JP6356246B2 - 生体組織診断装置及び生体組織診断装置の作動方法 - Google Patents
生体組織診断装置及び生体組織診断装置の作動方法 Download PDFInfo
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Description
Claims (15)
- 映像造影剤が注入された生体内の少なくとも一つの対象組織に造影剤励起エネルギーをそれぞれ照射する少なくとも一つの照光部;
前記少なくとも一つの対象組織からそれぞれ放散されるエネルギーを撮像する少なくとも一つの検査部;及び
前記少なくとも一つの検査部によって撮像された映像データに基づいて前記少なくとも一つの対象組織の管または灌流の異常有無を判断する判断部;を含み、
前記各検査部は、
前記映像造影剤から放散されるエネルギーの近赤外線領域を通過させるフィルター部材;及び
前記フィルター部材を通過するエネルギーの近赤外線領域を撮像する撮像部材;を含み、
前記検査部は、一つ以上の生体組織を独立的に検査するために同一の個数で複数備えられており、
前記各検査部に含まれた前記撮像部材は、制御部によって稼動時間が制御されることを特徴とする、生体組織診断装置。 - 前記判断部は、
前記撮像された映像データの経時的変化をパターン化するパターン処理部;
パターン化されたデータに基づいて少なくとも一つの特性値を算出する特性値演算部;及び
前記少なくとも一つの特性値または二つ以上の前記特性値の組み合わせに基づいて前記少なくとも一つの対象組織の管または灌流の異常有無を診断する診断部;を含むことを特徴とする、請求項1に記載の生体組織診断装置。 - 前記対象組織は複数であり、
前記診断部は、各対象組織別の前記特性値の比較を通じて異常対象組織をさらに診断することを特徴とする、請求項2に記載の生体組織診断装置。 - 前記異常対象組織の診断時、前記判断部は、前記各対象組織別の特性値の予め設定された正常分布範囲から逸脱する特性値に対応する対象組織を異常対象組織と診断することを
特徴とする、請求項3に記載の生体組織診断装置。 - 前記各対象組織別の特性値が、正常群または異常群の管や灌流でそれぞれ取得される場合、前記正常群または異常群に含まれた一つ以上の特性値の組み合わせ値は、該当の各群を80%以上の敏感度及び特異度で区分することを特徴とする、請求項3に記載の生体組織診断装置。
- 前記少なくとも一つの特性値は、前記映像データから得られる前記対象組織での特定物理値の経時的変化から得られ、
前記少なくとも一つの特性値は、前記物理値の初期検出時点から前記物理値が最高になるときまでの時間、前記物理値が一定時間内に増加または減少する勾配、前記物理値が基準値以上に維持される時間、前記物理値の初期検出時点から前記物理値が基準勾配以上に上昇する前までの時間、及び前記物理値が前記基準値未満に低下しはじめる時点から前記物理値の最終検出時点までの時間のうち少なくとも一つを含むことを特徴とする、請求項2に記載の生体組織診断装置。 - 前記映像造影剤は、インドシアニングリーン(ICG;Indocyanine Green)色素であることを特徴とする、請求項1に記載の生体組織診断装置。
- 前記撮像部材の稼動時間は、撮像開始時点から、前記映像造影剤から近赤外線放散が測定されなくなるときまでの時間以内であり、
前記撮像部材は、設定時間間隔で撮像するように制御されることを特徴とする、請求項1に記載の生体組織診断装置。 - 前記少なくとも一つの対象組織の管または灌流の異常を判断する前記判断部は、判断された管または灌流の異常有無診断結果を一つ以上の数値や灌流マップで提示することを特徴とする、請求項1に記載の生体組織診断装置。
- 外部からの光を遮断し、映像の明暗を明確にするための暗室をさらに含み、
前記各照光部は、前記造影剤励起エネルギーを照射する照明部材を含み、
前記暗室は、前記照明部材及び前記検査部を収容することを特徴とする、請求項1に記載の生体組織診断装置。 - 少なくとも一つの照光部と少なくとも一つの検査部と判断部とを含む生体組織診断装置の作動方法であって、
前記少なくとも一つの照光部が造影剤励起エネルギーを出射するステップ;
前記少なくとも一つの検査部が前記造影剤励起エネルギーに由来するエネルギーを撮像するステップ;及び
前記判断部が前記少なくとも一つの検査部によって撮像された映像データに基づいて少なくとも一つの対象組織の管または灌流の異常有無を判断するステップ;を含み、
前記各検査部は、
映像造影剤から放散されるエネルギーの近赤外線領域を通過させるフィルター部材;及び
前記フィルター部材を通過するエネルギーの近赤外線領域を撮像する撮像部材;を含み、
前記検査部は、一つ以上の生体組織を独立的に検査するために同一の個数で複数備えられており、
