JP6488249B2 - 血管情報取得装置、内視鏡システム及び血管情報取得方法 - Google Patents
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Description
図1は本発明に係る内視鏡システム10の外観斜視図である。
図2は内視鏡システム10の電気的構成を示すブロック図である。
次に、本発明に係る血管情報取得装置の実施形態について説明する。
次に、本発明に係る血管情報取得方法について説明する。
図5は本発明に係る血管情報取得方法の第1の実施形態を示すフローチャートである。
図6は本発明に係る血管情報取得方法の第2の実施形態を示すフローチャートである。尚、図5に示した第1の実施形態と共通するステップには同一のステップ番号を付し、その詳細な説明は省略する。
本実施形態では、注目層から非注目層に伸びる血管(第2血管)が存在する場合、第2の血管が存在する限り、注目層以外の全ての非注目層にわたって第2の血管を追跡して抽出するようにしたが、これに限らず、判定値を設定し、設定した判定値に基づいて非注目層に伸びる第2の血管の抽出(追跡)を停止するようにしてもよい。
10 内視鏡システム
11 内視鏡
12 光源装置
12a 光源操作部
13 プロセッサ装置
13a プロセッサ操作部
14 表示部
16 挿入部
16a 挿入部先端部
16b 湾曲部
16c 可撓管部
17 手元操作部
18 ユニバーサルコード
21 アングルノブ
22 操作ボタン
23 鉗子入口
25a コネクタ部
25b コネクタ部
31 光源制御部
32 光源ユニット
32a V−LED
32b B−LED
32c G−LED
32d R−LED
40 ライトガイド
42 照明レンズ
44 対物レンズ
45 撮像素子
46 内視鏡操作部
47 内視鏡制御部
48 ROM
61 プロセッサ制御部
62 ROM
65 画像処理部
66 表示制御部
67 記憶部
70 通常観察画像処理部
71 通常観察画像生成部
80 特殊観察画像処理部
81 画像取得部
82 第1の血管抽出部
83 第2の血管抽出部
84 血管特定部
85 特殊観察画像生成部
90 血管情報算出部
E1〜E7 端点
L1〜L4 第1層〜第4層
L1、L3、L4 非注目層
L2 注目層
S10〜S40 ステップ
Claims (14)
- 被検体の深度の異なる複数の層の画像をそれぞれ取得する画像取得部と、
前記複数の層のうちの一つの層を注目層として選択する注目層選択部と、
前記選択された注目層の画像を解析し、前記注目層の画像から第1の血管を抽出する第1の血管抽出部と、
前記選択された注目層から複数の層のうちの前記注目層以外の層である非注目層に伸びる第2の血管を特定する血管特定部と、
前記特定した第2の血管が存在する前記非注目層の画像を解析し、前記非注目層の画像から前記特定した第2の血管を抽出する第2の血管抽出部と、
を備えた血管情報取得装置。 - 前記第1の血管抽出部及び前記第2の血管抽出部によりそれぞれ抽出された前記第1の血管及び前記第2の血管の血管情報を算出する血管情報算出部を備えた請求項1に記載の血管情報取得装置。
- 前記第1の血管抽出部及び前記第2の血管抽出部によりそれぞれ抽出された前記第1の血管及び前記第2の血管を表示部に表示させる表示制御部を備えた請求項1又は2に記載の血管情報取得装置。
- 前記第2の血管抽出部は、前記第2の血管が前記非注目層と異なる非注目層にも伸びている場合、前記異なる非注目層でも前記第2の血管の抽出を行う請求項1から3のいずれか1項に記載の血管情報取得装置。
- 前記第2の血管抽出部は、判定値に基づいて前記非注目層に伸びる前記第2の血管の抽出を停止する請求項1から4のいずれか1項に記載の血管情報取得装置。
- 前記判定値は、前記第2の血管の血管情報に対応して決定される情報であり、
前記第2の血管抽出部は、前記第2の血管の血管情報が前記決定された情報を満たすか否かに応じて前記第2の血管の抽出を継続するか停止するかを判別する請求項5に記載の血管情報取得装置。 - 前記判定値は、血管の深さに対応する深度情報であり、
前記第2の血管抽出部は、前記第2の血管の深さが前記深度情報が示す深さに達すると、前記第2の血管の抽出を停止する請求項5に記載の血管情報取得装置。 - 前記血管情報算出部は、血管の本数、分岐数、太さ、長さ、間隔、深さ、蛇行度、面積、密度、血液濃度、酸素飽和度、動脈の割合、静脈の割合、走行パターン、及び血流量のうちの少なくとも2以上を含む複数の血管情報を算出する請求項2に記載の血管情報取得装置。
- 請求項1から8のいずれか1項に記載の血管情報取得装置と、
