GB1575325A - Radiation sensing devices and processes for correcting nonuniformity of radiation cameras - Google Patents
Radiation sensing devices and processes for correcting nonuniformity of radiation cameras Download PDFInfo
- Publication number
- GB1575325A GB1575325A GB17839/77A GB1783977A GB1575325A GB 1575325 A GB1575325 A GB 1575325A GB 17839/77 A GB17839/77 A GB 17839/77A GB 1783977 A GB1783977 A GB 1783977A GB 1575325 A GB1575325 A GB 1575325A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coordinate
- radiation
- correction
- locations
- correction factor
- 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
Links
- 230000005855 radiation Effects 0.000 title claims description 68
- 238000000034 method Methods 0.000 title claims description 15
- 238000012937 correction Methods 0.000 claims description 80
- 230000015654 memory Effects 0.000 claims description 41
- 239000011159 matrix material Substances 0.000 claims description 19
- 238000001514 detection method Methods 0.000 claims description 10
- 238000005070 sampling Methods 0.000 claims description 3
- 238000009825 accumulation Methods 0.000 claims description 2
- 230000001678 irradiating effect Effects 0.000 claims description 2
- 239000013078 crystal Substances 0.000 description 19
- 230000006870 function Effects 0.000 description 14
- 230000009977 dual effect Effects 0.000 description 5
- 230000003068 static effect Effects 0.000 description 4
- 206010028980 Neoplasm Diseases 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 238000003745 diagnosis Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 210000000056 organ Anatomy 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000037303 wrinkles Effects 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 108010014173 Factor X Proteins 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000003702 image correction Methods 0.000 description 1
- 238000009206 nuclear medicine Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 210000001685 thyroid gland Anatomy 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 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
- G01T1/164—Scintigraphy
- G01T1/1641—Static instruments for imaging the distribution of radioactivity in one or two dimensions using one or several scintillating elements; Radio-isotope cameras
- G01T1/1642—Static instruments for imaging the distribution of radioactivity in one or two dimensions using one or several scintillating elements; Radio-isotope cameras using a scintillation crystal and position sensing photodetector arrays, e.g. ANGER cameras
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- General Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US68424176A | 1976-05-07 | 1976-05-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1575325A true GB1575325A (en) | 1980-09-17 |
Family
ID=24747269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB17839/77A Expired GB1575325A (en) | 1976-05-07 | 1977-04-28 | Radiation sensing devices and processes for correcting nonuniformity of radiation cameras |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US4151416A (https=) |
| JP (1) | JPS52137180A (https=) |
| AU (1) | AU505730B2 (https=) |
| CA (1) | CA1085973A (https=) |
| DE (1) | DE2719837A1 (https=) |
| FR (1) | FR2350615A1 (https=) |
| GB (1) | GB1575325A (https=) |
Families Citing this family (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4115694A (en) * | 1977-04-13 | 1978-09-19 | General Electric Company | Scintillation camera system with improved means for correcting nonuniformity in real time |
| US4817038A (en) * | 1977-12-21 | 1989-03-28 | Siemens Gammasonics, Inc. | Radiation signal processing system |
| US4212061A (en) * | 1977-12-21 | 1980-07-08 | Medtronic, Inc. | Radiation signal processing system |
| US4228515A (en) * | 1978-06-13 | 1980-10-14 | Sebastian Genna | Method and apparatus of digital calibration and position analysis of a radiant emission |
| US4223221A (en) * | 1978-06-19 | 1980-09-16 | Picker Corporation | Scintillation camera uniformity correction |
| US4298944A (en) * | 1979-06-22 | 1981-11-03 | Siemens Gammasonics, Inc. | Distortion correction method and apparatus for scintillation cameras |
| US4323977A (en) * | 1979-11-20 | 1982-04-06 | Siemens Gammasonics, Inc. | Non-uniformity energy correction method and apparatus |
