JP4610304B2 - X線ct装置 - Google Patents
X線ct装置 Download PDFInfo
- Publication number
- JP4610304B2 JP4610304B2 JP2004322442A JP2004322442A JP4610304B2 JP 4610304 B2 JP4610304 B2 JP 4610304B2 JP 2004322442 A JP2004322442 A JP 2004322442A JP 2004322442 A JP2004322442 A JP 2004322442A JP 4610304 B2 JP4610304 B2 JP 4610304B2
- Authority
- JP
- Japan
- Prior art keywords
- ray
- image
- center axis
- rotation center
- phantom
- 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
- 238000012937 correction Methods 0.000 claims description 82
- 238000004364 calculation method Methods 0.000 claims description 78
- 238000012545 processing Methods 0.000 claims description 25
- 238000013461 design Methods 0.000 claims description 21
- 238000006073 displacement reaction Methods 0.000 claims description 9
- 230000001678 irradiating effect Effects 0.000 claims 2
- 238000000034 method Methods 0.000 description 49
- 238000003384 imaging method Methods 0.000 description 40
- 230000005540 biological transmission Effects 0.000 description 23
- 238000010586 diagram Methods 0.000 description 16
- 238000001914 filtration Methods 0.000 description 13
- 238000007781 pre-processing Methods 0.000 description 12
- 238000010521 absorption reaction Methods 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 238000003860 storage Methods 0.000 description 5
- 238000009826 distribution Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 210000001015 abdomen Anatomy 0.000 description 2
- 238000004422 calculation algorithm Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 241001669679 Eleotris Species 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Classifications
-
- 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
- A61B6/58—Testing, adjusting or calibrating thereof
- A61B6/582—Calibration
- A61B6/583—Calibration using calibration phantoms
- A61B6/584—Calibration using calibration phantoms determining position of components of the apparatus or device using images of the phantom
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medical Informatics (AREA)
- Engineering & Computer Science (AREA)
- Radiology & Medical Imaging (AREA)
- Biomedical Technology (AREA)
- Biophysics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
- Pathology (AREA)
- Physics & Mathematics (AREA)
- High Energy & Nuclear Physics (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Apparatus For Radiation Diagnosis (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004322442A JP4610304B2 (ja) | 2004-11-05 | 2004-11-05 | X線ct装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004322442A JP4610304B2 (ja) | 2004-11-05 | 2004-11-05 | X線ct装置 |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2006130060A JP2006130060A (ja) | 2006-05-25 |
JP2006130060A5 JP2006130060A5 (zh) | 2007-12-13 |
JP4610304B2 true JP4610304B2 (ja) | 2011-01-12 |
Family
ID=36724099
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004322442A Expired - Fee Related JP4610304B2 (ja) | 2004-11-05 | 2004-11-05 | X線ct装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP4610304B2 (zh) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007130278A (ja) * | 2005-11-11 | 2007-05-31 | Ge Medical Systems Global Technology Co Llc | X線ct装置 |
EP2074383B1 (en) * | 2006-09-25 | 2016-05-11 | Mazor Robotics Ltd. | C-arm computerized tomography |
JP5210726B2 (ja) * | 2008-06-24 | 2013-06-12 | 株式会社東芝 | X線ct装置 |
WO2010018537A1 (en) * | 2008-08-13 | 2010-02-18 | Koninklijke Philips Electronics N. V. | Calibration method for ring artifact correction in non-ideal isocentric 3d rotational x-ray scanner systems using a calibration phantom based rotation center finding algorithm |
JP5537226B2 (ja) * | 2010-03-31 | 2014-07-02 | 株式会社日立メディコ | 放射線撮像装置 |
JP7242288B2 (ja) * | 2018-12-25 | 2023-03-20 | キヤノンメディカルシステムズ株式会社 | 医用画像診断装置及びモデル学習装置 |
CN116831607B (zh) * | 2023-09-01 | 2023-12-01 | 赛诺威盛科技(北京)股份有限公司 | 用于医疗影像设备的校正装置、校正方法和医疗影像设备 |
CN117679060B (zh) * | 2024-02-01 | 2024-06-21 | 赛诺威盛科技(北京)股份有限公司 | 基于薄圆盘模体的球管机械位置校正方法及系统 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09173330A (ja) * | 1995-12-22 | 1997-07-08 | Hitachi Medical Corp | X線断層撮影装置 |
JP2000201918A (ja) * | 1999-01-11 | 2000-07-25 | Hitachi Medical Corp | X線ct装置及びx線像のx線撮影方法並びにファントム |
JP2002336237A (ja) * | 2001-05-18 | 2002-11-26 | Morita Mfg Co Ltd | X線画像補正ファントム、これを用いたx線画像補正方法及びx線ct撮影装置 |
-
2004
- 2004-11-05 JP JP2004322442A patent/JP4610304B2/ja not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09173330A (ja) * | 1995-12-22 | 1997-07-08 | Hitachi Medical Corp | X線断層撮影装置 |
JP2000201918A (ja) * | 1999-01-11 | 2000-07-25 | Hitachi Medical Corp | X線ct装置及びx線像のx線撮影方法並びにファントム |
JP2002336237A (ja) * | 2001-05-18 | 2002-11-26 | Morita Mfg Co Ltd | X線画像補正ファントム、これを用いたx線画像補正方法及びx線ct撮影装置 |
Also Published As
Publication number | Publication date |
---|---|
JP2006130060A (ja) | 2006-05-25 |
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