FI117784B - Menetelmä radiograafisen filmin valotusajan automaattista määrittämistä varten ja järjestelmä sen toteuttamiseksi - Google Patents
Menetelmä radiograafisen filmin valotusajan automaattista määrittämistä varten ja järjestelmä sen toteuttamiseksi Download PDFInfo
- Publication number
- FI117784B FI117784B FI913242A FI913242A FI117784B FI 117784 B FI117784 B FI 117784B FI 913242 A FI913242 A FI 913242A FI 913242 A FI913242 A FI 913242A FI 117784 B FI117784 B FI 117784B
- Authority
- FI
- Finland
- Prior art keywords
- exposure
- film
- amount
- steps
- time
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 93
- 230000006870 function Effects 0.000 claims description 89
- 230000003287 optical effect Effects 0.000 claims description 59
- 101100011511 Mus musculus Elovl6 gene Proteins 0.000 claims description 25
- 238000005259 measurement Methods 0.000 claims description 24
- 238000001514 detection method Methods 0.000 claims description 22
- 230000000694 effects Effects 0.000 claims description 13
- 230000005855 radiation Effects 0.000 claims description 12
- 230000008859 change Effects 0.000 claims description 11
- 230000010354 integration Effects 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000012790 confirmation Methods 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 2
- 101150021123 msrA gene Proteins 0.000 claims 1
- 230000001960 triggered effect Effects 0.000 claims 1
- 238000001228 spectrum Methods 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 238000012937 correction Methods 0.000 description 5
- 238000005286 illumination Methods 0.000 description 3
- 230000000977 initiatory effect Effects 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 206010000234 Abortion spontaneous Diseases 0.000 description 1
- 206010050013 Abulia Diseases 0.000 description 1
- 241000287828 Gallus gallus Species 0.000 description 1
- 238000002083 X-ray spectrum Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000010405 anode material Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000003542 behavioural effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000009607 mammography Methods 0.000 description 1
- 208000015994 miscarriage Diseases 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 208000000995 spontaneous abortion Diseases 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
Classifications
-
- 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
- A61B6/58—Testing, adjusting or calibrating thereof
- A61B6/582—Calibration
- A61B6/583—Calibration using calibration phantoms
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05G—X-RAY TECHNIQUE
- H05G1/00—X-ray apparatus involving X-ray tubes; Circuits therefor
- H05G1/08—Electrical details
- H05G1/26—Measuring, controlling or protecting
- H05G1/30—Controlling
- H05G1/46—Combined control of different quantities, e.g. exposure time as well as voltage or current
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medical Informatics (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Radiology & Medical Imaging (AREA)
- Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
- Pathology (AREA)
- Physics & Mathematics (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
- High Energy & Nuclear Physics (AREA)
- Animal Behavior & Ethology (AREA)
- Biophysics (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Toxicology (AREA)
- X-Ray Techniques (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
- Radiography Using Non-Light Waves (AREA)
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9008628 | 1990-07-06 | ||
| FR9008625A FR2664395B1 (fr) | 1990-07-06 | 1990-07-06 | Procede de determination automatique de la duree d'exposition d'un film radiographique et systeme de mise en óoeuvre. |
| FR9008625 | 1990-07-06 | ||
