EP1598833A1 - Plaque de support pour une couche d'enregistrement destinée au stockage d'images radiographiques - Google Patents

Plaque de support pour une couche d'enregistrement destinée au stockage d'images radiographiques Download PDF

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Publication number
EP1598833A1
EP1598833A1 EP04102247A EP04102247A EP1598833A1 EP 1598833 A1 EP1598833 A1 EP 1598833A1 EP 04102247 A EP04102247 A EP 04102247A EP 04102247 A EP04102247 A EP 04102247A EP 1598833 A1 EP1598833 A1 EP 1598833A1
Authority
EP
European Patent Office
Prior art keywords
storage phosphor
phosphor plate
substrate layer
ray information
layer
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.)
Granted
Application number
EP04102247A
Other languages
German (de)
English (en)
Other versions
EP1598833B1 (fr
Inventor
Günther Schindlbeck
Olaf Klabunde
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Agfa Gevaert Healthcare GmbH
Original Assignee
Agfa Gevaert AG
Agfa Gevaert Healthcare GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Agfa Gevaert AG, Agfa Gevaert Healthcare GmbH filed Critical Agfa Gevaert AG
Priority to EP04102247A priority Critical patent/EP1598833B1/fr
Priority to DE502004012256T priority patent/DE502004012256D1/de
Priority to AT04102247T priority patent/ATE500595T1/de
Priority to US11/112,639 priority patent/US7514697B2/en
Publication of EP1598833A1 publication Critical patent/EP1598833A1/fr
Application granted granted Critical
Publication of EP1598833B1 publication Critical patent/EP1598833B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
    • G21K4/00—Conversion screens for the conversion of the spatial distribution of X-rays or particle radiation into visible images, e.g. fluoroscopic screens
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24033—Structurally defined web or sheet [e.g., overall dimension, etc.] including stitching and discrete fastener[s], coating or bond

