JP4532868B2 - 放射線画像処理装置 - Google Patents
放射線画像処理装置 Download PDFInfo
- Publication number
- JP4532868B2 JP4532868B2 JP2003329381A JP2003329381A JP4532868B2 JP 4532868 B2 JP4532868 B2 JP 4532868B2 JP 2003329381 A JP2003329381 A JP 2003329381A JP 2003329381 A JP2003329381 A JP 2003329381A JP 4532868 B2 JP4532868 B2 JP 4532868B2
- Authority
- JP
- Japan
- Prior art keywords
- image
- reconstruction
- circuit
- projection
- reconstruction range
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000012545 processing Methods 0.000 title claims description 53
- 230000005855 radiation Effects 0.000 title claims description 11
- 238000003384 imaging method Methods 0.000 claims description 34
- 238000002591 computed tomography Methods 0.000 description 57
- 238000000034 method Methods 0.000 description 30
- 238000000605 extraction Methods 0.000 description 10
- 238000007781 pre-processing Methods 0.000 description 10
- 238000003745 diagnosis Methods 0.000 description 9
- 238000013170 computed tomography imaging Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000012546 transfer Methods 0.000 description 5
- 238000013480 data collection Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 3
- 238000012937 correction Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 238000013528 artificial neural network Methods 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000000513 principal component analysis Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/02—Devices for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computerised tomographs
- A61B6/032—Transmission computed tomography [CT]
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/46—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with special arrangements for interfacing with the operator or the patient
- A61B6/461—Displaying means of special interest
- A61B6/466—Displaying means of special interest adapted to display 3D data
-
- 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
- G06T11/005—Specific pre-processing for tomographic reconstruction, e.g. calibration, source positioning, rebinning, scatter correction, retrospective gating
-
- 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
- G06T2207/10072—Tomographic images
- G06T2207/10081—Computed x-ray tomography [CT]
-
- 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
- G06T2207/20—Special algorithmic details
- G06T2207/20112—Image segmentation details
- G06T2207/20132—Image cropping
-
- 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
- G06T2207/30—Subject of image; Context of image processing
- G06T2207/30004—Biomedical image processing
Description
(B)予め定められた固定の再構成範囲を用いてCT再構成を行う。
(C)特許文献1のように、投影画像群001を代表する投影画像003をスキャノグラフィとして利用し、撮影技師により再構成範囲004を指定しCT再構成を行う。
S(x,i)=(x・ci)/(‖x‖・‖ci‖)
11 回転装置
12 X線発生器
13 二次元X線センサ
14 データ収集回路
15 前処理回路
17 CPU
18 メインメモリ
19 操作パネル
20 画像処理回路
21 代表画像選択回路
22 照射領域抽出回路
23 再構成範囲決定回路
24 再構成回路
71 撮影方向取得回路
111 ディスプレイモニタ
141 再構成範囲変更回路
Claims (3)
- 放射線用二次元センサを用いて被検査体を異なる方向から撮影した複数の投影画像を基に画像を再構成する画像処理装置であって、前記複数の投影画像の中から選択した複数の代表画像の画像情報から前記放射線用二次元センサに放射線が到達した範囲である照射領域をそれぞれ抽出する照射領域抽出手段と、該照射領域抽出手段により抽出した前記複数の代表画像の照射領域の上下左右端の平均を定めてCT再構成範囲とする再構成範囲決定手段と、該再構成範囲決定手段により決定した前記CT再構成範囲に従って前記複数の投影画像を基にCT再構成を行いCT画像群を取得する再構成手段とを備えたことを特徴とする放射線画像処理装置。
- 前記投影画像の撮影方向を取得する撮影方向取得手段を備え、前記撮影方向に基づいて前記代表画像を選択することを特徴とする請求項1に記載の放射線画像処理装置。
- 撮影開始後の最初に得られる前記投影画像を前記代表画像として選択することを特徴とする請求項1に記載の放射線画像処理装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003329381A JP4532868B2 (ja) | 2003-09-22 | 2003-09-22 | 放射線画像処理装置 |
US10/946,431 US7263155B2 (en) | 2003-09-22 | 2004-09-21 | Radiography apparatus and radiation image processing method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003329381A JP4532868B2 (ja) | 2003-09-22 | 2003-09-22 | 放射線画像処理装置 |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2005095199A JP2005095199A (ja) | 2005-04-14 |
JP2005095199A5 JP2005095199A5 (ja) | 2006-10-12 |
JP4532868B2 true JP4532868B2 (ja) | 2010-08-25 |
Family
ID=34458633
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2003329381A Expired - Fee Related JP4532868B2 (ja) | 2003-09-22 | 2003-09-22 | 放射線画像処理装置 |
Country Status (2)
Country | Link |
---|---|
US (1) | US7263155B2 (ja) |
JP (1) | JP4532868B2 (ja) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011506607A (ja) * | 2007-12-17 | 2011-03-03 | ザリカス インコーポレイティッド | 免疫炎症性障害の処置のための治療法 |
JP5217044B2 (ja) * | 2008-01-10 | 2013-06-19 | 株式会社日立メディコ | 医用画像管理装置および医用画像診断装置 |