| FR9008628A FR2664398B1 (fr) | 1990-07-06 | 1990-07-06 | Procede de determination automatique de la duree d'exposition d'un film radiographique a partir d'une cassette de radiologie avec cellule detectrice incorporee et systeme de mise en óoeuvre. |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| FI913242A0 FI913242A0 (fi) | 1991-07-04 |
| FI913242A FI913242A (fi) | 1992-01-07 |
| FI117784B true FI117784B (fi) | 2007-02-15 |
Family
ID=26228132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI913242A FI117784B (fi) | 1990-07-06 | 1991-07-04 | Menetelmä radiograafisen filmin valotusajan automaattista määrittämistä varten ja järjestelmä sen toteuttamiseksi |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US5218625A (de) |
| EP (1) | EP0465360B1 (de) |
| JP (1) | JP3371372B2 (de) |
| DE (1) | DE69106953T2 (de) |
| FI (1) | FI117784B (de) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE9219111U1 (de) * | 1992-07-10 | 1998-01-22 | Siemens AG, 80333 München | Röntgenbelichtungsautomat für die Mammographie |
| US5333168A (en) * | 1993-01-29 | 1994-07-26 | Oec Medical Systems, Inc. | Time-based attenuation compensation |
| FR2703237B1 (fr) * | 1993-03-29 | 1995-05-19 | Ge Medical Syst Sa | Mammographe équipé d'un dispositif de prises en vues stéréotaxiques à détecteur numérique et procédé d'utilisation d'un tel mammographe . |
| US5734740A (en) * | 1994-10-31 | 1998-03-31 | University Of Florida | Method for automated radiographic quality assurance |
| US6192105B1 (en) | 1998-11-25 | 2001-02-20 | Communications & Power Industries Canada Inc. | Method and device to calibrate an automatic exposure control device in an x-ray imaging system |
| FR2786389B1 (fr) | 1998-11-27 | 2001-01-26 | Ge Medical Syst Sa | Procede de reglage de la configuration en radiologie numerique |
| US6795528B2 (en) * | 2001-01-12 | 2004-09-21 | Canon Kabushiki Kaisha | Radiographic apparatus, radiographic method, and computer-readable storage medium |
| US6827489B2 (en) * | 2001-11-01 | 2004-12-07 | Ge Medical Systems Global Technology Company, Llc | Low-dose exposure aided positioning (LEAP) for digital radiography |
| FI113897B (fi) * | 2001-11-23 | 2004-06-30 | Planmed Oy | Automaattivalotusmenetelmä ja automaattivalotusjärjestelmä |
| FR2849983A1 (fr) * | 2003-01-10 | 2004-07-16 | Ge Med Sys Global Tech Co Llc | Procede de reglage du debit de rayonnement d'un tube a rayons x |
| JP4494355B2 (ja) * | 2006-03-07 | 2010-06-30 | 富士フイルム株式会社 | 放射線画像撮影装置及び放射線画像撮影装置の制御方法 |
| DE112011102230T5 (de) | 2010-06-29 | 2013-06-06 | Honda Motor Co., Ltd. | Doppelkupplungsgetriebe |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2062633C3 (de) * | 1970-12-18 | 1981-06-11 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Röntgenbelichtungsautomat |
| US3974385A (en) * | 1972-12-06 | 1976-08-10 | Siemens Aktiengesellschaft | X-ray diagnostic apparatus |
| DE2329414A1 (de) * | 1973-06-08 | 1975-01-02 | Siemens Ag | Roentgendiagnostikapparat zur anfertigung von roentgenaufnahmen mit einem zeitschalter zur bestimmung der aufnahmedauer |
| US4178508A (en) * | 1977-07-30 | 1979-12-11 | Kabushiki Kaisha Morita Seisakusho | Device for controlling amount of X-ray irradiation |
| NL7710052A (nl) * | 1977-09-14 | 1979-03-16 | Philips Nv | Inrichting voor computer-tomografie. |
| US4250103A (en) * | 1978-12-27 | 1981-02-10 | The Boeing Company | Radiographic apparatus and method for monitoring film exposure time |
| FR2584504B1 (fr) * | 1985-07-04 | 1989-03-17 | Thomson Cgr | Procede de determination automatique de l'exposition d'un film radiographique, et dispositif exposeur automatique pour installation de radiodiagnostic mettant en oeuvre ledit procede |
