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JAHIS 内視鏡 DICOM 画像データ規約 Ver.2.0

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JAHIS 内視鏡 DICOM 画像データ規約 Ver.2.0 ＪＡＨＩＳ標準 １８－００５ ＪＡＨＩＳ 内視鏡 DICOM 画像データ規約 Ver.2.0 ２０１９年２月 一般社団法人 保健医療福祉情報システム工業会 医療システム部会 検査システム委員会 内視鏡部門システム専門委員会 ＪＡＨＩＳ 内視鏡 DICOM 画像データ規約 Ver.2.0 ま え が き これまで内視鏡部門情報システム(EIS：Endoscopy Information System)においては、病院情報システム （HIS）との接続性の標準化を目的としたJAHIS内視鏡データ交換規約により、内視鏡部門での標準化にある 一定の成果をあげてきた。同データ交換規約はHL7 Ver.2.5を使用した、オーダー配信、検査状態、実施情報 を扱っている。一方で、内視鏡検査装置から発生する内視鏡検査画像、そしてこれを保存・再生する画像保 存通信システム（PACS）については触れてこなかった。 しかしながら、近年においては放射線領域外においてもDICOM規格（Digital Imaging and Communications in Medicine）による医用画像のデータ交換が積極的に進んできており、部門を超えた患者情報の共有という 観点やシステム間の整合性及び共用性という観点から、一元的に管理・保管され、統一した画像管理システ ムで参照できるようにすることが望まれている。 内視鏡部門においても、DICOM規格による画像データ出力を行っている運用が散見されるようになってき た。この様な場合では、その多くが放射線向け画像システムとの単純な画像情報交換であり内視鏡画像固有 の扱いについては、その拠り所も無いことからおざなりになっているのが現状である。 そこで、内視鏡部門における、内視鏡検査装置と画像保存通信システム（PACS）との接続性の検討を行う にあたり、DICOM規格による画像保存について述べた「内視鏡DICOM画像データ規約」を制定した。 DICOM規格は、1年に数回改定されるが、今回の「内視鏡DICOM画像データ規約Ver.2.0」は 、DICOM規格2018e を基に「内視鏡DICOM画像データ規約Ver.1.0」を改定した。 なお、リタイアされた項目については、今後の保守が行われないだけで、DICOM利用者間での合意のもと 使用していくことは可能である。 本規約が、内視鏡部門における放射線画像情報システムからの転用などのケースにおいて拠り所とされ、 更には相互運用性及び医用情報の標準化に多少とも貢献できれば幸いである。 ２０１９年２月 一般社団法人 保健医療福祉情報システム工業会 医療システム部会 検査システム委員会 内視鏡部門システム専門委員会 ＜＜ 告知事項 ＞＞ 本規約は関連団体の所属の有無に関わらず、規約の引用を明示することで自由に使用することができるものとします。 ただし一部の改変を伴う場合は個々の責任において行い、本規約に準拠する旨を表現することは厳禁するものとします。 本規約ならびに本規約に基づいたシステムの導入・運用についてのあらゆる障害や損害について、本規約作成者は何 らの責任を負わないものとします。ただし、関連団体所属の正規の資格者は本規約についての疑義を作成者に申し入れ ることができ、作成者はこれに誠意をもって協議するものとします。 ＜＜ DICOM 引用に関する告知事項 ＞＞ DICOM 規格の規範文書は、英語で出版され、NEMA(National Electrical Manufacturers Association)に著作権があり、 最新版は公式サイト http://dicom.nema.org/standard.html から無償でダウンロードが可能です。 この文書で引用する DICOM 規格と NEMA が発行する英語版の DICOM 規格との間に差が生じた場合は、英語版が規範であ り優先します。 実装する際は、規範 DICOM 規格への適合性を宣言しなければなりません。 © JAHIS 2019 1 目 次 1. はじめに......................................................................................................................................................... 8 2. 適用範囲......................................................................................................................................................... 9 3. 引用規格・引用文献と主な用語 ................................................................................................................ 10 4. 用語定義....................................................................................................................................................... 11 4.1. 主要用語 ................................................................................................................................................. 11 4.1.1. あ行 ................................................................................................................................................. 11 4.1.2. か行 ................................................................................................................................................. 11 4.1.3. さ行 ................................................................................................................................................. 12 4.1.4. た行 ................................................................................................................................................. 14 4.1.5. は行 ................................................................................................................................................. 15 4.1.6. ま行 ................................................................................................................................................. 16 4.1.7. や行 ................................................................................................................................................. 16 4.1.8. ら行 ................................................................................................................................................. 16 4.2. 値表現(VR) ............................................................................................................................................. 17 4.2.1. AE アプリケーションエンティティ (Application Entity) ..................................................... 18 4.2.2. AS 年齢列 (Age String) .............................................................................................................. 18 4.2.3. AT 属性タグ (Attribute Tag) ..................................................................................................... 18 4.2.4. CS コ－ド列 (Code String) ........................................................................................................ 18 4.2.5. DA 日付 (Date) ............................................................................................................................ 19 4.2.6. DS 10 進数列 (Decimal String) ................................................................................................. 19 4.2.7. DT 日時 (Date Time) .................................................................................................................. 