Definitions

  • the invention relates to a storage phosphor plate for storing X-ray information and a corresponding reader for reading in the Storage phosphor plate stored X-ray information according to the preamble of claims 1 and 8, respectively.
  • X-ray images can be stored in so-called storage phosphors, wherein the passing through an object, such as a patient, passing X-radiation is stored as a latent image in a phosphor layer.
  • the phosphor layer with stimulation light irradiated while stimulated to emit emission light.
  • the emission light whose intensity corresponds to the image stored in the phosphor layer, is detected by an optical detector and converted into electrical signals.
  • the electrical signals are processed as needed and finally for evaluation, in particular for medical diagnostic purposes, provided by an appropriate output device such.
  • B. a Monitor or printer a Monitor or printer.
  • Storage phosphor plates are known from the prior art, in which a storage phosphor layer is applied to a substrate layer of aluminum is.
  • a storage phosphor layer is applied to a substrate layer of aluminum is.
  • required flatness of the storage phosphor plate is not always guaranteed become. For example, it may be due to smaller bends or shocks to permanent deformation of the substrate layer come, which the accuracy in reading the stored in the phosphor layer storage Impair X-ray information.
  • the substrate layer a fiber composite material, which consists of one with fibers in the form of a Tissue reinforced plastic is formed.
  • the invention is based on the idea of using a fiber-reinforced substrate layer
  • plastic layer the fibers in the form of a fabric embedded in the plastic.
  • the substrate layer is characterized a correspondingly high degree of rigidity and thus evenness in the area of their entire surface with simultaneously high mechanical flexibility.
  • the storage phosphor plate according to the invention extremely robust Damage or permanent deformation due to bending or bumps.
  • the plastic used for the substrate layer is preferably around a synthetic resin.
  • a synthetic resin is epoxy, silicone, melamine, phenolic, polyimide or Polyester resin particularly suitable.
  • the tissue is preferably made Woven synthetic fibers, such as. As glass, plastic, aramid or polyester fibers.
  • the fiber composite is preferred from a reinforced with a fabric of glass fibers or carbon fibers Epoxy resin formed.
  • the fibers or yarns of the fabric are plain weave woven. Due to the plain weave of the fabric used is a extremely isotropic, d. H. direction independent, mechanical reinforcement of the Plastic reaches the substrate layer. This will be a high level Flatness of the storage phosphor plate in both directions of the plate surface equally guaranteed.
  • a further preferred embodiment of the storage phosphor plate provides the substrate layer has a desired thickness between about 0.1 mm and 4 mm. In this nominal thickness range, one is sufficient for many applications high flexibility and high rigidity at the same time. In particular Dimensions will be those properties in a range of nominal thickness between about 0.5 mm and 2 mm.
  • At least one surface of the substrate layer Has thickness variations of less than ⁇ 100 microns compared to a target thickness.
  • the invention achieved high rigidity of Substrate layer with a smooth texture of its surface combines what to a very high degree of flatness applied to the substrate layer
  • Storage phosphor layer leads.
  • thickness variations of less as ⁇ 20 ⁇ m the advantage is achieved in addition to a particularly high evenness, that the storage phosphor layer has a particularly homogeneous thickness can be applied to the substrate layer.
  • a correspondingly high quality of the surface For example, when pressing the substrate layer with accordingly designed pressing tools or subsequently by grinding and / or painting the surface can be achieved.
  • the corresponding reader for reading in the storage phosphor plate stored X-ray information comprises the storage phosphor plate according to the invention, a device for transporting and / or holding the Storage phosphor plate in a substantially flat position and a read head for reading the X-ray information stored in the storage phosphor plate while the storage phosphor plate in the substantially planar Location is transported or held.
  • the storage phosphor plate according to the invention in such readout devices with very high accuracy and reliability, as they are extremely Insensitive to bumps or bends when removing them from an X-ray cassette and during subsequent transport or holding the storage phosphor plate is during the reading. Even after bigger ones Bends or shocks when handling the storage phosphor plate This takes its original flat shape again and can with high Accuracy can be read out.
  • Fig. 1 shows a storage phosphor plate 1 in side view.
  • a storage phosphor layer 2 for storing X-ray information is here on a substrate layer 3 applied.
  • PIP Powder Image Plates
  • NIP Needle Image Plates
  • the storage phosphor layer 2 In the case of powder image plates, the storage phosphor layer 2 generally becomes by means of an adhesive layer (not shown) on the substrate layer. 3 glued.
  • the corresponding needle structures become the storage phosphor layer 2 by growing in a specifically controlled Growth process applied to the substrate layer 3.
  • Such an intermediate layer can, for example a thin aluminum coating, which for example is produced by vapor deposition on the substrate layer 3.
  • the thickness of the intermediate layer is chosen so that the mechanical properties of the Substrate layer 3 are substantially unaffected, and is typically only a few microns.
  • FIG. 2 shows a plan view of the substrate layer 3 of FIG. 1 Storage phosphor plate.
  • the substrate layer 3 consists according to the invention a fabric reinforced with a fabric.
  • a square section 4 of the substrate layer 3 greatly enlarged shown.
  • the tissue 5 can be seen which is woven from individual threads or yarns 6.
  • the fabric 5 has a so-called plain weave on, creating a particularly uniform reinforcing effect through the fabric 5 is achieved in both directions of the plane of the substrate layer 3.
  • alternative but other tissue forms can be used, such. Legs Twill, atlas, unidirectional or false-twist binding.
  • a so-called filament fabric is used as the fabric 5, in which one composed of a plurality of individual filaments Yarn is woven.
  • Typical filament diameters are between about 5 and 10 ⁇ m
  • typical yarns typically contain between 1000 and 12000 Filaments, which corresponds to a yarn thickness between 1 K and 12 K.
  • substrate layers according to the invention are made with synthetic resin impregnated fabric, a so-called prepreg, produced under Heat and pressure to a corresponding plate of fiber composite material is cured.
  • the substrate layer 3 is a fiber composite material made of glass filament fabric and epoxy resin, in particular of the type Hgw 2372, Hgw 2372.1, Hgw 2372.4 or Hgw 2372.4 H according to the German Standard DIN 7735 or G10, G11 or FR4 according to the US standard NEMA L1.
  • a storage phosphor layer 2 of Type of Powder Image Plate (PIP) applied, in particular glued.
  • the substrate layer 3 is a fiber composite material carbon fiber fabrics, in particular plain weave, and Epoxy resin used.
  • the storage phosphor layer. 2 of the type of Needle Image Plate (NIP).
  • NIP Needle Image Plate
  • This storage phosphor plate 1 lines also by a high rigidity and by a particularly high optical quality. It is also sufficiently permeable to X-rays and especially for mammographic radiographs suitable, in which by the breast tissue to be examined and the X-ray cassette including storage phosphor plate passing through X-ray must be detected with a sensor to an automatic dose comparison measurement (the so-called Automatic Exposure Control).
  • Fig. 3 shows a first reader 10 for reading the in the storage phosphor plate 1 stored X-ray information. After an x-ray becomes the storage phosphor plate 1 in a light-tight X-ray cassette 11 transported to the reader. Before reading the X-ray cassette 11 with the storage phosphor plate 1 therein at least partially in the reader 10 introduced. In this position, the storage phosphor plate 1 with a mechanism, not shown, from the X-ray cassette 11 taken and locked to a support plate 12, as shown in the example of FIG.
  • the holding plate 12 is in this case designed so that they the storage phosphor plate 1 e.g. by form or adhesion and / or by magnetic or electrostatic Can hold on to attractions or negative pressure. Because of your high rigidity shows the storage phosphor plate 1 while a high degree Flatness.
  • a movable reading head 13 can now be arranged in the double arrow Direction of movement are moved over the storage phosphor plate 1 and thereby capture the x-ray information stored therein.
  • the movable reading head 13 is preferably designed as a so-called line scanner, in which by means of a line light source in each case a whole line of the storage phosphor layer irradiated with stimulation light and emanating from this line Emission light is detected with a linear detector array.
  • a line scanner by means of a line light source in each case a whole line of the storage phosphor layer irradiated with stimulation light and emanating from this line Emission light is detected with a linear detector array.
  • Fig. 4 shows a second reader 20 for reading the in the storage phosphor plate 1 stored X-ray information. Also in this example is one X-ray cassette 11 with a storage phosphor plate 1 therein partially introduced into the reader 20.
  • the storage phosphor plate 1 was in already shown from the X-ray cassette 11 by means of suitable removal devices taken and fed to a transport device 14, which move the storage phosphor layer 1 past a stationary read head 15 can.
  • the direction of movement of the storage phosphor layer 1 during readout is indicated in Fig. 4 by a double arrow.
  • the storage phosphor plate according to the invention retains 1 their flat shape, even if they - as indicated in this example - to only a few places by the transport device 14 is supported.
  • the stationary read head 15 may also, as already in connection explained with Fig. 3, to act a line scanner.
  • the in the storage phosphor layer excited emission light in certain temporal Distances, and thus location-dependent, recorded By successive readout of a Variety of individual lines in accordance with moving storage phosphor plate. 1 eventually becomes a two-dimensional image of the one in the storage phosphor layer stored X-ray information received. Details of such a scanner are described for example in the patent US 6,501,088 B1.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Conversion Of X-Rays Into Visible Images (AREA)
  • Laminated Bodies (AREA)
EP04102247A 2004-05-21 2004-05-21 Plaque de support pour une couche d'enregistrement destinée au stockage d'images radiographiques Expired - Lifetime EP1598833B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP04102247A EP1598833B1 (fr) 2004-05-21 2004-05-21 Plaque de support pour une couche d'enregistrement destinée au stockage d'images radiographiques
DE502004012256T DE502004012256D1 (de) 2004-05-21 2004-05-21 Speicherleuchtstoffplatte zur Speicherung von Röntgeninformation
AT04102247T ATE500595T1 (de) 2004-05-21 2004-05-21 Speicherleuchtstoffplatte zur speicherung von röntgeninformation
US11/112,639 US7514697B2 (en) 2004-05-21 2005-04-22 Storage phosphor plate for the storage of X-ray information