| FI79241C (fi) * | 1985-08-29 | 1989-12-11 | Orion Yhtymae Oy | Foerfarande och anordning foer reglering av roentgenstraolningen vid en roentgenanordning, speciellt en mammografianordning. |
| US4763343A (en) * | 1986-09-23 | 1988-08-09 | Yanaki Nicola E | Method and structure for optimizing radiographic quality by controlling X-ray tube voltage, current, focal spot size and exposure time |
| US4811374A (en) * | 1986-11-13 | 1989-03-07 | Medicor Usa Ltd. | Apparatus for setting exposure parameters of an X-ray generator |
| DE3641992A1 (de) * | 1986-12-09 | 1988-06-16 | Philips Patentverwaltung | Verfahren zum automatischen belichten von roentgenaufnahmen, insbesondere fuer die mammographie |
| US4831642A (en) * | 1987-09-23 | 1989-05-16 | Gendex Corporation | MAS regulator circuit for high frequency medical X-ray generator |
-
1991
- 1991-07-03 EP EP91401835A patent/EP0465360B1/de not_active Expired - Lifetime
- 1991-07-03 DE DE69106953T patent/DE69106953T2/de not_active Expired - Fee Related
- 1991-07-04 FI FI913242A patent/FI117784B/fi active IP Right Grant
- 1991-07-05 US US07/726,205 patent/US5218625A/en not_active Expired - Lifetime
- 1991-07-06 JP JP19253591A patent/JP3371372B2/ja not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| DE69106953T2 (de) | 1995-06-22 |
| DE69106953D1 (de) | 1995-03-09 |
| FI913242A (fi) | 1992-01-07 |
| JPH04229994A (ja) | 1992-08-19 |
| US5218625A (en) | 1993-06-08 |
| FI913242A0 (fi) | 1991-07-04 |
| JP3371372B2 (ja) | 2003-01-27 |
| EP0465360B1 (de) | 1995-01-25 |
| EP0465360A1 (de) | 1992-01-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| FI117784B (fi) | Menetelmä radiograafisen filmin valotusajan automaattista määrittämistä varten ja järjestelmä sen toteuttamiseksi | |
| US7431500B2 (en) | Dynamic exposure control in radiography | |
| EP0432119B1 (de) | Verfahren zur Regelung der Belichtungszeit eines Röntgengerätes, insbesondere für die Mammographie | |
| US6067343A (en) | X-ray device including a primary diaphragm device | |
| US4797905A (en) | X-ray generator incorporating dose rate control | |
| WO2009142166A1 (ja) | Ｘ線診断装置 | |
| CA1262191A (en) | X-ray examination system and method of controlling an exposure therein | |
| FI117785B (fi) | Menetelmä radiograafisen filmin vastaanottaman valomäärän estimoimiseksi ja kalibroimiseksi | |
| FI117786B (fi) | Menetelmä radiograafisen filmin epäresiprookkisuutta vastaavan funktion määrittämiseksi | |
| US2401288A (en) | Method of and apparatus for measuring radiations | |
| JP2009042233A (ja) | 放射線センサによって吸収される照射線量を決定する方法 | |
| US5371777A (en) | Automatic x-ray exposure unit for mammography | |
| JP2000157524A (ja) | デジタル放射線撮影におけるコンフィグレ―ションの調整方法 | |
| JP3204036B2 (ja) | Ｘ線装置およびｋエッジフィルタ | |
| Bednarek et al. | Comparison of modified bootstrap and conventional sensitometry in medical radiography | |
| JP3333940B2 (ja) | Ｘ線を使用して層の厚みを測定する装置の較正装置および較正方法 | |
| JPH02112786A (ja) | 熱蛍光線量測定方法および装置 | |
| Buhr et al. | An interlaboratory measurement of screen‐film speed and average gradient according to ISO 9236‐1 | |
| CA2254478A1 (en) | Method and device to calibrate an automatic exposure control device in an x-ray imaging system | |
| Rossi | Evaluation of a device for indirect assessment of automatic exposure control systems | |
| JP2004528063A (ja) | 放射線装置の較正方法及び放射線装置 | |
| FR2664395A1 (fr) | Procede de determination automatique de la duree d'exposition d'un film radiographique et systeme de mise en óoeuvre. | |
| JPH08313635A (ja) | 蛍光ガラス線量計測定装置 | |
| JPS6261905B2 (de) | ||
| FR2664398A1 (fr) | Procede de determination automatique de la duree d'exposition d'un film radiographique a partir d'une cassette de radiologie avec cellule detectrice incorporee et systeme de mise en óoeuvre. |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG | Patent granted |
Ref document number: 117784 Country of ref document: FI |