy. ROC (Receiver Operating Characteristic) analysis was performed between the scintigraphies on view box and via satellite by the rating method. The area under the ROC curve was 91.6+-2.6% via satellite, and 93.2+-2.4% on the view box and there was no significant difference between them. These results suggest that the satellite communication is very useful and effective system to send nuclear imagings to distant institutes. |
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| Practice | Clinical medicine |
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| Keywords | Communication satellite, Image transmission, Scintigraphy, ROC. |
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