前記各検査部に含まれた前記撮像部材は、制御部によって稼動時間が制御されることを特徴とする、生体組織診断装置の作動方法。 - 前記少なくとも一つの対象組織の管または灌流の異常有無を判断するステップは、
前記撮像された映像データの経時的変化をパターン化するステップ;
パターン化されたデータに基づいて少なくとも一つの特性値を算出するステップ;及び
前記少なくとも一つの特性値または二つ以上の前記特性値の組み合わせに基づいて前記少なくとも一つの対象組織の管または灌流の異常有無を診断するステップ;を含むことを特徴とする、請求項11に記載の生体組織診断装置の作動方法。 - 前記対象組織は複数で、
前記少なくとも一つの対象組織の管または灌流の異常有無を判断するステップは、
各対象組織別の前記特性値の比較を通じて異常対象組織を診断するステップをさらに含むことを特徴とする、請求項12に記載の生体組織診断装置の作動方法。 - 前記異常対象組織を診断するステップにおいて、前記判断部は、前記各対象組織別の特性値の予め設定された正常分布範囲から逸脱する特性値に対応する対象組織を異常対象組織と診断することを特徴とする、請求項13に記載の生体組織診断装置の作動方法。
- 前記少なくとも一つの特性値は、前記映像データから得られる前記対象組織での特定物理値の経時的変化から得られ、
前記少なくとも一つの特性値は、前記物理値の最初検出時点から前記物理値が最高になるときまでの時間、前記物理値が基準値以上に維持される時間、前記物理値の最初検出時点から前記物理値が基準勾配以上に上昇する前までの時間、及び前記物理値が前記基準値未満に低下しはじめる時点から前記物理値の最後検出時点までの時間のうち少なくとも一つを含むことを特徴とする、請求項12に記載の生体組織診断装置の作動方法。
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US7474906B2 (en) * | 2001-05-22 | 2009-01-06 | Alfred E. Mann Institute For Biomedical Engineering At The University Of Southern California | Method for dye injection for the transcutaneous measurement of cardiac output |
KR100818669B1 (ko) * | 2007-03-09 | 2008-04-02 | 한국과학기술원 | 하지 관류정도 측정장치 |
KR100973183B1 (ko) * | 2008-10-29 | 2010-07-30 | 한국과학기술원 | 관류 정도 분석 장치 및 방법 |
WO2011012646A2 (en) * | 2009-07-28 | 2011-02-03 | F. Hoffmann-La Roche Ag | Non-invasive in vivo optical imaging method |
KR101166165B1 (ko) * | 2011-01-19 | 2012-07-18 | 주식회사 뷰웍스 | Icg 형광 동역학 분석을 이용한 뇌혈류 분석 장치 및 방법 |
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2014
- 2014-07-16 KR KR20140089525A patent/KR20150024766A/ko not_active Application Discontinuation
- 2014-08-21 EP EP14841148.1A patent/EP3040026A4/en not_active Withdrawn
- 2014-08-21 US US14/915,387 patent/US20160206218A1/en not_active Abandoned
- 2014-08-21 JP JP2016538844A patent/JP6356246B2/ja active Active
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KR20150024766A (ko) | 2015-03-09 |
US20160206218A1 (en) | 2016-07-21 |
EP3040026A1 (en) | 2016-07-06 |
JP2016531700A (ja) | 2016-10-13 |
EP3040026A4 (en) | 2016-09-21 |
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