JP2013013656A - 内視鏡システム、内視鏡システムのプロセッサ装置、及び画像表示方法 - Google Patents
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Abstract
【解決手段】広帯域光源の光路上にセットされた特殊観察用ロータリフィルタ32を回転させることにより、第1〜第4狭帯域光N1〜N4を順次被検体に照射する。被検体からの第1及び第4狭帯域光N1,N4の戻り光に基づいて生成される画像は、表層血管及び中深層血管が強調された血管強調画像となる。被検体からの第2〜第4狭帯域光N2〜N4の戻り光に基づいて生成される画像は、血中ヘモグロビンの酸素飽和度が画像化された酸素飽和度画像となる。これら生成された血管強調画像及び酸素飽和度画像は、モニタに並列表示される。
【選択図】図4
Description
12 プロセッサ装置
14 モニタ
30 広帯域光源
32,80 特殊観察用ロータリフィルタ
61 特殊画像生成部
62 血管強調部
63 位置合わせ部
64 血管強調画像生成部
65 酸素飽和度画像生成部
102〜104 第1〜第4半導体光源
Claims (11)
- 生体組織内の特定層にまで深達度を有する波長帯域の光のうちヘモグロビンの吸光係数が高い波長域を有する第1照明光と酸化ヘモグロビンと還元ヘモグロビンの吸光係数が異なる波長域を有する第2照明光とを含む光を、被検体内に照射する照射手段と、
被検体からの第1照明光の戻り光を撮像することにより第1画像信号を取得するととともに、被検体からの第2照明光の戻り光を撮像することにより第2画像信号を取得する画像信号取得手段と、
前記第1画像信号に基づいて第1被検体画像を生成するとともに、前記第2画像信号に基づいて第2被検体画像を生成する画像生成手段と、
前記第1及び第2被検体画像を表示する表示手段とを備えることを特徴とする内視鏡システム。 - 前記照射手段は、前記第1照明光と前記第2照明光を順次被検体内に照射する順次照射部を有し、
前記画像信号取得手段は、前記第1及び第2画像信号間で被検体像の位置合わせを行う位置合わせ部を有していることを特徴とする請求項1記載の内視鏡システム。 - 前記画像信号取得手段は、前記被検体の構造を強調する構造強調処理を前記第1及び第2画像信号に対して施す構造強調手段を更に備え、
前記位置合わせ部は、前記構造強調処理が施された第1及び第2画像信号間で前記被検体像の位置合わせを行うことを特徴とする請求項2記載の内視鏡システム。 - 前記被検体の構造には血管構造が含まれることを特徴とする請求項3記載の内視鏡システム。
- 前記順次照射部は、波長が広帯域に及ぶ広帯域光を発する広帯域光源と、前記広帯域光から前記第1照明光及び第2照明光を順次透過させるロータリフィルタとを備えることを特徴とする請求項2ないし4いずれか1項記載の内視鏡システム。
- 前記照射手段は、前記第1照明光及び前記第2照明光を発する複数の半導体光源であることを特徴とする請求項2ないし4いずれか1項記載の内視鏡システム。
- 前記第1照明光は、青色帯域に波長域を有する青色狭帯域光と緑色帯域に波長域を有する緑色狭帯域光を少なくとも有し、前記第2照明光は、前記酸化ヘモグロビンと還元ヘモグロビンの吸光係数の大小関係が互いに異なる2つの異吸収波長の狭帯域光と、前記酸化ヘモグロビンと還元ヘモグロビンの吸光係数が同じ1つ等吸収波長の狭帯域光とを少なくとも有し、
前記第1被検体画像は表層血管と中深層血管とが強調された血管強調画像であり、前記第2被検体画像は血中ヘモグロビンの酸化飽和度を画像化した酸化飽和度画像であることを特徴とする請求項1ないし6いずれか1項記載の内視鏡システム。 - 前記青色狭帯域光は410±10nmの波長域を有し、前記2つの異吸収波長の狭帯域光はそれぞれ440±10nmと470±10nmの波長域を有し、前記緑色狭帯域光及び前記等吸収波長の狭帯域光は540±10nmの波長域を有することを特徴とする請求項7記載の内視鏡システム。
- 前記第2照明光には、前記異吸収波長の狭帯域光として、650±10nmの波長域を有する狭帯域光と、910±10nmの波長域を有する狭帯域光を更に含むことを特徴とする請求項8記載の内視鏡システム。
- 生体組織内の特定層にまで深達度を有する波長帯域の光のうちヘモグロビンの吸光係数が高い波長域を有する第1照明光で照明された被検体を内視鏡装置で撮像して得られる第1画像信号を取得するととともに、酸化ヘモグロビンと還元ヘモグロビンの吸光係数が異なる波長域を有する第2照明光で照明された被検体を前記内視鏡装置で撮像して得られる第2画像信号を取得する画像信号取得手段と、
前記第1及び第2画像信号を受信する画像生成手段によって、前記第1画像信号に基づき第1被検体画像を生成するとともに、前記第2画像信号に基づき第2被検体画像を生成する画像生成手段とを備えることを特徴とする内視鏡システムのプロセッサ装置。 - 生体組織内の特定層にまで深達度を有する波長帯域の光のうちヘモグロビンの吸光係数が高い波長域を有する第1照明光で照明された被検体を内視鏡装置で撮像して得られる第1画像信号を取得するととともに、酸化ヘモグロビンと還元ヘモグロビンの吸光係数が異なる波長域を有する第2照明光で照明された被検体を前記内視鏡装置で撮像して得られる第2画像信号を取得し、
前記第1及び第2画像信号を受信する画像生成手段によって、前記第1画像信号に基づき第1被検体画像を生成するとともに、前記第2画像信号に基づき第2被検体画像を生成し、
前記第1及び第2被検体画像を表示手段に表示することを備えることを特徴とする画像表示方法。
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JP2011149994A JP5623348B2 (ja) | 2011-07-06 | 2011-07-06 | 内視鏡システム、内視鏡システムのプロセッサ装置、及び内視鏡システムの作動方法 |
CN201280033244.9A CN103648353B (zh) | 2011-07-06 | 2012-06-12 | 内窥镜系统、其处理器装置和图像显示方法 |
PCT/JP2012/064974 WO2013005533A1 (ja) | 2011-07-06 | 2012-06-12 | 内視鏡システム、内視鏡システムのプロセッサ装置、及び画像表示方法 |
EP12807713.8A EP2730209B1 (en) | 2011-07-06 | 2012-06-12 | Endoscope system |
US14/104,509 US20140100427A1 (en) | 2011-07-06 | 2013-12-12 | Endoscope system, processor device thereof, and image display method |
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EP2730209A4 (en) | 2015-04-08 |
JP5623348B2 (ja) | 2014-11-12 |
CN103648353B (zh) | 2016-03-30 |
EP2730209A1 (en) | 2014-05-14 |
EP2730209B1 (en) | 2020-08-12 |
WO2013005533A1 (ja) | 2013-01-10 |
CN103648353A (zh) | 2014-03-19 |
US20140100427A1 (en) | 2014-04-10 |
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