JP2000217810A5 - - Google Patents
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- JP2000217810A5 JP2000217810A5 JP1999021647A JP2164799A JP2000217810A5 JP 2000217810 A5 JP2000217810 A5 JP 2000217810A5 JP 1999021647 A JP1999021647 A JP 1999021647A JP 2164799 A JP2164799 A JP 2164799A JP 2000217810 A5 JP2000217810 A5 JP 2000217810A5
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- ray
- image
- transmitted
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- displays
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- 230000001678 irradiating effect Effects 0.000 claims 1
Claims (1)
前記透過Ｘ線像を互いに相異なる複数組に分け、各組毎の透過Ｘ線像を再構成して得られたＸ線分布像毎の鮮鋭度を計算し、該鮮鋭度が最も大きい組の透過Ｘ線像に基づいて、前記被写体のＸ線断層像又は／及び三次元Ｘ線像を生成し表示することを特徴とするコーンビームＣＴ装置。In a cone beam CT apparatus that generates and displays an X-ray tomographic image or / and a three-dimensional X-ray image of the subject based on a transmitted X-ray image of the subject imaged by irradiating the subject with X-rays,
The transmitted X-ray images are divided into a plurality of different sets, and the sharpness for each X-ray distribution image obtained by reconstructing the transmitted X-ray images for each set is calculated, and the set with the highest sharpness is calculated. A cone beam CT apparatus that generates and displays an X-ray tomographic image and / or a three-dimensional X-ray image of the subject based on a transmitted X-ray image.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02164799A JP3897925B2 (en) | 1999-01-29 | 1999-01-29 | Cone beam CT system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02164799A JP3897925B2 (en) | 1999-01-29 | 1999-01-29 | Cone beam CT system |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2000217810A JP2000217810A (en) | 2000-08-08 |
| JP2000217810A5 true JP2000217810A5 (en) | 2005-04-28 |
| JP3897925B2 JP3897925B2 (en) | 2007-03-28 |
Family
ID=12060857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP02164799A Expired - Fee Related JP3897925B2 (en) | 1999-01-29 | 1999-01-29 | Cone beam CT system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3897925B2 (en) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6501981B1 (en) | 1999-03-16 | 2002-12-31 | Accuray, Inc. | Apparatus and method for compensating for respiratory and patient motions during treatment |
| US6778850B1 (en) * | 1999-03-16 | 2004-08-17 | Accuray, Inc. | Frameless radiosurgery treatment system and method |
| US7031504B1 (en) * | 2000-09-26 | 2006-04-18 | Vital Images, Inc. | Image data based retrospective temporal selection of medical images |
| US7099431B2 (en) | 2003-06-09 | 2006-08-29 | Canon Kabushiki Kaisha | Radiation imaging apparatus |
| JP4393117B2 (en) | 2003-06-10 | 2010-01-06 | キヤノン株式会社 | Radiation imaging apparatus and water correction method |
| JP4649150B2 (en) * | 2003-10-03 | 2011-03-09 | キヤノン株式会社 | Radiation imaging apparatus and imaging method |
| JP2005176896A (en) * | 2003-12-16 | 2005-07-07 | Canon Inc | X-ray image processing apparatus, X-ray image processing method, program, and computer-readable storage medium |
| WO2005070296A1 (en) * | 2004-01-22 | 2005-08-04 | Canon Kabushiki Kaisha | Radiographic device and radiographic method |
| JP3944173B2 (en) | 2004-02-05 | 2007-07-11 | キヤノン株式会社 | Radiation image processing apparatus and processing method |
| US7310404B2 (en) | 2004-03-24 | 2007-12-18 | Canon Kabushiki Kaisha | Radiation CT radiographing device, radiation CT radiographing system, and radiation CT radiographing method using the same |
| JP4497997B2 (en) * | 2004-04-21 | 2010-07-07 | キヤノン株式会社 | Radiation imaging apparatus and control method thereof |
| US7676022B2 (en) | 2005-05-02 | 2010-03-09 | Oy Ajat Ltd. | Extra-oral digital panoramic dental x-ray imaging system |
| JP4928106B2 (en) * | 2005-09-26 | 2012-05-09 | キヤノン株式会社 | CT imaging device |
| JP5215050B2 (en) * | 2008-06-10 | 2013-06-19 | 株式会社東芝 | Image processing device |
| US8758263B1 (en) | 2009-10-31 | 2014-06-24 | Voxel Rad, Ltd. | Systems and methods for frameless image-guided biopsy and therapeutic intervention |
| JP5912237B2 (en) * | 2010-08-10 | 2016-04-27 | 株式会社東芝 | X-ray CT apparatus and signal processing program for X-ray CT apparatus |
| US11478662B2 (en) | 2017-04-05 | 2022-10-25 | Accuray Incorporated | Sequential monoscopic tracking |
| US10806339B2 (en) | 2018-12-12 | 2020-10-20 | Voxel Rad, Ltd. | Systems and methods for treating cancer using brachytherapy |
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1999
- 1999-01-29 JP JP02164799A patent/JP3897925B2/en not_active Expired - Fee Related
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