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04102247A EP1598833B1 (fr) 2004-05-21 2004-05-21 Plaque de support pour une couche d'enregistrement destinée au stockage d'images radiographiques

Publications (2)

Publication Number Publication Date
EP1598833A1 true EP1598833A1 (fr) 2005-11-23
EP1598833B1 EP1598833B1 (fr) 2011-03-02

Family

ID=34929123

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04102247A Expired - Lifetime EP1598833B1 (fr) 2004-05-21 2004-05-21 Plaque de support pour une couche d'enregistrement destinée au stockage d'images radiographiques

Country Status (4)

Country Link
US (1) US7514697B2 (fr)
EP (1) EP1598833B1 (fr)
AT (1) ATE500595T1 (fr)
DE (1) DE502004012256D1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE502004007905D1 (de) * 2004-09-22 2008-10-02 Agfa Gevaert Healthcare Gmbh Vorrichtung und Verfahren zum Auslesen von in einer Speicherleuchtstoffplatte gespeicherten Röntgeninformationen
EP1791023B1 (fr) * 2005-11-24 2009-01-14 Agfa-Gevaert HealthCare GmbH Dispositif et procédé destinées à la lecture d`un disque fluorescent de Mémoire
DE502005006583D1 (de) * 2005-11-24 2009-03-19 Agfa Gevaert Healthcare Gmbh Kassette für eine Speicherleuchtstoffplatte sowie Vorrichtung zur Entnahme der Speicherleuchtstoffplatte aus der Kassette
EP2128697B1 (fr) * 2008-05-28 2016-02-17 Agfa HealthCare N.V. Dispositif destiné à la lecture d'informations radiographiques stockées dans des plaques fluorescentes de mémoire
EP2128696B1 (fr) * 2008-05-28 2016-09-21 Agfa HealthCare N.V. Dispositif destiné à la lecture d'informations radiographiques stockées dans des plaques fluorescentes de mémoire
JP6520121B2 (ja) * 2012-11-21 2019-05-29 コニカミノルタ株式会社 可搬型放射線画像撮影装置
US11974869B2 (en) * 2022-01-25 2024-05-07 Kurt Hainze Portable x-ray cassette positioning system and method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020130272A1 (en) * 2001-03-13 2002-09-19 Commissariat A L'energie Atomique Screen for converting X-rays into light photons
EP1324118A1 (fr) * 2001-12-20 2003-07-02 Agfa-Gevaert AG Feuille luminescente stimulable pour radiographie
EP1385050A1 (fr) * 2002-07-25 2004-01-28 Konica Corporation Panneau pour la conversion d'images et procédé pour sa préparation
EP1396864A2 (fr) * 2002-08-29 2004-03-10 Konica Corporation Panneau pour la conversion d'images obtenues par rayonnement et méthode de préparation
EP1435628A2 (fr) * 2002-12-27 2004-07-07 Konica Minolta Holdings, Inc. Panneau pour la conversion d'images obtenues par rayonnement

