JP2006087921A - 対象領域情報を用いて連続的に多重解像度3次元画像を再構成する方法およびシステム - Google Patents
対象領域情報を用いて連続的に多重解像度3次元画像を再構成する方法およびシステム Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000003384 imaging method Methods 0.000 claims description 28
- 238000012545 processing Methods 0.000 claims description 15
- 210000003484 anatomy Anatomy 0.000 claims description 8
- 238000012937 correction Methods 0.000 claims description 5
- 230000015654 memory Effects 0.000 description 9
- 238000002594 fluoroscopy Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000002059 diagnostic imaging Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000002591 computed tomography Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000002603 single-photon emission computed tomography Methods 0.000 description 2
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 238000013152 interventional procedure Methods 0.000 description 1
- 238000002697 interventional radiology Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003325 tomography Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T11/00—2D [Two Dimensional] image generation
- G06T11/003—Reconstruction from projections, e.g. tomography
- G06T11/006—Inverse problem, transformation from projection-space into object-space, e.g. transform methods, back-projection, algebraic methods
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2211/00—Image generation
- G06T2211/40—Computed tomography
- G06T2211/428—Real-time
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Abstract
【解決手段】本発明による方法およびシステムを用いると、連続的に多重解像度3次元画像を再構成する技術により、高画質の3次元X線透視画像の表示にかかる時間を大幅に短縮することができる。さらに、連続的画像再構成を集中して実施すべき1つまたは2つ以上の対象領域を手動または自動で選択することにより、対象領域(1つまたは複数)に対する高画質の3D画像が、画像データ取得後すぐに得られる。
【選択図】図2
Description
このとき、tは、時間長さに比例する因数であり、k1およびk2はそれぞれ、画像フィールドビュー、ならびに対象ボリュームの立体領域および/または球体領域に対する、対象領域の辺および/または半径である。
110 イメージングモダリティ
120 画像プロセッサ
130 メモリ
140 表示装置
150 患者
210 3D画像
220 3D画像
230 3D画像
310 低解像度画像
315 第1の対象領域
320 第2の中間解像度画像
325 第2の対象領域
330 高解像度画像
500 解像度の低いほうの画像
510 残りの画像領域
520 対象領域
530 対象領域
Claims (10)
- 複数枚の入力2次元画像を取得するステップと、
前記入力画像の少なくとも1枚に基づいて、それぞれが3次元画像データを含む複数のボクセルを含む最初の3次元画像(310)を算出するステップと、
前記ボクセルのサブセット(315、325)に含まれる前記3次元画像データを再構成して、前記ボクセルサブセット(315、325)に対応する表示画像領域に、解像度を高めた3次元画像を生成するステップと、
を含む、連続的に多重解像度3D画像を再構成する方法。 - 前記ボクセルのサブセット(315、325)が対象領域を含む、請求項1記載の方法。
- 前記最初の画像の中央部分、解剖学的構造集合部分、およびS字歪み補正部分の少なくとも1つまたは2つ以上に基づいて、前記ボクセルサブセット(315、325)を自動的に決定するステップをさらに含む、請求項1記載の方法。
- 前記ボクセルサブセット(315、325)のサイズを連続的に拡大するステップをさらに含む、請求項1記載の方法。
- 複数枚の入力2次元画像を取得するイメージングモダリティ(110)と、
前記入力画像の少なくとも1枚に基づいて、それぞれが3次元画像データを含む複数のボクセルを含む最初の3次元画像(310)を算出するステップ、および、前記ボクセルのサブセット(315、325)内の前記3次元画像データを再構成して、前記ボクセルサブセット(315、325)に対応する表示画像領域に、解像度を高めた3次元画像を生成するステップを実行する画像処理ユニット(120)と
を含む連続的に多重解像度3D画像を再構成するシステム。 - 前記ボクセルのサブセット(315、325)が対象領域を含む、請求項5記載のシステム。
- 前記画像処理ユニット(120)が、前記最初の画像の中央部分、解剖学的構造集合部分、およびS字歪み補正部分の少なくとも1つまたは2つ以上に基づいて、前記ボクセルサブセット(315、325)を自動的に決定する、請求項5記載のシステム。
- 前記画像処理ユニット(120)が、前記ボクセルサブセット(315、325)のサイズを連続的に拡大する、請求項5記載のシステム。
- 複数枚の入力2次元画像を取得するステップと、
前記入力画像の少なくとも1枚に基づいて、3次元画像(310)を算出するステップと、
少なくとも1枚の他の入力画像に基づいて、ボクセル単位で3次元画像(310)を更新するステップと、
前記3次元画像(310)を表示するステップと
を含む、連続的にX線透視画像を再構成する方法。 - 自動的に対象領域を選択するステップをさらに含み、前記更新ステップが、前記対象領域に対応する1セットのボクセル(315、325)から前記3次元画像の残りの部分へと連続的に展開される、請求項9記載の方法。
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US10/945,770 US7734119B2 (en) | 2004-09-21 | 2004-09-21 | Method and system for progressive multi-resolution three-dimensional image reconstruction using region of interest information |
US10/945,770 | 2004-09-21 |
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JP2006087921A true JP2006087921A (ja) | 2006-04-06 |
JP2006087921A5 JP2006087921A5 (ja) | 2008-10-30 |
JP4864397B2 JP4864397B2 (ja) | 2012-02-01 |
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US (1) | US7734119B2 (ja) |
EP (1) | EP1638051B1 (ja) |
JP (1) | JP4864397B2 (ja) |
CN (1) | CN1753029B (ja) |
DE (1) | DE602005005127T2 (ja) |
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JP4864397B2 (ja) | 2012-02-01 |
EP1638051B1 (en) | 2008-03-05 |
CN1753029A (zh) | 2006-03-29 |
DE602005005127T2 (de) | 2009-02-26 |
EP1638051A2 (en) | 2006-03-22 |
CN1753029B (zh) | 2010-06-23 |
US20060061570A1 (en) | 2006-03-23 |
DE602005005127D1 (de) | 2008-04-17 |
EP1638051A3 (en) | 2006-07-19 |
US7734119B2 (en) | 2010-06-08 |
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