20 4.2.8. FL 単精度浮動小数点 (Floating Point Single) ........................................................................ 21 4.2.9. FD 倍精度浮動小数点 (Floating Point Double) ...................................................................... 21 4.2.10. IS 整数列 (Integer String) ......................................................................................................... 21 4.2.11. LO 長列 (Long String) ............................................................................................................... 21 4.2.12. LT 長テキスト (Long Text) ........................................................................................................ 22 4.2.13. OB その他のバイト列 (Other Byte) ......................................................................................... 22 4.2.14. OD その他の倍精度浮動列 (Other Double) ............................................................................. 22 4.2.15. OF その他の浮動列 (Other Float) ............................................................................................ 22 4.2.16. OL その他のロング列 (Other Long) ......................................................................................... 23 4.2.17. OW その他のワード列 (Other Word) ....................................................................................... 23 4.2.18. PN 人名 (Person Name) ............................................................................................................ 23 4.2.19. SH 短列 (Short String) .............................................................................................................. 24 4.2.20. SL 符号付長整数 (Singed Long) ............................................................................................... 24 4.2.21. SQ 項目のシーケンス (Sequence of Items) ............................................................................. 24 4.2.22. SS 符号付き短整数 (Signed Short) ........................................................................................... 25 4.2.23. ST 短テキスト (Short Text) ....................................................................................................... 25 4.2.24. TM 時間 (Time) ........................................................................................................................... 25 4.2.25. UC 無制限文字 (Unlimited Characters) ................................................................................. 26 4.2.26. UI 固有識別子 (Unique Identifier (UID)) ............................................................................... 26 4.2.27. UL 符号なし長整数 (Unsigned Long) ...................................................................................... 26 © JAHIS 2019 2 4.2.28. UN 未知 (Unknown) .................................................................................................................. 27 4.2.29. UR 一般的なリソース識別子または、一般的なリソースロケータ(Universal Resource Identifier or Universal Resource Locator (URI/URL)) ......................................... 27 4.2.30. US 符号なし短整数 (Unsigned short) ...................................................................................... 27 4.2.31. UT 無制限テキスト (Unlimited Text) ...................................................................................... 28 4.2.32. 注意 ................................................................................................................................................. 28 4.3. データ要素タイプ .................................................................................................................................. 28 4.3.1. タイプ 1 必須データ要素 ............................................................................................................. 28 4.3.2. タイプ 1C 条件付きデータ要素 .................................................................................................. 29 4.3.3. タイプ 2 必須データ要素 ............................................................................................................. 29 4.3.4. タイプ 2C 条件付きデータ要素 .................................................................................................. 29 4.3.5. タイプ 3 任意選択データ要素 ..................................................................................................... 29 4.3.6. シーケンス内のデータ要素タイプ .............................................................................................. 30 4.4. シーケンス ............................................................................................................................................. 30 4.5. 属性マクロ ............................................................................................................................................. 31 5. 説明的な情報 ............................................................................................................................................... 33 5.1. 内視鏡検査の画像の取り扱い .............................................................................................................
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