JP6464269B2 - Ｐｅｔシステム、デッドタイム補正因子の算出方法 - Google Patents

Ｐｅｔシステム、デッドタイム補正因子の算出方法 Download PDF

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JP6464269B2
JP6464269B2 JP2017531475A JP2017531475A JP6464269B2 JP 6464269 B2 JP6464269 B2 JP 6464269B2 JP 2017531475 A JP2017531475 A JP 2017531475A JP 2017531475 A JP2017531475 A JP 2017531475A JP 6464269 B2 JP6464269 B2 JP 6464269B2
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detector
lor
rate
dead time
pet
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JP2018506706A5 (enExample
JP2018506706A (ja
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リーロイ ローレンス，トーマス
リーロイ ローレンス，トーマス
シャオロン ワン，シャロン
シャオロン ワン，シャロン
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Koninklijke Philips NV
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
    • G01T1/16—Measuring radiation intensity
    • G01T1/17—Circuit arrangements not adapted to a particular type of detector
    • G01T1/171—Compensation of dead-time counting losses
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
    • G01T1/16—Measuring radiation intensity
    • G01T1/24—Measuring radiation intensity with semiconductor detectors
    • G01T1/249—Measuring radiation intensity with semiconductor detectors specially adapted for use in SPECT or PET
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
    • G01T1/29—Measurement performed on radiation beams, e.g. position or section of the beam; Measurement of spatial distribution of radiation
    • G01T1/2914—Measurement of spatial distribution of radiation
    • G01T1/2985—In depth localisation, e.g. using positron emitters; Tomographic imaging (longitudinal and transverse section imaging; apparatus for radiation diagnosis sequentially in different planes, steroscopic radiation diagnosis)

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Molecular Biology (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Nuclear Medicine (AREA)
  • Measurement Of Radiation (AREA)
JP2017531475A 2014-12-15 2015-12-14 Ｐｅｔシステム、デッドタイム補正因子の算出方法 Expired - Fee Related JP6464269B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201462091801P 2014-12-15 2014-12-15
US62/091,801 2014-12-15
PCT/IB2015/059594 WO2016097977A1 (en) 2014-12-15 2015-12-14 Pixel based dead time correction

Publications (3)

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JP2018506706A JP2018506706A (ja) 2018-03-08
JP2018506706A5 JP2018506706A5 (enExample) 2018-11-29
JP6464269B2 true JP6464269B2 (ja) 2019-02-06

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US (1) US10101474B2 (enExample)
EP (1) EP3234647B1 (enExample)
JP (1) JP6464269B2 (enExample)
CN (1) CN107110983B (enExample)
WO (1) WO2016097977A1 (enExample)

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CN111512343A (zh) * 2017-09-21 2020-08-07 皇家飞利浦有限公司 用于正电子发射断层摄影随机符合估计的松弛迭代最大似然期望最大化
US11175418B2 (en) * 2017-09-22 2021-11-16 Koninklijke Philips N.V. Handling detector pixel performance variation in digital positron emission tomography
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CN108287361B (zh) * 2018-01-03 2019-08-27 东软医疗系统股份有限公司 一种单事件死时间的检测方法及装置
WO2019145398A1 (en) * 2018-01-26 2019-08-01 Koninklijke Philips N.V. A dead-time correction method in quantitative positron emission tomography (pet) reconstruction for various objects and radioactivity distributions
US11428829B2 (en) 2018-01-30 2022-08-30 Koninklijke Philips N.V. Correction method for quantification accuracy improvement in list mode reconstruction
CN108831546A (zh) * 2018-06-22 2018-11-16 上海联影医疗科技有限公司 一种数据处理方法、装置和非暂态计算机可读存储介质
US10945685B2 (en) * 2018-07-25 2021-03-16 New York University System and method for normalizing standardized uptake values in brain positron emission tomography (PET) images
CN110215227B (zh) * 2019-06-05 2022-10-14 上海联影医疗科技股份有限公司 时间窗设置方法、装置、计算机设备和存储介质
US11002867B1 (en) * 2019-10-23 2021-05-11 Siemens Medical Solutions Usa, Inc. Determination of crystal singles rates to estimate mean random coincidence rate
CN113116371B (zh) * 2019-12-30 2024-04-19 佳能医疗系统株式会社 Pet装置及校准方法
US11241211B2 (en) * 2020-03-12 2022-02-08 Canon Medical Systems Corporation Method and apparatus for singles spectrum estimation and for dead-time correction in positron emission tomography (PET)
CN111447426B (zh) * 2020-05-13 2021-12-31 中测新图(北京)遥感技术有限责任公司 一种影像色彩校正方法以及装置
CN111839566B (zh) * 2020-08-21 2023-06-16 上海联影医疗科技股份有限公司 Pet成像设备的死时间校正方法、系统、装置及存储介质
CN112817035B (zh) * 2021-01-28 2022-11-25 上海联影医疗科技股份有限公司 数据补偿方法、装置、计算机设备和存储介质
CN113359178B (zh) * 2021-03-29 2023-05-16 山西中辐核仪器有限责任公司 一种基于自适应死时间补偿的辐射测量仪
CN113109225B (zh) * 2021-04-19 2023-07-18 中国科学院合肥物质科学研究院 一种cpc粒子计数器中死区时间的校正方法
EP4242696A1 (en) * 2022-03-10 2023-09-13 Positrigo AG Method for determining relative detector element efficiencies in a pet-scanning device
US12193858B2 (en) * 2022-07-21 2025-01-14 Canon Medical Systems Corporation Method to detect energy-dependent count loss
US12320933B2 (en) 2022-10-05 2025-06-03 Canon Medical Systems Corporation Method for correction of correlated count losses
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CN118266964B (zh) * 2022-12-30 2025-10-21 合肥锐世数字科技有限公司 基于壳源的时间校正方法、装置、设备及存储介质
EP4617731A1 (de) * 2024-03-14 2025-09-17 Siemens Healthineers AG Abschätzen einer rate von zufälligen koinzidenzen in einem zählenden röntgendetektor

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Publication number Publication date
CN107110983A (zh) 2017-08-29
CN107110983B (zh) 2020-02-07
EP3234647B1 (en) 2021-03-03
US20170371046A1 (en) 2017-12-28
EP3234647A1 (en) 2017-10-25
US10101474B2 (en) 2018-10-16
WO2016097977A1 (en) 2016-06-23
JP2018506706A (ja) 2018-03-08

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