| US4429226A (en) | 1980-05-13 | 1984-01-31 | Elscint, Inc. | Method of and means for improving the resolution of a gamma camera |
| US4588897A (en) * | 1980-06-19 | 1986-05-13 | Elscint, Ltd. | Gamma camera correction system and method for using the same |
| US4437160A (en) | 1980-07-31 | 1984-03-13 | Blum Alvin S | Photon emission imaging apparatus and method |
| US4566074A (en) * | 1981-10-08 | 1986-01-21 | Tokyo Shibaura Denki Kabushiki Kaisha | Scintillation camera |
| US4611283A (en) * | 1981-12-30 | 1986-09-09 | Raytheon Company | Radiographic imaging apparatus and methods for operating such apparatus |
| JPS6073482A (ja) * | 1983-09-30 | 1985-04-25 | Shimadzu Corp | シンチレ−シヨンカメラ |
| DE3769529D1 (de) * | 1986-07-09 | 1991-05-29 | Philips Nv | Szintillationskamera. |
| FR2601783B1 (fr) * | 1986-07-16 | 1989-11-24 | Labo Electronique Physique | Dispositif de calcul de somme ponderee et etage de sommation numerique pour camera a scintillation compose de tels dispositifs |
| US4899054A (en) * | 1988-01-19 | 1990-02-06 | General Electric Company | Gamma camera with image uniformity by energy correction offsets |
| FR2650397B1 (fr) * | 1989-07-28 | 1991-10-04 | Informatek Ste Nle | Dispositif a scintillation utilisable pour mesurer l'attenuation par tomographie de transmission |
| US5171998A (en) * | 1990-06-14 | 1992-12-15 | Engdahl John C | Gamma ray imaging detector |
| DE4134435C2 (de) * | 1991-10-18 | 1994-06-01 | Forschungszentrum Juelich Gmbh | Vorrichtung zur Ermittlung der Dichteverteilung von in menschliches Gewebe gebrachten Positronen |
| US5296709A (en) * | 1992-06-04 | 1994-03-22 | Picker International, Inc. | Uniformity correction of whole body images taken with non-rectangular detectors |
| US5545898A (en) * | 1994-12-13 | 1996-08-13 | Park Medical Systems, Inc. | Scintillation camera position calculation with uniform resolution using variance injection |
| US7638760B1 (en) | 2004-05-28 | 2009-12-29 | Gvi Technology Partners, Ltd. | Method for tracking and correcting the baseline of a radiation detector |
| US8014850B2 (en) * | 2004-07-01 | 2011-09-06 | Gvi Technology Partners, Ltd. | Initiation of dynamic data acquisition |
| US7502500B2 (en) * | 2004-09-30 | 2009-03-10 | Gvi Technology Partners, Ltd. | Automated processing of dynamic cardiac acquisition data |
| US8231414B2 (en) * | 2004-10-04 | 2012-07-31 | Gvi Technology Partners, Ltd. | Sensor interconnect system |
| US7612343B2 (en) * | 2006-10-16 | 2009-11-03 | Gvi Medical Devices | Collimator for radiation detectors and method of use |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3752988A (en) * | 1971-06-01 | 1973-08-14 | Dresser Ind | Circuit for reducing pulse pile-up in pulse detection systems |
| US3774032A (en) * | 1971-10-22 | 1973-11-20 | Nuclear Data Ltd | Attenuated light coupling between scintillator and photomultiplier |
| US3745345A (en) * | 1971-11-09 | 1973-07-10 | Nuclear Chicago Corp | Radiation imaging device |
| US3904530A (en) * | 1971-11-15 | 1975-09-09 | Picker Corp | Scintillation camera |
| US3752981A (en) * | 1972-03-10 | 1973-08-14 | Searle & Co | Scintillation camera with improved resolution |
| US3851177A (en) * | 1973-02-23 | 1974-11-26 | Searle & Co | Scintillation camera with improved linearity |
| DE2328386A1 (de) * | 1973-06-04 | 1975-01-02 | Alvin S Blum | Verfahren und vorrichtung zur lokalisierung und anzeige von strahlungsquellen |
| US3964059A (en) * | 1974-06-19 | 1976-06-15 | Bell Telephone Laboratories, Incorporated | Method and apparatus for statistical counting |
-
1977
- 1977-04-28 AU AU24664/77A patent/AU505730B2/en not_active Expired
- 1977-04-28 GB GB17839/77A patent/GB1575325A/en not_active Expired
- 1977-05-04 DE DE19772719837 patent/DE2719837A1/de not_active Ceased
- 1977-05-06 CA CA277,902A patent/CA1085973A/en not_active Expired
- 1977-05-06 FR FR7713913A patent/FR2350615A1/fr active Granted
- 1977-05-07 JP JP5256377A patent/JPS52137180A/ja active Pending
- 1977-08-05 US US05/822,351 patent/US4151416A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CA1085973A (en) | 1980-09-16 |
| AU505730B2 (en) | 1979-11-29 |
| FR2350615B1 (https=) | 1982-05-14 |
| FR2350615A1 (fr) | 1977-12-02 |
| JPS52137180A (en) | 1977-11-16 |
| AU2466477A (en) | 1978-11-02 |
| DE2719837A1 (de) | 1977-12-08 |
| US4151416A (en) | 1979-04-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |