DE60036355T2 - Verfahren und Gerät zur Optimisierung der Bildqualität vom Computertomographen mit optimaler Datenerfassung - Google Patents
Verfahren und Gerät zur Optimisierung der Bildqualität vom Computertomographen mit optimaler Datenerfassung Download PDFInfo
- Publication number
- DE60036355T2 DE60036355T2 DE60036355T DE60036355T DE60036355T2 DE 60036355 T2 DE60036355 T2 DE 60036355T2 DE 60036355 T DE60036355 T DE 60036355T DE 60036355 T DE60036355 T DE 60036355T DE 60036355 T2 DE60036355 T2 DE 60036355T2
- Authority
- DE
- Germany
- Prior art keywords
- input signal
- scan
- scout
- data
- ray
- 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 - Lifetime
Links
- 238000000034 method Methods 0.000 title claims description 19
- 238000003384 imaging method Methods 0.000 claims description 23
- 238000002591 computed tomography Methods 0.000 claims description 14
- 238000013170 computed tomography imaging Methods 0.000 claims description 2
- 239000010410 layer Substances 0.000 description 7
- 238000005259 measurement Methods 0.000 description 4
- 230000002238 attenuated effect Effects 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002996 emotional effect Effects 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
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
- A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computed tomography [CT]
- A61B6/032—Transmission computed tomography [CT]
-
- 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
- A61B6/40—Arrangements for generating radiation specially adapted for radiation diagnosis
- A61B6/4064—Arrangements for generating radiation specially adapted for radiation diagnosis specially adapted for producing a particular type of beam
- A61B6/4085—Cone-beams
-
- 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
- A61B6/48—Diagnostic techniques
- A61B6/488—Diagnostic techniques involving pre-scan acquisition
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Medical Informatics (AREA)
- Optics & Photonics (AREA)
- Biomedical Technology (AREA)
- Biophysics (AREA)
- High Energy & Nuclear Physics (AREA)
- Veterinary Medicine (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Public Health (AREA)
- Pathology (AREA)
- Radiology & Medical Imaging (AREA)
- Physics & Mathematics (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- Theoretical Computer Science (AREA)
- Apparatus For Radiation Diagnosis (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US450362 | 1999-11-29 | ||
| US09/450,362 US6307912B1 (en) | 1999-11-29 | 1999-11-29 | Methods and apparatus for optimizing CT image quality with optimized data acquisition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE60036355D1 DE60036355D1 (de) | 2007-10-25 |
| DE60036355T2 true DE60036355T2 (de) | 2008-06-12 |
Family
ID=23787799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE60036355T Expired - Lifetime DE60036355T2 (de) | 1999-11-29 | 2000-11-29 | Verfahren und Gerät zur Optimisierung der Bildqualität vom Computertomographen mit optimaler Datenerfassung |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US6307912B1 (enExample) |
| EP (1) | EP1103221B1 (enExample) |
| JP (1) | JP4675472B2 (enExample) |
| CN (1) | CN1231182C (enExample) |
| DE (1) | DE60036355T2 (enExample) |
| IL (1) | IL139758A (enExample) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6411673B1 (en) * | 2000-12-29 | 2002-06-25 | Ge Medical Systems Global Technology Company, Llc | Sampling rate scaling of calibration vectors in x-ray CT machines |
| JP4532005B2 (ja) * | 2001-03-09 | 2010-08-25 | 株式会社日立メディコ | Ｘ線ｃｔ装置及びその画像表示方法 |