DE102010027878A1 (de) * | 2010-04-16 | 2011-10-20 | Siemens Aktiengesellschaft | Auswerteverfahren für eine Auswertung von medizinischen Bilddaten sowie eine medizinische Auswertevorrichtung hierzu |
JP5567944B2 (ja) * | 2010-08-31 | 2014-08-06 | 富士フイルム株式会社 | 放射線撮影装置および方法並びにプログラム |
JP7015155B2 (ja) * | 2017-11-29 | 2022-02-15 | キヤノン株式会社 | 放射線撮影システム及び放射線撮影方法、画像処理装置およびプログラム |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1119082A (ja) * | 1997-06-30 | 1999-01-26 | Toshiba Corp | 画像再構成装置 |
JP2000316840A (ja) * | 1999-05-10 | 2000-11-21 | Shimadzu Corp | X線ct装置 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2525648B2 (ja) | 1988-03-19 | 1996-08-21 | 富士写真フイルム株式会社 | 放射線照射野輪郭候補点正誤判定方法 |
FR2668829B1 (fr) * | 1990-11-05 | 1993-10-22 | Commissariat Energie Atomique | Dispositif et procede de controle non destructif a acquisition simultanee de donnees radiographiques et de donnees tomographiques. |
JP3239186B2 (ja) | 1991-06-18 | 2001-12-17 | コニカ株式会社 | 放射線画像の照射野領域抽出装置 |
US5933473A (en) * | 1996-04-04 | 1999-08-03 | Hitachi, Ltd. | Non-destructive inspection apparatus and inspection system using it |
US6345028B1 (en) * | 1997-11-03 | 2002-02-05 | Intertactile Technologies Corporation | Method for direct recording and playback of multiple data tracks and signals |
DE10022468A1 (de) * | 1999-05-10 | 2001-10-11 | Shimadzu Corp | Röntgen-CT-Vorrichtung |
JP3631095B2 (ja) * | 2000-04-17 | 2005-03-23 | キヤノン株式会社 | 照射野領域抽出装置、放射線撮影装置、放射線画像用システム、照射野領域抽出方法、及びコンピュータ可読記憶媒体 |
-
2003
- 2003-09-22 JP JP2003329381A patent/JP4532868B2/ja not_active Expired - Fee Related
-
2004
- 2004-09-21 US US10/946,431 patent/US7263155B2/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1119082A (ja) * | 1997-06-30 | 1999-01-26 | Toshiba Corp | 画像再構成装置 |
JP2000316840A (ja) * | 1999-05-10 | 2000-11-21 | Shimadzu Corp | X線ct装置 |
Also Published As
Publication number | Publication date |
---|---|
JP2005095199A (ja) | 2005-04-14 |
US20050111615A1 (en) | 2005-05-26 |
US7263155B2 (en) | 2007-08-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4928106B2 (ja) | Ct撮影装置 | |
US7050615B2 (en) | Temporal image comparison method | |
US20070071171A1 (en) | Image photographing apparatus and method | |
JP4110074B2 (ja) | 放射線画像処理装置、放射線画像処理方法、プログラム及びコンピュータ可読媒体 | |
JP5828649B2 (ja) | 画像処理装置、画像処理方法、及びコンピュータプログラム | |
JP2006043431A (ja) | ヘリカルマルチスライスctのための回復ノイズを伴うヘリカルウィンドミルアーチファクトを低減する方法 | |
JP5804340B2 (ja) | 放射線画像領域抽出装置、放射線画像領域抽出プログラム、放射線撮影装置および放射線画像領域抽出方法 | |
US9351695B2 (en) | Hybrid dual energy imaging and bone suppression processing | |
JP4416823B2 (ja) | 画像処理装置、画像処理方法、及びコンピュータプログラム | |
JP4532868B2 (ja) | 放射線画像処理装置 | |
US6728331B1 (en) | Method and system for trauma application of CT imaging | |
JP4752468B2 (ja) | 断面像再構成装置およびそれを用いたx線撮影装置 | |
JPH08280655A (ja) | 血管像の定量解析装置 | |
EP4123572A2 (en) | An apparatus and a method for x-ray image restoration | |
JP5992848B2 (ja) | 体動表示装置および方法 | |
EP3154026B1 (en) | Image processing apparatus, control method thereof, and computer program | |
JP7418171B2 (ja) | 画像処理装置、放射線撮影システム、画像処理方法及びプログラム | |
WO2009004571A1 (en) | Method and apparatus for image reconstruction | |
JP6615531B2 (ja) | X線コンピュータ断層撮影装置及び医用画像処理装置 | |
JP2002224100A (ja) | 医用診断装置 | |
JP7211172B2 (ja) | 動態画像解析システム及び動態画像処理装置 | |
JP2000325340A (ja) | 閾値決定方法および造影領域3次元データ作成方法 | |
KR102588307B1 (ko) | 임의의 raw CT image가 입력되었을 때 일관된 방향과 크기로 변환 가능한 인공지능 기반 장치 및 방법 | |
EP4242965A1 (en) | Optimal path finding based spinal center line extraction | |
JP2011030753A (ja) | 画像処理装置及び画像処理方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20060829 |
|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20060829 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20090714 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20090911 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20091102 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20091224 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20100202 |
|
RD01 | Notification of change of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7421 Effective date: 20100218 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20100401 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20100518 |
|
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20100611 |
|
R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130618 Year of fee payment: 3 |
|
LAPS | Cancellation because of no payment of annual fees |