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JPH0631910B2 (ja) * 1986-12-03 1994-04-27 コニカ株式会社 発熱体を組込んだ放射線画像変換パネル
JPS63152637A (ja) * 1986-12-16 1988-06-25 Toray Ind Inc 樹脂の補強用プリフオ−ム材
JPH0823095B2 (ja) * 1989-06-06 1996-03-06 東レ株式会社 補強繊維織物
WO1990015175A1 (fr) * 1989-06-08 1990-12-13 Kanebo Ltd. Textile en fibres longues d'alumine de grande purete, fibre d'alumine de grande purete utilisee pour produire ledit textile et procede de production du textile et de la fibre
US5441251A (en) 1991-04-19 1995-08-15 Fuji Photo Film Co., Ltd. Sheet article containing cassette and system
US5783278A (en) * 1995-03-08 1998-07-21 Toray Industries, Inc. Reinforcing woven fabric and method and apparatus for manufacturing the same
DE19752925C2 (de) 1997-11-28 2003-11-27 Agfa Gevaert Ag Vorrichtung zum Auslesen von einer in einem Phosphorträger abgespeicherten Information und Röntgenkassette
DE19860247C1 (de) * 1998-12-24 2000-10-05 Agfa Gevaert Ag Vorrichtung zum Auslesen von Informationen aus Speicherfolien
EP1065528A3 (fr) 1999-07-02 2006-04-05 Agfa-Gevaert Procédé et appareil pour la lecture d'images de radiation
EP1065527A3 (fr) * 1999-07-02 2006-04-05 Agfa-Gevaert Procédé et appareil pour la lecture d'images de radiation
US7081631B2 (en) * 2001-04-03 2006-07-25 Fuji Photo Film Co., Ltd. Radiation image storage panel
JP2003029359A (ja) * 2001-07-13 2003-01-29 Fuji Photo Film Co Ltd 放射線画像情報読取方法および装置
DE50111703D1 (de) 2001-12-20 2007-02-01 Agfa Gevaert Healthcare Gmbh Röntgenkassette für eine Speicherleuchtstofffolie
DE50112570D1 (de) 2001-12-20 2007-07-12 Agfa Gevaert Healthcare Gmbh Speicherleuchtstofffolie für Röntgenaufnahmen
US7199379B2 (en) * 2002-06-28 2007-04-03 Agfa-Gevaert Binderless storage phosphor screen
US20040159801A1 (en) * 2003-01-09 2004-08-19 Konica Minolta Holdings, Inc. Radiographic image conversion panel
US20040168900A1 (en) 2003-02-27 2004-09-02 Peter Tung Staged heat and mass transfer applications
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Publication number Priority date Publication date Assignee Title
US20020130272A1 (en) * 2001-03-13 2002-09-19 Commissariat A L'energie Atomique Screen for converting X-rays into light photons
EP1324118A1 (fr) * 2001-12-20 2003-07-02 Agfa-Gevaert AG Feuille luminescente stimulable pour radiographie
EP1385050A1 (fr) * 2002-07-25 2004-01-28 Konica Corporation Panneau pour la conversion d'images et procédé pour sa préparation
EP1396864A2 (fr) * 2002-08-29 2004-03-10 Konica Corporation Panneau pour la conversion d'images obtenues par rayonnement et méthode de préparation
EP1435628A2 (fr) * 2002-12-27 2004-07-07 Konica Minolta Holdings, Inc. Panneau pour la conversion d'images obtenues par rayonnement

Also Published As

Publication number Publication date
US20050260517A1 (en) 2005-11-24
ATE500595T1 (de) 2011-03-15
EP1598833B1 (fr) 2011-03-02
DE502004012256D1 (de) 2011-04-14
US7514697B2 (en) 2009-04-07

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