JP2006055645A - 遺構空間情報を用いて三次元x線画像再生における金属遺構を低減する方法及び装置 - Google Patents
遺構空間情報を用いて三次元x線画像再生における金属遺構を低減する方法及び装置 Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 34
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- 238000012545 processing Methods 0.000 description 7
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- 238000003384 imaging method Methods 0.000 description 4
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- 238000011960 computer-aided design Methods 0.000 description 3
- 238000002594 fluoroscopy Methods 0.000 description 3
- 210000003484 anatomy Anatomy 0.000 description 2
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- 238000004458 analytical method Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000002405 diagnostic procedure Methods 0.000 description 1
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- 238000009499 grossing Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
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- 210000003127 knee Anatomy 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000399 orthopedic effect Effects 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 210000000278 spinal cord Anatomy 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
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- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computed tomography [CT]
- A61B6/032—Transmission computed tomography [CT]
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- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/52—Devices using data or image processing specially adapted for radiation diagnosis
- A61B6/5258—Devices using data or image processing specially adapted for radiation diagnosis involving detection or reduction of artifacts or noise
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- G—PHYSICS
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- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T5/00—Image enhancement or restoration
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2200/00—Indexing scheme for image data processing or generation, in general
- G06T2200/04—Indexing scheme for image data processing or generation, in general involving 3D image data
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- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10072—Tomographic images
- G06T2207/10081—Computed x-ray tomography [CT]
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10116—X-ray image
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Abstract
【解決手段】少なくとも一つの未較正画像(例えば、X線や透視画像)を収集し(400,514)、該未較正画像を較正し(412,516)、較正済み透視画像を形成する。受診者−送信器変換は、少なくとも一つの較正済み画像を少なくとも用いて計算する(414,518)。再生空間は、少なくとも受診者−送信器変換を用いて形成する(416,520)。少なくとも一つの較正済み透視画像と受診者−送信器変換と再生空間のうちの少なくとも二つを合成し(418,524)、少なくとも一つの表示画像を形成することができる。この画像は、そこで例えば表示装置(218,318)を用いて表示する(420,526)ことができる。
【選択図】図1
Description
105 X線
110 C形アーム
112 被写体
120 X線センサ
130 X線検出器
140 EMセンサ
150 EM送信器
160 画像プロセッサ
170 追尾モジュール
180 位置決め装置
190 出力装置
210 画像再生装置
212 誘導案内ホストコンピュータ
214 ローカルネットワーク
216 三次元再生コンピュータ
218 ディスプレイ
Claims (10)
- X線画像再生を実行する方法(400,500)であって、
少なくとも一つの未較正画像を収集する(410,154)ステップと、
前記少なくとも一つの未較正画像を較正し(412,516)、少なくとも一つの較正画像を形成するステップとを含む、方法。 - 前記少なくとも一つの未較正画像の較正(412,516)ステップは、少なくとも一つの遺構の位置特定を含む、請求項1記載の方法(400,500)。
- 前記少なくとも一つの画像を表示する(420,526)ステップを含む、請求項1記載の方法(400,500)。
- 受診者−送信器変換を計算するステップを含む、請求項1記載の方法(400,500)。
- 前記少なくとも一つの未較正画像を少なくとも用い、前記受診者−送信器変換を計算する(414,518)ステップを含む、請求項4記載の方法(400,500)。
- 再生空間を形成する(416,520)ステップを含む、請求項4記載の方法(400,500)。
- 前記少なくとも一つの未較正画像を少なくとも用いて前記再生空間を形成する(416,520)ステップを含む、請求項6記載の方法。
- 前記少なくとも一つの較正済み画像と前記受診者−送信器変換と前記再生空間のうちの少なくとも二つを合成する(418,524)ステップを含む、請求項7記載の方法(400,500)。
- 三次元X線再生における金属遺構を低減する方法(400,500)であって、
少なくとも一つの未較正画像を収集する(410,514)ステップと、
前記少なくとも一つの未較正画像を較正し(412,516)、少なくとも一つの較正済み画像を形成するステップと、
前記少なくとも一つの較正済み画像を用い受診者−送信器変換を計算する(414,518)ステップと、
前記少なくとも受診者−送信器変換を用い再生空間を形成する(416,520)ステップと、
前記少なくとも一つの較正済み画像と前記受診者−送信器変換と前記再生空間のうちの少なくとも二つを合成し(418,524)、少なくとも一つの表示画像を形成するステップと、
前記少なくとも一つの表示画像を表示する(420,526)ステップとを含む、方法。 - 前記少なくとも一つの未較正画像は少なくとも一つの未較正透視画像を含み、前記少なくとも一つの較正済み画像は少なくとも一つの較正済み透視画像を含む、請求項9記載の方法(400,500)。
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US10/922,765 US7369695B2 (en) | 2004-08-20 | 2004-08-20 | Method and apparatus for metal artifact reduction in 3D X-ray image reconstruction using artifact spatial information |
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US (1) | US7369695B2 (ja) |
EP (1) | EP1627601B1 (ja) |
JP (1) | JP2006055645A (ja) |
KR (1) | KR101160696B1 (ja) |
CN (1) | CN1766930B (ja) |
AT (1) | ATE398966T1 (ja) |
DE (1) | DE602005007661D1 (ja) |
Cited By (3)
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JP2007296358A (ja) * | 2006-05-05 | 2007-11-15 | Siemens Ag | 医用画像の作成方法および医用撮像システム |
JP2015503389A (ja) * | 2011-12-27 | 2015-02-02 | コーニンクレッカ フィリップス エヌ ヴェ | 3dスキャンからのem場発生器によるアーティファクトの除去 |
JP2021513876A (ja) * | 2018-02-16 | 2021-06-03 | ターナー イノベーションズ,エルエルシー. | 3次元放射線画像再構成 |
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US20060039591A1 (en) | 2006-02-23 |
CN1766930B (zh) | 2013-05-29 |
CN1766930A (zh) | 2006-05-03 |
EP1627601B1 (en) | 2008-06-25 |
DE602005007661D1 (de) | 2008-08-07 |
EP1627601A1 (en) | 2006-02-22 |
US7369695B2 (en) | 2008-05-06 |
KR20060053091A (ko) | 2006-05-19 |
ATE398966T1 (de) | 2008-07-15 |
KR101160696B1 (ko) | 2012-06-28 |
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