JP2019520909A5 - - Google Patents
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- JP2019520909A5 JP2019520909A5 JP2018568234A JP2018568234A JP2019520909A5 JP 2019520909 A5 JP2019520909 A5 JP 2019520909A5 JP 2018568234 A JP2018568234 A JP 2018568234A JP 2018568234 A JP2018568234 A JP 2018568234A JP 2019520909 A5 JP2019520909 A5 JP 2019520909A5
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- Japan
- Prior art keywords
- path length
- photon
- photon count
- data
- signal processing
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- 230000006870 function Effects 0.000 claims 7
- 238000003384 imaging method Methods 0.000 claims 5
- 238000006243 chemical reaction Methods 0.000 claims 2
- 238000004590 computer program Methods 0.000 claims 2
- 230000004907 flux Effects 0.000 claims 2
- 238000000034 method Methods 0.000 claims 2
- 230000006399 behavior Effects 0.000 claims 1
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 238000003672 processing method Methods 0.000 claims 1
- 230000001131 transforming effect Effects 0.000 claims 1
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP16176936.9 | 2016-06-29 | ||
| EP16176936 | 2016-06-29 | ||
| PCT/EP2017/066139 WO2018002226A1 (en) | 2016-06-29 | 2017-06-29 | Photon-counting computed tomography |
Publications (4)
| Publication Number | Publication Date |
|---|---|
| JP2019520909A JP2019520909A (ja) | 2019-07-25 |
| JP2019520909A5 true JP2019520909A5 (enExample) | 2020-08-06 |
| JP7065792B2 JP7065792B2 (ja) | 2022-05-12 |
| JP7065792B6 JP7065792B6 (ja) | 2022-06-06 |
Family
ID=56368819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2018568234A Active JP7065792B6 (ja) | 2016-06-29 | 2017-06-29 | 光子カウントコンピュータ断層撮影 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US10980506B2 (enExample) |
| EP (1) | EP3479145B1 (enExample) |
| JP (1) | JP7065792B6 (enExample) |
| CN (1) | CN109416405B (enExample) |
| WO (1) | WO2018002226A1 (enExample) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019113440A1 (en) * | 2017-12-08 | 2019-06-13 | Rensselaer Polytechnic Institute | A neural network-based corrector for photon counting detectors |
| EP3667370A1 (en) * | 2018-12-11 | 2020-06-17 | Koninklijke Philips N.V. | Energy weighting of photon counts for conventional imaging |
| US10679385B1 (en) * | 2018-12-17 | 2020-06-09 | General Electric Company | System and method for statistical iterative reconstruction and material decomposition |
| JP7309385B2 (ja) * | 2019-02-28 | 2023-07-18 | 富士フイルムヘルスケア株式会社 | 光子計数型検出器の較正方法 |
| CN110226943B (zh) * | 2019-07-05 | 2023-08-15 | 上海联影医疗科技股份有限公司 | 光子到达探测器的参数计算方法、装置和计算机设备 |
| US11013487B2 (en) | 2019-10-18 | 2021-05-25 | Canon Medical Systems Corporation | Method and apparatus for computed tomography (CT) and material decomposition with count-rate dependent pileup correction |
| EP3838154A1 (en) * | 2019-12-16 | 2021-06-23 | Koninklijke Philips N.V. | Apparatus for generating photon counting spectral image data |
| CN110967777B (zh) * | 2019-12-23 | 2022-08-23 | 宁波飞芯电子科技有限公司 | 相干探测接收装置、退相干处理方法、设备及介质 |
| EP3842839A1 (en) * | 2019-12-27 | 2021-06-30 | Koninklijke Philips N.V. | Compensation of polarization effects in photon counting detectors |
| JP7440271B2 (ja) * | 2020-01-10 | 2024-02-28 | 富士フイルムヘルスケア株式会社 | 放射線撮像装置および光子計数型検出器の較正方法 |
| JP7427799B2 (ja) * | 2020-02-05 | 2024-02-05 | プリズマティック、センサーズ、アクチボラグ | 光子計数ｘ線検出器のための閾値超合計時間（ｔｔｏｔ）処理 |
| US11353411B2 (en) * | 2020-06-01 | 2022-06-07 | GE Precision Healthcare LLC | Methods and systems for multi-material decomposition |
