DE19882430T1 - Korrektur von Emissions-Kontamination und Totzeitverlust - Google Patents
Korrektur von Emissions-Kontamination und TotzeitverlustInfo
- Publication number
- DE19882430T1 DE19882430T1 DE19882430T DE19882430T DE19882430T1 DE 19882430 T1 DE19882430 T1 DE 19882430T1 DE 19882430 T DE19882430 T DE 19882430T DE 19882430 T DE19882430 T DE 19882430T DE 19882430 T1 DE19882430 T1 DE 19882430T1
- Authority
- DE
- Germany
- Prior art keywords
- correction
- loss
- dead time
- emission contamination
- contamination
- 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.)
- Withdrawn
Links
- 238000011109 contamination Methods 0.000 title 1
Classifications
-
- 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
- G01T1/161—Applications in the field of nuclear medicine, e.g. in vivo counting
- G01T1/1611—Applications in the field of nuclear medicine, e.g. in vivo counting using both transmission and emission sources sequentially
-
- 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
- G01T1/29—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)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/865,930 US6008493A (en) | 1997-05-30 | 1997-05-30 | Method and apparatus for performing correction of emission contamination and deadtime loss in a medical imaging system |
PCT/US1998/004971 WO1998054598A1 (en) | 1997-05-30 | 1998-03-12 | Correction of emission contamination and deadtime loss |
Publications (1)
Publication Number | Publication Date |
---|---|
DE19882430T1 true DE19882430T1 (de) | 2000-06-21 |
Family
ID=25346552
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19882430T Withdrawn DE19882430T1 (de) | 1997-05-30 | 1998-03-12 | Korrektur von Emissions-Kontamination und Totzeitverlust |
Country Status (5)
Country | Link |
---|---|
US (1) | US6008493A (de) |
JP (1) | JP4285783B2 (de) |
AU (1) | AU6463198A (de) |
DE (1) | DE19882430T1 (de) |
WO (1) | WO1998054598A1 (de) |
Families Citing this family (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6410920B1 (en) * | 1997-05-30 | 2002-06-25 | Adac Laboratories | Method and apparatus for performing correction of emission contamination and deadtime loss in a medical imaging system |
US6201247B1 (en) * | 1998-04-02 | 2001-03-13 | Picker International, Inc. | Line source for gamma camera |
US6429434B1 (en) * | 1998-05-01 | 2002-08-06 | Charles C. Watson | Transmission attenuation correction method for PET and SPECT |
JPH11352233A (ja) * | 1998-06-08 | 1999-12-24 | Toshiba Corp | 核医学診断装置 |
US6242743B1 (en) * | 1998-08-11 | 2001-06-05 | Mosaic Imaging Technology, Inc. | Non-orbiting tomographic imaging system |
US6198104B1 (en) * | 1998-10-23 | 2001-03-06 | Adac Laboratories | Randoms correction using artificial trigger pulses in a gamma camera system |
US6310968B1 (en) * | 1998-11-24 | 2001-10-30 | Picker International, Inc. | Source-assisted attenuation correction for emission computed tomography |
US6403960B1 (en) * | 1999-04-29 | 2002-06-11 | Koninklijijke Philips Electronics N.V. | Correction for spatial variations of deadtime of a monolithic scintillator based detector in a medical imaging system |
JP2003501666A (ja) | 1999-06-06 | 2003-01-14 | エルゲムズ・リミテッド | ガンマカメラおよびctシステム |
US6878941B2 (en) | 2002-04-09 | 2005-04-12 | Elgems Ltd. | Gamma camera and CT system |
US6263096B1 (en) * | 1999-06-23 | 2001-07-17 | The Board Of Trustees Of The University Of Illinois | Multilevel domain decomposition method for fast reprojection of images |
US6294788B1 (en) * | 1999-08-18 | 2001-09-25 | Marconi Medical Systems, Inc. | Randoms correction in positron imaging |
US6388244B1 (en) * | 2000-03-20 | 2002-05-14 | Philips Medical Systems (Cleveland), Inc. | Virtual contouring for transmission scanning in spect and pet studies |
AU2001266579A1 (en) * | 2000-05-16 | 2001-11-26 | Dario B. Crosetto | Method and apparatus for anatomical and functional medical imaging |
US20040164249A1 (en) * | 2003-02-26 | 2004-08-26 | Crosetto Dario B. | Method and apparatus for determining depth of interactions in a detector for three-dimensional complete body screening |
US7132664B1 (en) | 2002-11-09 | 2006-11-07 | Crosetto Dario B | Method and apparatus for improving PET detectors |
GB0312776D0 (en) * | 2003-06-04 | 2003-07-09 | Imaging Res Solutions Ltd | Generating detector efficiency estimates for a pet scanner |
US7120222B2 (en) * | 2003-06-05 | 2006-10-10 | General Electric Company | CT imaging system with multiple peak x-ray source |
