JP2021000437A - 3d透視インジケータ、3d透視インジケータの生成方法、およびそれらの応用 - Google Patents
3d透視インジケータ、3d透視インジケータの生成方法、およびそれらの応用 Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 82
- 238000002059 diagnostic imaging Methods 0.000 claims description 68
- 238000003860 storage Methods 0.000 abstract description 10
- 238000002594 fluoroscopy Methods 0.000 description 15
- 230000008859 change Effects 0.000 description 7
- 238000002591 computed tomography Methods 0.000 description 6
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- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
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- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
- A61B5/055—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
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- A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computed tomography [CT]
- A61B6/037—Emission tomography
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- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/04—Positioning of patients; Tiltable beds or the like
- A61B6/0407—Supports, e.g. tables or beds, for the body or parts of the body
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- A61B6/46—Arrangements for interfacing with the operator or the patient
- A61B6/467—Arrangements for interfacing with the operator or the patient characterised by special input means
- A61B6/469—Arrangements for interfacing with the operator or the patient characterised by special input means for selecting a region of interest [ROI]
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Abstract
Description
200 走査範囲を制御する方法
600 走査範囲を制御する装置
610 表示ユニット
620 制御ユニット
630 患者構造モデルユニット
L1 上輪郭線
L2 下輪郭線
S1 上境界基準点
S2 上境界基準点
S3 上境界補助点
S4 上境界補助点
E1 下境界基準点
E2 下境界基準点
E3 下境界補助点
E4 下境界補助点
S3−S4 上境界補助点接続線
E3−E4 下境界補助点接続線
S3−E3 同一側の補助点S3、E3の間の接続線
S4−E4 同一側の補助点S4、E4の間の接続線
Claims (10)
- 医用イメージングシステムにおいて3D透視インジケータを生成するための方法(100)であって、
前記医用イメージングシステムの座標系空間に、走査方向に垂直な上境界平面および下境界平面と、当該上境界平面および下境界平面に垂直な補助平面とを生成することであって、当該補助平面が患者の走査すべき部位の上方に位置するものである、生成することと、
前記患者の深度画像に基づいて生成されたポイントクラウドにおいて、前記上境界平面と交差する上輪郭線(L1)および前記下境界平面と交差する下輪郭線(L2)を識別することと、を含み、
前記3D透視インジケータが、前記上輪郭線(L1)および下輪郭線(L2)と、前記上境界平面および下境界平面と、前記補助平面とを含む、方法(100)。 - 前記ポイントクラウド中から患者構造モデルを抽出することを更に含み、前記上輪郭線(L1)および下輪郭線(L2)が、それぞれ当該患者構造モデルと前記上境界平面および下境界平面との交線である、請求項1に記載の方法(100)。
- 前記医用イメージングシステムの座標系空間に、前記補助平面に平行な主基準平面を生成することを更に含み、前記患者構造モデルが、前記主基準平面上にあるとともに、当該主基準平面と共に走査すべき部分の形状を画定している、請求項2に記載の方法(100)。
- 走査ベッドの最も高い位置の表面に、前記主基準平面を生成する請求項3に記載の方法(100)。
- 前記上輪郭線(L1)および/または下輪郭線(L2)が、上境界基準点(S1、S2)および/または下境界基準点(E1、E2)で前記主基準平面と交差し、前記上輪郭線(L1)および/または前記下輪郭線(L2)が前記患者の走査すべき部位の輪郭に一致している請求項3に記載の方法(100)。
- 前記上境界基準点(S1、S2)および/または下境界基準点(E1、E2)が、前記患者構造モデルの横に位置する2つの基準点であり、それら2つの基準点の距離が前記患者構造モデルの最大幅よりも大きい請求項5に記載の方法(100)。
- 前記2つの上境界基準点(S1、S2)および/または2つの下境界基準点(E1、E2)を前記補助平面上に正投影して、2つの上境界補助点(S3、S4)および/または2つの下境界補助点(E3、E4)を得ることを更に含む、請求項6に記載の方法(100)。
- 前記上境界平面および下境界平面が、走査方向に別々に移動する、又は同時に移動することができる請求項1〜7のいずれか1項に記載の方法(100)。
- 前記上境界平面および/または前記下境界平面が走査方向に移動する場合、前記上輪郭線(L1)および/または前記下輪郭線(L2)が、前記患者の走査すべき部位に従ってリアルタイムで変化する請求項8に記載の方法(100)。
- 前記リアルタイムの変化は、連続的である請求項9に記載の方法(100)。
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CN201910469864.0A CN112006711A (zh) | 2019-05-31 | 2019-05-31 | 3d透视指示器及其生成方法和应用 |
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USD926208S1 (en) | 2019-07-12 | 2021-07-27 | GE Precision Healthcare LLC | Display screen with graphical user interface |
JP7412952B2 (ja) * | 2019-10-16 | 2024-01-15 | キヤノンメディカルシステムズ株式会社 | 医用画像診断装置 |
JP2023525535A (ja) * | 2020-05-11 | 2023-06-16 | コグネックス・コーポレイション | 3次元画像内の表面特徴を識別する方法及び装置 |
CN113217106B (zh) * | 2021-05-28 | 2024-01-12 | 成都建工集团有限公司 | 一种斜切式隧道洞门的三维建模方法 |
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