JP3836931B2 - 照射範囲限定式x線ct装置 - Google Patents
照射範囲限定式x線ct装置 Download PDFInfo
- Publication number
- JP3836931B2 JP3836931B2 JP05754097A JP5754097A JP3836931B2 JP 3836931 B2 JP3836931 B2 JP 3836931B2 JP 05754097 A JP05754097 A JP 05754097A JP 5754097 A JP5754097 A JP 5754097A JP 3836931 B2 JP3836931 B2 JP 3836931B2
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- Japan
- Prior art keywords
- ray
- collimator
- region
- transmission data
- interest
- 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
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- 230000005540 biological transmission Effects 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 13
- 230000008569 process Effects 0.000 claims description 8
- 238000012545 processing Methods 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 7
- 238000012935 Averaging Methods 0.000 claims description 3
- 230000001678 irradiating effect Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 9
- 238000002594 fluoroscopy Methods 0.000 description 8
- 238000012937 correction Methods 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 6
- 238000003384 imaging method Methods 0.000 description 6
- 238000012856 packing Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000013170 computed tomography imaging Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 210000000056 organ Anatomy 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 239000002872 contrast media Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011990 functional testing Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000010187 selection method Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000003325 tomography Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000004846 x-ray emission Methods 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
- A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/027—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis characterised by the use of a particular data acquisition trajectory, e.g. helical or spiral
Landscapes
- Apparatus For Radiation Diagnosis (AREA)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05754097A JP3836931B2 (ja) | 1997-03-12 | 1997-03-12 | 照射範囲限定式x線ct装置 |
| US09/380,824 US6445761B1 (en) | 1997-03-12 | 1998-03-11 | X-ray computerized tomograph including collimator that restricts irradiation range of X-ray fan beam |
| PCT/JP1998/001004 WO1998040013A1 (fr) | 1997-03-12 | 1998-03-11 | Tomographe assiste par ordinateur, dote d'un collimateur qui restreint la portee d'irradiation d'un faisceau de rayons x en eventail |
| DE69826872T DE69826872T2 (de) | 1997-03-12 | 1998-03-11 | Rechnergestützter röntgentomograph mit den bestrahlungsbereichs eines röntgenfächerstrahls begrenzendem kollimator |
| EP98907164A EP1008325B1 (en) | 1997-03-12 | 1998-03-11 | X-ray computerized tomograph having collimator which restricts the irradiation range of x-ray fan beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05754097A JP3836931B2 (ja) | 1997-03-12 | 1997-03-12 | 照射範囲限定式x線ct装置 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JPH10248835A JPH10248835A (ja) | 1998-09-22 |
| JPH10248835A5 JPH10248835A5 (enrdf_load_stackoverflow) | 2005-01-20 |
| JP3836931B2 true JP3836931B2 (ja) | 2006-10-25 |
Family
ID=13058606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP05754097A Expired - Fee Related JP3836931B2 (ja) | 1997-03-12 | 1997-03-12 | 照射範囲限定式x線ct装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3836931B2 (enrdf_load_stackoverflow) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6418183B1 (en) * | 2000-12-28 | 2002-07-09 | Ge Medical Systems Global Technology Company, Llp | Methods and apparatus for two-pass CT imaging |
| JP2004180715A (ja) * | 2002-11-29 | 2004-07-02 | Toshiba Corp | X線コンピュータ断層撮影装置 |
| US6934353B2 (en) * | 2003-10-01 | 2005-08-23 | Ge Medical Systems Global Technology Company, Llc | Methods, apparatus, and computer readable mediums for performing perfusion studies |
| JP4619704B2 (ja) * | 2004-06-30 | 2011-01-26 | 株式会社東芝 | X線コンピュータ断層撮影装置 |
| JP4679348B2 (ja) * | 2005-11-22 | 2011-04-27 | ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー | X線ct装置 |
| JP5269358B2 (ja) | 2007-07-18 | 2013-08-21 | 株式会社東芝 | X線ct装置 |
| JP4740348B2 (ja) * | 2009-02-10 | 2011-08-03 | 株式会社東芝 | X線診断装置 |
| US8649479B2 (en) * | 2010-11-22 | 2014-02-11 | General Electric Company | System and method for breast imaging using X-ray computed tomography |
| JP6097285B2 (ja) * | 2011-07-04 | 2017-03-15 | コーニンクレッカ フィリップス エヌ ヴェKoninklijke Philips N.V. | スキャン運動と同期する領域制限装置 |
| JP6169831B2 (ja) * | 2012-08-27 | 2017-07-26 | 東芝メディカルシステムズ株式会社 | X線コンピュータ断層撮影装置 |
| JP6571313B2 (ja) * | 2013-05-28 | 2019-09-04 | 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制御方法 |
| CN110327069B (zh) * | 2019-07-01 | 2023-05-05 | 赛诺威盛科技(北京)股份有限公司 | 一种缩小ct螺旋扫描范围的方法 |
| JP2023183108A (ja) * | 2022-06-15 | 2023-12-27 | 国立大学法人 筑波大学 | インテリアctの画像再構成方法、画像再構成装置、及び、プログラム |
-
1997
- 1997-03-12 JP JP05754097A patent/JP3836931B2/ja not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH10248835A (ja) | 1998-09-22 |
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