US7132663B2 (en) * | 2004-11-04 | 2006-11-07 | General Electric Company | Methods and apparatus for real-time error correction |
DE602006013095D1 (de) * | 2005-01-28 | 2010-05-06 | Koninkl Philips Electronics Nv | Zeitkalibrierung unter verwendung radioaktiver quellen |
CN101842806B (zh) * | 2006-03-27 | 2014-03-05 | 皇家飞利浦电子股份有限公司 | 脏同位素pet重建 |
US8805652B2 (en) * | 2008-06-05 | 2014-08-12 | Saint-Gobain Ceramics & Plastics, Inc. | Charge calibrator and system incorporating the same |
US8450693B2 (en) * | 2009-12-11 | 2013-05-28 | General Electric Company | Method and system for fault-tolerant reconstruction of images |
US8977026B2 (en) * | 2012-05-30 | 2015-03-10 | General Electric Company | Methods and systems for locating a region of interest in an object |
HU231269B1 (hu) * | 2014-06-06 | 2022-07-28 | Siemens Medical Solutions Usa, Inc. | Gamma kamera holtidő meghatározás valós időben hosszú életű radioizotópok használatával |
KR20160008820A (ko) * | 2014-07-15 | 2016-01-25 | 한국원자력의학원 | 보정 계수 연산 장치 및 방법 |
US9606245B1 (en) | 2015-03-24 | 2017-03-28 | The Research Foundation For The State University Of New York | Autonomous gamma, X-ray, and particle detector |
US11009615B2 (en) | 2016-12-20 | 2021-05-18 | Koninklijke Philips N.V. | Time-of-flight resolution-adaptive image regularization and filtering in positron emission tomography |
CN107242881B (zh) * | 2017-08-15 | 2020-07-14 | 中日友好医院 | 一种pet晶体位置查找表更新方法 |
AU2018202912B1 (en) * | 2018-04-27 | 2019-06-20 | Southern Innovation International Pty Ltd | Input count rate estimation in radiation pulse detectors |
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) |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4599690A (en) * | 1983-11-09 | 1986-07-08 | Siemens Gammasonics, Inc. | Method and circuit for correcting count rate losses of radiation events |
US5249124A (en) * | 1991-04-16 | 1993-09-28 | Siemens Gammasonics, Inc. | Multi-isotope imaging using energy-weighted acquisition for, e.g., myocardial perfusion studies |
US6184530B1 (en) * | 1991-05-23 | 2001-02-06 | Adac Laboratories | Adjustable dual-detector image data acquisition system |
US5461232A (en) * | 1993-01-08 | 1995-10-24 | Mccandless; Brian K. | Pulse transmission scintigraphic imaging |
US5471061A (en) * | 1994-03-21 | 1995-11-28 | Cti Pet Systems, Inc. | Method and apparatus for transmission measurements to form a 2-d or a 3-d image in tomography applications |
US5296708A (en) * | 1993-03-26 | 1994-03-22 | Cti, Inc. | Method and apparatus for transmission measurements to form a 3-D image in tomography applications |
US5600145A (en) * | 1995-01-19 | 1997-02-04 | Picker International, Inc. | Emission/transmission device for use with a dual head nuclear medicine gamma camera with the transmission source located behind the emission collimator |
US5596197A (en) * | 1995-05-11 | 1997-01-21 | Adac Laboratories | Dual synchronized sliding transmission detection windows for dual transmission line sources |
US5552606A (en) * | 1995-05-11 | 1996-09-03 | Adac Laboratories, Inc. | Variable filters used with radiation source to reduce unobstructed detector area |
US5608221A (en) * | 1995-06-09 | 1997-03-04 | Adac Laboratories | Multi-head nuclear medicine camera for dual SPECT and PET imaging with monuniform attenuation correction |
US5585637A (en) * | 1995-06-09 | 1996-12-17 | Adac Laboratories | Multi-head nuclear medicine camera for dual SPECT and PET imaging |
US5565684A (en) * | 1995-06-30 | 1996-10-15 | The University Of Utah | Three-dimensional SPECT reconstruction of combined cone-beam and fan-beam data |
DE69613711T2 (de) * | 1995-11-22 | 2002-05-08 | Picker Internat Inc | Pet-echtzeitabbildungsverfahren für einzelphotonen-gammakamera |
-
1997
- 1997-05-30 US US08/865,930 patent/US6008493A/en not_active Expired - Fee Related
-
1998
- 1998-03-12 DE DE19882430T patent/DE19882430T1/de not_active Withdrawn
- 1998-03-12 WO PCT/US1998/004971 patent/WO1998054598A1/en active Application Filing
- 1998-03-12 AU AU64631/98A patent/AU6463198A/en not_active Abandoned
- 1998-03-12 JP JP50064299A patent/JP4285783B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
AU6463198A (en) | 1998-12-30 |
JP4285783B2 (ja) | 2009-06-24 |
JP2002501617A (ja) | 2002-01-15 |
US6008493A (en) | 1999-12-28 |
WO1998054598A1 (en) | 1998-12-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8127 | New person/name/address of the applicant |
Owner name: KONINKLIJKE PHILIPS ELECTRONICS N.V., EINDHOVEN, N |
|
8110 | Request for examination paragraph 44 | ||
8139 | Disposal/non-payment of the annual fee |