CA2349403C - Appareil pour mesurer l'attenuation non uniforme dans une camera a scintillations - Google Patents
Appareil pour mesurer l'attenuation non uniforme dans une camera a scintillations Download PDFInfo
- Publication number
- CA2349403C CA2349403C CA 2349403 CA2349403A CA2349403C CA 2349403 C CA2349403 C CA 2349403C CA 2349403 CA2349403 CA 2349403 CA 2349403 A CA2349403 A CA 2349403A CA 2349403 C CA2349403 C CA 2349403C
- Authority
- CA
- Canada
- Prior art keywords
- radiation
- patient
- detector
- casing
- annular support
- 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 - Fee Related
Links
- 230000005855 radiation Effects 0.000 claims abstract description 188
- 238000009826 distribution Methods 0.000 claims description 6
- LXQXZNRPTYVCNG-YPZZEJLDSA-N americium-241 Chemical compound [241Am] LXQXZNRPTYVCNG-YPZZEJLDSA-N 0.000 claims description 4
- 238000010408 sweeping Methods 0.000 claims description 2
- 230000007246 mechanism Effects 0.000 abstract description 4
- 238000010521 absorption reaction Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 230000002285 radioactive effect Effects 0.000 description 6
- 230000001360 synchronised effect Effects 0.000 description 6
- 239000013078 crystal Substances 0.000 description 4
- 230000009977 dual effect Effects 0.000 description 3
- 210000000056 organ Anatomy 0.000 description 3
- FVAUCKIRQBBSSJ-UHFFFAOYSA-M sodium iodide Chemical compound [Na+].[I-] FVAUCKIRQBBSSJ-UHFFFAOYSA-M 0.000 description 3
- 238000012937 correction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005251 gamma ray Effects 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000004936 stimulating effect Effects 0.000 description 2
- 210000001519 tissue Anatomy 0.000 description 2
- 239000011358 absorbing material Substances 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000000747 cardiac effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 210000004165 myocardium Anatomy 0.000 description 1
- 238000009828 non-uniform distribution Methods 0.000 description 1
- 238000009206 nuclear medicine Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 210000002976 pectoralis muscle Anatomy 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 235000009518 sodium iodide Nutrition 0.000 description 1
- 238000009827 uniform distribution Methods 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
- G01T1/1644—Static instruments for imaging the distribution of radioactivity in one or two dimensions using one or several scintillating elements; Radio-isotope cameras using an array of optically separate scintillation elements permitting direct location of scintillations
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/42—Arrangements for detecting radiation specially adapted for radiation diagnosis
- A61B6/4208—Arrangements for detecting radiation specially adapted for radiation diagnosis characterised by using a particular type of detector
- A61B6/4258—Arrangements for detecting radiation specially adapted for radiation diagnosis characterised by using a particular type of detector for detecting non x-ray radiation, e.g. gamma radiation
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medical Informatics (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- High Energy & Nuclear Physics (AREA)
- Molecular Biology (AREA)
- Optics & Photonics (AREA)
- General Health & Medical Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Biomedical Technology (AREA)
- Pathology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Biophysics (AREA)
- General Physics & Mathematics (AREA)
- Radiology & Medical Imaging (AREA)
- Heart & Thoracic Surgery (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Nuclear Medicine (AREA)
- Measurement Of Radiation (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2349403 CA2349403C (fr) | 2001-06-01 | 2001-06-01 | Appareil pour mesurer l'attenuation non uniforme dans une camera a scintillations |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2349403 CA2349403C (fr) | 2001-06-01 | 2001-06-01 | Appareil pour mesurer l'attenuation non uniforme dans une camera a scintillations |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2349403A1 CA2349403A1 (fr) | 2002-12-01 |
| CA2349403C true CA2349403C (fr) | 2008-02-05 |
Family
ID=4169178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2349403 Expired - Fee Related CA2349403C (fr) | 2001-06-01 | 2001-06-01 | Appareil pour mesurer l'attenuation non uniforme dans une camera a scintillations |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2349403C (fr) |
-
2001
- 2001-06-01 CA CA 2349403 patent/CA2349403C/fr not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2349403A1 (fr) | 2002-12-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |