EP2434955A1 - Dental fluoroscopic imaging system - Google Patents
Dental fluoroscopic imaging systemInfo
- Publication number
- EP2434955A1 EP2434955A1 EP09833773A EP09833773A EP2434955A1 EP 2434955 A1 EP2434955 A1 EP 2434955A1 EP 09833773 A EP09833773 A EP 09833773A EP 09833773 A EP09833773 A EP 09833773A EP 2434955 A1 EP2434955 A1 EP 2434955A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- flat panel
- dental
- emitter
- rays
- panel detector
- 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.)
- Ceased
Links
- 238000003384 imaging method Methods 0.000 title claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 25
- 238000002594 fluoroscopy Methods 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 6
- 230000008569 process Effects 0.000 claims abstract description 6
- 238000012545 processing Methods 0.000 claims abstract description 6
- 238000012546 transfer Methods 0.000 claims abstract description 3
- 238000005516 engineering process Methods 0.000 claims description 14
- 238000013459 approach Methods 0.000 claims description 3
- 239000004065 semiconductor Substances 0.000 claims description 3
- 230000000295 complement effect Effects 0.000 claims description 2
- 239000010409 thin film Substances 0.000 claims description 2
- XQPRBTXUXXVTKB-UHFFFAOYSA-M caesium iodide Chemical compound [I-].[Cs+] XQPRBTXUXXVTKB-UHFFFAOYSA-M 0.000 claims 4
- 239000011669 selenium Substances 0.000 claims 4
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 claims 3
- 229910021417 amorphous silicon Inorganic materials 0.000 claims 3
- 229910052711 selenium Inorganic materials 0.000 claims 3
- 239000000919 ceramic Substances 0.000 claims 2
- 229910052751 metal Inorganic materials 0.000 claims 2
- 239000002184 metal Substances 0.000 claims 2
- 229910017115 AlSb Inorganic materials 0.000 claims 1
- 229910004829 CaWO4 Inorganic materials 0.000 claims 1
- 229910004613 CdTe Inorganic materials 0.000 claims 1
- 229910004611 CdZnTe Inorganic materials 0.000 claims 1
- 229910004262 HgTe Inorganic materials 0.000 claims 1
- 229910002249 LaCl3 Inorganic materials 0.000 claims 1
- 229910003016 Lu2SiO5 Inorganic materials 0.000 claims 1
- 229910002665 PbTe Inorganic materials 0.000 claims 1
- 229910000577 Silicon-germanium Inorganic materials 0.000 claims 1
- 229910007709 ZnTe Inorganic materials 0.000 claims 1
- -1 ZnWO4 Inorganic materials 0.000 claims 1
- AXQKVSDUCKWEKE-UHFFFAOYSA-N [C].[Ge].[Si] Chemical compound [C].[Ge].[Si] AXQKVSDUCKWEKE-UHFFFAOYSA-N 0.000 claims 1
- 229910052782 aluminium Inorganic materials 0.000 claims 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims 1
- 229910003481 amorphous carbon Inorganic materials 0.000 claims 1
- 229910001632 barium fluoride Inorganic materials 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 claims 1
- SILMSBFCJHBWJS-UHFFFAOYSA-K bis(germine-1-carbonyloxy)bismuthanyl germine-1-carboxylate Chemical compound [Bi+3].[O-]C(=O)[Ge]1=CC=CC=C1.[O-]C(=O)[Ge]1=CC=CC=C1.[O-]C(=O)[Ge]1=CC=CC=C1 SILMSBFCJHBWJS-UHFFFAOYSA-K 0.000 claims 1
- UHYPYGJEEGLRJD-UHFFFAOYSA-N cadmium(2+);selenium(2-) Chemical compound [Se-2].[Cd+2] UHYPYGJEEGLRJD-UHFFFAOYSA-N 0.000 claims 1
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 claims 1
- 229910001634 calcium fluoride Inorganic materials 0.000 claims 1
- 239000003990 capacitor Substances 0.000 claims 1
- 239000000835 fiber Substances 0.000 claims 1
- RZILCCPWPBTYDO-UHFFFAOYSA-N fluometuron Chemical compound CN(C)C(=O)NC1=CC=CC(C(F)(F)F)=C1 RZILCCPWPBTYDO-UHFFFAOYSA-N 0.000 claims 1
- DQZARQCHJNPXQP-UHFFFAOYSA-N gadolinium;sulfur monoxide Chemical compound [Gd].S=O DQZARQCHJNPXQP-UHFFFAOYSA-N 0.000 claims 1
- 229910052732 germanium Inorganic materials 0.000 claims 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 claims 1
- 239000011521 glass Substances 0.000 claims 1
- ICAKDTKJOYSXGC-UHFFFAOYSA-K lanthanum(iii) chloride Chemical compound Cl[La](Cl)Cl ICAKDTKJOYSXGC-UHFFFAOYSA-K 0.000 claims 1
- RQQRAHKHDFPBMC-UHFFFAOYSA-L lead(ii) iodide Chemical compound I[Pb]I RQQRAHKHDFPBMC-UHFFFAOYSA-L 0.000 claims 1
- NZOCXFRGADJTKP-UHFFFAOYSA-K lutetium(3+);triiodide Chemical compound I[Lu](I)I NZOCXFRGADJTKP-UHFFFAOYSA-K 0.000 claims 1
- 239000011159 matrix material Substances 0.000 claims 1
- YFDLHELOZYVNJE-UHFFFAOYSA-L mercury diiodide Chemical compound I[Hg]I YFDLHELOZYVNJE-UHFFFAOYSA-L 0.000 claims 1
- 229910044991 metal oxide Inorganic materials 0.000 claims 1
- 150000004706 metal oxides Chemical class 0.000 claims 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims 1
- 239000000523 sample Substances 0.000 claims 1
- OCGWQDWYSQAFTO-UHFFFAOYSA-N tellanylidenelead Chemical compound [Pb]=[Te] OCGWQDWYSQAFTO-UHFFFAOYSA-N 0.000 claims 1
- 230000001131 transforming effect Effects 0.000 abstract 1
- 238000002601 radiography Methods 0.000 description 9
- 239000010408 film Substances 0.000 description 7
- 230000005855 radiation Effects 0.000 description 4
- 230000004297 night vision Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- NYZDVLMJPDRZEA-UHFFFAOYSA-N barium(2+);platinum(2+);tetracyanide Chemical compound [Ba+2].[Pt+2].N#[C-].N#[C-].N#[C-].N#[C-] NYZDVLMJPDRZEA-UHFFFAOYSA-N 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 238000012822 chemical development Methods 0.000 description 1
- 238000012993 chemical processing Methods 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000004300 dark adaptation Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- PBYZMCDFOULPGH-UHFFFAOYSA-N tungstate Chemical compound [O-][W]([O-])(=O)=O PBYZMCDFOULPGH-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- A61B6/51—
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/44—Constructional features of apparatus for radiation diagnosis
- A61B6/4429—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units
- A61B6/4435—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units the source unit and the detector unit being coupled by a rigid structure
- A61B6/4441—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units the source unit and the detector unit being coupled by a rigid structure the rigid structure being a C-arm or U-arm
Definitions
- the present invention relates generally to the field of diagnostic radiology, and specifically to a dental fluoroscopic imaging system apparatus using flat panel detectors and emitters in C-arm/U-arm, O-arm configurations suitable for two dimensional (2D) and three dimensional (3D) dental fluoroscopy and the method of producing the same.
- Dental digital radiography is a form of x-ray imaging, where digital X-ray sensors are used instead of traditional photographic film. Advantages include time efficiency through bypassing chemical processing and the ability to digitally transfer and enhance images. Also less radiation can be used to produce a 2D still image of similar contrast to conventional film-based radiography. Some types of digital dental radiography sensors are small and thin enough that they can be placed intraorally or inside the mouth. Others are larger in size and are used extraorally or outside the mouth in order to obtain a dental image. The first intraoral X-rays imaging sensor available on the market was introduced following the principles described in US Patent No.
- CMOS complementary metal-oxide-semiconductor
- Fluoroscopy is a dynamic x-ray, or x-ray movie showing images of video frame rates. It differs from dental digital radiography in that dental digital radiography is static x-ray, or an x-ray picture. An analogy is that of a movie compared to a snapshot. The beginning of fluoroscopy can be traced back to 8 November 1895 when Wilhelm Roentgen noticed a barium platinocyanide screen fluorescing as a result of being exposed to what he would later call x-rays. The fluoroscopic image obtained in this way was rather faint. Thomas Edison quickly discovered that calcium tungstate screens produced brighter images and is credited with designing and producing the first commercially available fluoroscope.
- the first fluoroscope for dental use was described by William Herbert Rollins in 1896. Due to the limited light produced from the fluorescent screens, early radiologists were required to sit in a darkened room in which the procedure was to be performed, getting their eyes accustomed to the dark and thereby increasing their sensitivity to the light. The placement of the radiologist behind the screen resulted in significant radiation doses to the radiologist. Red adaptation goggles were developed by Wilhelm Trendelenburg in 1916 to address the problem of dark adaptation of the eyes, The resulting red light from the goggles' filtration correctly sensitized the physician's eyes prior to the procedure while still allowing him to receive enough light to function normally.
- the invention of X-ray image intensif ⁇ ers in the 1950s allowed the image on the screen to be visible under normal lighting conditions, as well as providing the option of recording the images with a conventional camera.
- Medical fluoroscopes also known as C- arms or mini C-arms are too large to fit in a dental operatory. The main reason is the size of one of their main components: > 6 inches diameter image intensif ⁇ ers.
- recent breakthroughs in imaging and night vision technologies made possible the miniaturization of the medical fluoroscope for dental use as disclosed in the Patent No. 6,543,936 of Feldman, 2003 by using small image intensifiers.
- Night vision image intensifiers (18-40 mm diameter) — like those used for military purposes - can convert fluoroscopy's low-radiation beam — after going through the patient's dental area - on a vivid video image. This image can be captured by a video digital camera chip and then displayed in real-time video on a monitor. Consequently, this breakthrough has allowed the fluoroscopy technology to fit in a dental operatory.
- Another attempt to reduce the medical fluoroscope size is seen in foreign Patents No. WO/2004/110277, WO/2005/072615 and WO/2005/110234 of Kim, 2004, 2005 and 2005 respectively.
- the X-ray CT unit irradiates the subject with X-rays from the second X-ray tube and acquires projection data from a beam of the X-rays that has passed through the subject, to reconstruct an image using the acquired projection data, and to obtain a tomographic image.
Abstract
Description
Claims
Applications Claiming Priority (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US20174608P | 2008-12-16 | 2008-12-16 | |
US20174408P | 2008-12-16 | 2008-12-16 | |
US20174508P | 2008-12-16 | 2008-12-16 | |
US65396408A | 2008-12-16 | 2008-12-16 | |
US20174708P | 2008-12-16 | 2008-12-16 | |
US20174808P | 2008-12-16 | 2008-12-16 | |
PCT/US2009/006648 WO2010071680A1 (en) | 2008-12-16 | 2009-12-22 | Dental fluoroscopic imaging system |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2434955A1 true EP2434955A1 (en) | 2012-04-04 |
EP2434955A4 EP2434955A4 (en) | 2014-01-01 |
Family
ID=42269100
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09833773.6A Ceased EP2434955A4 (en) | 2008-12-16 | 2009-12-22 | Dental fluoroscopic imaging system |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2434955A4 (en) |
WO (1) | WO2010071680A1 (en) |
Citations (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4160997A (en) * | 1974-05-14 | 1979-07-10 | Robert Schwartz | Intraoral fluoroscope |
US5391881A (en) * | 1992-06-30 | 1995-02-21 | Commissariat A L'energie Atomique | Ionizing radiation imaging device |
US5434418A (en) * | 1992-10-16 | 1995-07-18 | Schick; David | Intra-oral sensor for computer aided radiography |
US5510623A (en) * | 1995-02-24 | 1996-04-23 | Loral Fairchild Corp. | Center readout intra-oral image sensor |
WO1997048988A1 (en) * | 1996-06-18 | 1997-12-24 | Thermotrex Corp. | Imaging device |
US5771271A (en) * | 1997-04-16 | 1998-06-23 | Infimed, Inc. | Phototimer for radiology imaging |
WO2002052505A2 (en) * | 2000-12-22 | 2002-07-04 | Simage Oy | A radiation imaging system and scanning device |
JP2003088519A (en) * | 2001-09-19 | 2003-03-25 | Shimadzu Corp | Dental radiographic system |
US20040042588A1 (en) * | 2002-08-28 | 2004-03-04 | Imaging3, Inc. | Apparatus and method for three-dimensional imaging system |