| JP7610030B2 (ja) * | 2020-12-09 | 2025-01-07 | エーエムエス・インターナショナル・アーゲー | 光子計数システムにおける基線抽出のための電気回路機構 |
| US11944484B2 (en) | 2021-03-31 | 2024-04-02 | Canon Medical Systems Corporation | Material decomposition calibration method and apparatus for a full size photon counting CT system |
| JP2024048121A (ja) * | 2022-09-27 | 2024-04-08 | キヤノン株式会社 | 情報処理装置、放射線撮影システム、情報処理方法及びプログラム |
| US12446845B2 (en) | 2023-01-09 | 2025-10-21 | GE Precision Healthcare LLC | Systems and methods for CT image reconstruction |
| US20250387094A1 (en) * | 2024-06-19 | 2025-12-25 | GE Precision Healthcare LLC | Supporting calibration of an x-ray imaging system and adjustment of operational settings |
| WO2026117775A1 (en) * | 2024-11-29 | 2026-06-04 | The Johns Hopkins University | Calibration method for reducing ring artifacts in energy bin images for photon-counting ct |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3018439B2 (ja) * | 1990-08-31 | 2000-03-13 | 株式会社島津製作所 | シンチレーションカメラ |
| JP3446327B2 (ja) * | 1994-08-31 | 2003-09-16 | 株式会社島津製作所 | 放射線撮像装置 |
| JP2005241294A (ja) | 2004-02-24 | 2005-09-08 | Hitachi Ltd | 透視撮像方法および装置 |
| JP2009513220A (ja) | 2005-10-28 | 2009-04-02 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 分光コンピュータ断層撮影の方法および装置 |
| WO2008155679A2 (en) | 2007-06-19 | 2008-12-24 | Koninklijke Philips Electronics N.V. | Digital pulse processing for multi-spectral photon counting readout circuits |
| DE102008048306B4 (de) | 2008-09-22 | 2016-06-09 | Siemens Healthcare Gmbh | Verfahren zur Detektion von Röntgenstrahlung und Röntgensystem |
| DE102010042388A1 (de) * | 2010-10-13 | 2012-04-19 | Siemens Aktiengesellschaft | Verfahren zur Kalibrierung eines CT-Systems mit zumindest einer Fokus-Detektor-Kombination mit einem quantenzählenden Detektor |
| RU2014143053A (ru) * | 2012-03-27 | 2016-05-20 | Конинклейке Филипс Н.В. | Обычная визуализация посредством системы визуализации, содержащей детекторы для счета фотонов |
| CN104471441B (zh) | 2012-06-27 | 2017-07-18 | 皇家飞利浦有限公司 | 谱光子计数探测器 |
| DE102013200021B4 (de) * | 2013-01-02 | 2016-01-28 | Siemens Aktiengesellschaft | Verfahren zur Kalibrierung eines zählenden digitalen Röntgendetektors, Röntgensysteme zur Durchführung eines solchen Verfahrens und Verfahren zur Aufnahme eines Röntgenbildes |
| WO2014181223A1 (en) * | 2013-05-10 | 2014-11-13 | Koninklijke Philips N.V. | Direct conversion radiation detector digital signal processing electronics |
| EP2994051B1 (en) | 2013-05-10 | 2018-08-29 | Koninklijke Philips N.V. | Photon-counting detector calibration |
| US9459358B2 (en) | 2013-12-11 | 2016-10-04 | Toshiba Medical Systems Corporation | Reference calibration in photon counting based spectral CT |
| US9220469B2 (en) | 2013-12-31 | 2015-12-29 | General Electric Company | Systems and methods for correcting detector errors in computed tomography imaging |
| US11020070B2 (en) * | 2014-06-27 | 2021-06-01 | Koninklijke Philips N.V. | Spectral material decomposition for photon-counting applications |
-
2017
- 2017-06-29 JP JP2018568234A patent/JP7065792B6/ja active Active
- 2017-06-29 CN CN201780040078.8A patent/CN109416405B/zh active Active
- 2017-06-29 US US16/305,529 patent/US10980506B2/en active Active
- 2017-06-29 EP EP17739904.5A patent/EP3479145B1/en active Active
- 2017-06-29 WO PCT/EP2017/066139 patent/WO2018002226A1/en not_active Ceased
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