被検体の深度の異なる複数の層の画像の撮像にそれぞれ対応する複数の画像取得条件を有し、前記複数の画像取得条件のうちのいずれかの画像取得条件を設定する画像取得条件設定部と、
前記画像取得条件設定部により設定された画像取得条件下で前記被検体を撮像し、前記複数の層のうちの前記設定された画像取得条件に対応する深度の層の画像を取得する内視鏡と、を備え、
前記画像取得部は、前記内視鏡から前記被検体の深度の異なる複数の層の画像をそれぞれ取得する内視鏡システム。 - 前記画像取得条件設定部は、前記複数の画像取得条件のうちの1の画像取得条件を順次選択し、前記選択した画像取得条件を設定し、
前記内視鏡は、前記画像取得条件設定部により画像取得条件が設定される毎に前記被検体を撮像し、前記設定された画像取得条件に対応する深度の層の画像を順次取得する請求項9に記載の内視鏡システム。 - 前記画像取得条件設定部は、前記注目層選択部により前記注目層が選択されると、前記選択された注目層の画像に対応する画像取得条件を設定し、前記血管特定部により前記第2の血管が特定されると、前記注目層に隣接する非注目層の画像に対応する画像取得条件を設定し、
前記内視鏡は、前記画像取得条件設定部により画像取得条件が設定される毎に前記被検体を撮像し、前記設定された画像取得条件に対応する深度の層の画像を取得する請求項9に記載の内視鏡システム。 - 被検体の深度の異なる複数の層の画像をそれぞれ取得するステップと、
前記複数の層のうちの一つの層を注目層として選択するステップと、
前記選択された注目層の画像を解析し、前記注目層の画像から第1の血管を抽出するステップと、
前記選択された注目層から複数の層のうちの前記注目層以外の層である非注目層に伸びる第2の血管を特定するステップと、
前記特定した第2の血管が存在する前記非注目層の画像を解析し、前記非注目層の画像から前記特定した第2の血管を抽出するステップと、
を含む血管情報取得方法。 - 前記抽出された前記第1の血管及び前記第2の血管の血管情報を算出するステップを更に含む請求項12に記載の血管情報取得方法。
- 前記血管情報を算出するステップは、血管の本数、分岐数、太さ、長さ、間隔、粘膜を基準とした深さ、蛇行度、面積、密度、血液濃度、酸素飽和度、動脈の割合、静脈の割合、走行パターン、及び血流量のうちの少なくとも2以上を含む複数の血管情報を算出する請求項13に記載の血管情報取得方法。
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PCT/JP2016/085745 WO2017154290A1 (ja) | 2016-03-08 | 2016-12-01 | 血管情報取得装置、内視鏡システム及び血管情報取得方法 |
EP16893614.4A EP3427633A4 (en) | 2016-03-08 | 2016-12-01 | BLOOD VESSEL INFORMATION DETECTION DEVICE, ENDOSCOPY SYSTEM AND BLOOD VESSEL INFORMATION DETECTION METHOD |
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JP5405373B2 (ja) | 2010-03-26 | 2014-02-05 | 富士フイルム株式会社 | 電子内視鏡システム |
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WO2012147505A1 (ja) * | 2011-04-27 | 2012-11-01 | オリンパスメディカルシステムズ株式会社 | 医用画像処理装置及び医用画像処理方法 |
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JP6265627B2 (ja) * | 2013-05-23 | 2018-01-24 | オリンパス株式会社 | 内視鏡装置及び内視鏡装置の作動方法 |
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EP3357404A4 (en) * | 2015-09-29 | 2018-10-31 | FUJIFILM Corporation | Image processing device, endoscopic system, and image processing method |
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