EP1705478A1 (en) * | 2005-03-23 | 2006-09-27 | The General Electric Company | Phosphor film, imagining assembly and inspection method |
EP1706035A1 (en) * | 2003-11-21 | 2006-10-04 | Trophy Radiologie | Dental radiology apparatus and signal processing method used therewith |
US20070053498A1 (en) * | 2005-09-08 | 2007-03-08 | Schick Technologies, Inc. | Flexible intra-oral x-ray imaging device |
US20080063139A1 (en) * | 2005-05-02 | 2008-03-13 | Tuomas Pantsar | Extra-oral digital panoramic dental x-ray imaging system |
EP2009902A2 (en) * | 2007-06-26 | 2008-12-31 | FUJIFILM Corporation | Image detection device and method of driving image detector |
US20090261259A1 (en) * | 2008-04-17 | 2009-10-22 | Carestream Health, Inc. | Digital radiography panel with pressure-sensitive adhesive for optical coupling between scintillator screen and detector and method of manufacture |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI103177B (en) * | 1997-10-02 | 1999-05-14 | Planmeca Oy | X-ray imaging device for the skull area |
AU2887499A (en) * | 1998-03-02 | 1999-09-20 | Image Anaylsis, Inc. | Automated x-ray bone densitometer |
US6632089B2 (en) * | 1999-11-30 | 2003-10-14 | Orametrix, Inc. | Orthodontic treatment planning with user-specified simulation of tooth movement |
US6543936B2 (en) * | 2001-04-24 | 2003-04-08 | Daniel Uzbelger Feldman | Apparatus for diagnosis and/or treatment in the field of dentistry using fluoroscopic and conventional radiography |
CA2454634A1 (en) * | 2001-07-25 | 2003-02-06 | Giuseppe Rotondo | Real-time digital x-ray imaging apparatus |
US7317819B2 (en) * | 2002-08-28 | 2008-01-08 | Imaging3, Inc. | Apparatus and method for three-dimensional imaging |
-
2009
- 2009-12-22 EP EP09833773.6A patent/EP2434955A4/en not_active Ceased
- 2009-12-22 WO PCT/US2009/006648 patent/WO2010071680A1/en active Application Filing
Patent Citations (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4160997A (en) * | 1974-05-14 | 1979-07-10 | Robert Schwartz | Intraoral fluoroscope |
US5391881A (en) * | 1992-06-30 | 1995-02-21 | Commissariat A L'energie Atomique | Ionizing radiation imaging device |
US5434418A (en) * | 1992-10-16 | 1995-07-18 | Schick; David | Intra-oral sensor for computer aided radiography |
US5510623A (en) * | 1995-02-24 | 1996-04-23 | Loral Fairchild Corp. | Center readout intra-oral image sensor |
WO1997048988A1 (en) * | 1996-06-18 | 1997-12-24 | Thermotrex Corp. | Imaging device |
US5771271A (en) * | 1997-04-16 | 1998-06-23 | Infimed, Inc. | Phototimer for radiology imaging |
WO2002052505A2 (en) * | 2000-12-22 | 2002-07-04 | Simage Oy | A radiation imaging system and scanning device |
JP2003088519A (en) * | 2001-09-19 | 2003-03-25 | Shimadzu Corp | Dental radiographic system |
US20040042588A1 (en) * | 2002-08-28 | 2004-03-04 | Imaging3, Inc. | Apparatus and method for three-dimensional imaging system |
EP1706035A1 (en) * | 2003-11-21 | 2006-10-04 | Trophy Radiologie | Dental radiology apparatus and signal processing method used therewith |
EP1705478A1 (en) * | 2005-03-23 | 2006-09-27 | The General Electric Company | Phosphor film, imagining assembly and inspection method |
US20080063139A1 (en) * | 2005-05-02 | 2008-03-13 | Tuomas Pantsar | Extra-oral digital panoramic dental x-ray imaging system |
US20070053498A1 (en) * | 2005-09-08 | 2007-03-08 | Schick Technologies, Inc. | Flexible intra-oral x-ray imaging device |
EP2009902A2 (en) * | 2007-06-26 | 2008-12-31 | FUJIFILM Corporation | Image detection device and method of driving image detector |
US20090261259A1 (en) * | 2008-04-17 | 2009-10-22 | Carestream Health, Inc. | Digital radiography panel with pressure-sensitive adhesive for optical coupling between scintillator screen and detector and method of manufacture |
Non-Patent Citations (2)
Title |
---|
ROBERT A. STREET ET AL: "<title>Printed active-matrix TFT arrays for x-ray imaging (Invited Paper)</title>", PROCEEDINGS OF SPIE, vol. 5745, 20 April 2005 (2005-04-20), pages 7 - 17, XP055134918, ISSN: 0277-786X, DOI: 10.1117/12.593521 * |
See also references of WO2010071680A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP2434955A4 (en) | 2014-01-01 |
WO2010071680A1 (en) | 2010-06-24 |
WO2010071680A4 (en) | 2011-08-04 |
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