| JP4387638B2 (ja) * | 2001-07-04 | 2009-12-16 | 株式会社東芝 | Ｘ線コンピュータ断層診断装置 |
| JP5438647B2 (ja) * | 2010-03-31 | 2014-03-12 | 富士フイルム株式会社 | 放射線画像システム |
| US8031828B1 (en) | 2010-04-30 | 2011-10-04 | General Electric Company | Method and apparatus for computed tomography |
| MX2014003685A (es) | 2011-09-30 | 2015-05-11 | Childrens Hosp Medical Center | Metodo para optimizacion coherente y verificable de una dosis de radiacion de tomografia computarizada (tc). |
| US20150086101A1 (en) * | 2013-09-25 | 2015-03-26 | General Electric Company | Method for organ localization |
| JP6571659B2 (ja) * | 2014-08-04 | 2019-09-04 | 株式会社日立製作所 | Ｘ線ｃｔ装置、データ処理装置及び投影データ生成方法 |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6152860A (ja) * | 1984-08-24 | 1986-03-15 | 株式会社 日立メデイコ | Ｘ線ｃｔ装置 |
| JPH01299535A (ja) * | 1988-05-30 | 1989-12-04 | Toshiba Corp | データ収集装置 |
| US5220589A (en) * | 1991-07-18 | 1993-06-15 | General Electric Company | Correction circuit for a floating-point amplifier |
| JP2624927B2 (ja) * | 1992-10-06 | 1997-06-25 | 株式会社東芝 | Ｘ線ｃｔ装置 |
| US5416815A (en) * | 1993-07-02 | 1995-05-16 | General Electric Company | Adaptive filter for reducing streaking artifacts in x-ray tomographic images |
| US5379333A (en) | 1993-11-19 | 1995-01-03 | General Electric Company | Variable dose application by modulation of x-ray tube current during CT scanning |
| US5400378A (en) | 1993-11-19 | 1995-03-21 | General Electric Company | Dynamic dose control in multi-slice CT scan |
| US5450462A (en) * | 1993-11-19 | 1995-09-12 | General Electric Company | Modulation of x-ray tube current during CT scanning with modulation limit |
| US5430785A (en) * | 1994-04-11 | 1995-07-04 | General Electric Company | Detector channel gain calibration using focal spot wobble |
| JPH07303632A (ja) * | 1994-05-11 | 1995-11-21 | Ge Yokogawa Medical Syst Ltd | Ｃｔ装置 |
| US5933540A (en) | 1995-05-11 | 1999-08-03 | General Electric Company | Filter system and method for efficiently suppressing noise and improving edge definition in a digitized image |
| CA2184237A1 (en) * | 1995-09-08 | 1997-03-09 | Jay A. Stein | X-ray bone densitometry |
| JPH1021372A (ja) * | 1996-07-05 | 1998-01-23 | Toshiba Corp | Ｘ線ｃｔ装置 |
| JP3673041B2 (ja) * | 1996-11-21 | 2005-07-20 | ジーイー横河メディカルシステム株式会社 | Ｃｔイメージング方法およびｘ線ｃｔ装置 |
| US5828719A (en) | 1996-12-23 | 1998-10-27 | General Electric Company | Methods and apparatus for modulating data acquisition system gain |
| US5734691A (en) * | 1996-12-23 | 1998-03-31 | General Electric Company | Detector z-axis gain non-uniformity correction in a computed tomography system |
| JPH10211195A (ja) * | 1997-01-30 | 1998-08-11 | Shimadzu Corp | Ｘ線ｃｔ装置 |
-
1999
- 1999-11-29 US US09/450,362 patent/US6307912B1/en not_active Expired - Lifetime
-
2000
- 2000-11-19 IL IL13975800A patent/IL139758A/en not_active IP Right Cessation
- 2000-11-28 JP JP2000360411A patent/JP4675472B2/ja not_active Expired - Fee Related
- 2000-11-29 EP EP00310603A patent/EP1103221B1/en not_active Expired - Lifetime
- 2000-11-29 DE DE60036355T patent/DE60036355T2/de not_active Expired - Lifetime
- 2000-11-29 CN CNB001342916A patent/CN1231182C/zh not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1298098A (zh) | 2001-06-06 |
| IL139758A0 (en) | 2002-02-10 |
| EP1103221B1 (en) | 2007-09-12 |
| US6307912B1 (en) | 2001-10-23 |
| DE60036355D1 (de) | 2007-10-25 |
| IL139758A (en) | 2004-06-20 |
| CN1231182C (zh) | 2005-12-14 |
| EP1103221A1 (en) | 2001-05-30 |
| JP2001258875A (ja) | 2001-09-25 |
| JP4675472B2 (ja) | 2011-04-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8364 | No opposition during term of opposition |