Gent, Belgium
Gent, Belgium

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Patent
Agfa HealthCare N.V. | Date: 2017-02-08

The invention relates to an X-ray system comprising an X-ray source configured to generate X-ray radiation and/or an X-ray detector configured to detect X-ray radiation, at least two guide rails (20, 21), at least one carriage (10) on which the X-ray source and/or the X-ray detector is mounted, the carriage (10) comprising first guide wheels (12, 13) and second guide wheels (14, 15), and a drive unit (30) attached to the carriage (10), the drive unit (30) comprising one or more drive wheels (32, 33) and a motor drive (31), the motor drive (31) being configured to drive the one or more drive wheels (32, 33), wherein the first guide wheels (12, 13) are adjustably mounted on the carriage (10) and configured to be moved between at least two different positions relative to the carriage (10) such that in a first position the first guide wheels (12, 13) rest on the guide rails (20, 21), while the drive wheels (32, 33) of the drive unit (30) are in a lifted position relative to the guide rails (32, 33) in which the drive wheels (32, 33) do not engage with the guide rails (20, 21), whereby the carriage (10) is moveably mounted on the guide rails (20, 21) via the first and second guide wheels (12-15), and in a second position the first guide wheels (12, 13) disengage from the guide rails (20, 21), while the drive wheels (32, 33) of the drive unit (30) engage with the guide rails (20, 21) to form a frictional connection with the guide rails (20. 21), whereby the carriage (10) is moveably mounted on the guide rails (20, 21) via the second guide wheels (14, 15) and the drive wheels (32, 33) which are driven by the motor drive (31).


Patent
Agfa HealthCare NV | Date: 2015-06-29

A method of automatically configuring an X-ray imaging system for taking an X-ray image of an object includes, first, obtaining one or more depth images from one or more depth cameras covering at least an area covered by an X-ray bundle of an X-ray source. Then, a thickness of the object is determined from the depth image(s). Then, this thickness value is converted to a dose configuration of the X-ray imaging system by taking into account a transmission length of the X-ray bundle through the object and knowledge about tissue types being imaged.


Patent
Agfa Healthcare NV | Date: 2015-06-29

A method of monitoring a radiation amount received from an X-ray source in an X-ray imaging system for taking an X-ray image of an object includes the steps of obtaining one or more depth images from one or more depth cameras; the one or more depth cameras covering at least an area covered by an X-ray bundle of an X-ray source of the X-ray imaging system; positioning the object against or on a surface including radiation measurement chambers and identifying select radiation measurement chambers underneath the object from the one or more depth images and/or from a single depth image derived from the one or more depth images; and activating the select radiation measurement chambers.


A method for triggering image capture by a group of simultaneously X-ray exposed multiple wirelessly interlinked self-triggering direct radiography (DR) detector assemblies, includes the steps of performing an initiation step to identify the group of participating DR detector assemblies prior to X-ray exposure, detecting the X-ray exposure by a first participating DR detector assembly, the first participating DR detector assembly performing a trigger step to signal all participating DR detector assemblies to start image capture.


A scintillator includes CsBr_(x)I_((1-x) )doped with Europium (CsBr_(x)I_((1-x)):Eu) wherein x<0.5, and is obtained by annealing CsBr_(x)I_((1-x)):Eu material at a temperature from 50 C. to 280 C. The EPR spectrum of the obtained scintillator measured at room temperature at a frequency of 34 GHz shows a maximum signal height at a magnetic field of 1200 mT, and the signal height at 1090 mT and 1140 mT does not exceed 40%, wherein the normalized signal height percentage at 1200 mT is calculated to be 100%. The scintillator is useful in a high energy radiation detection and radiography imaging apparatus.


Patent
Agfa HealthCare N.V. | Date: 2016-10-05

The invention relates to an X-ray system and an according method for operating an X-ray system comprising: a first structure (11, 17), on which an X-ray source and/or an X-ray detector is provided; a second structure (14); at least one stepper motor (40), which is configured to move the first structure (11, 17) relative to the second structure (14, 15), the stepper motor (40) comprising a rotor shaft (41) which is coupled with the first structure (11, 17) such that when a user exerts an external force (F) on the first structure (11, 17) an angular position of the rotor shaft (41) is changed in accordance with the exerted external force (F); at least one incremental rotary encoder (50), which is coupled with the rotor shaft (41) of the stepper motor (40) and configured to generate an encoder signal in accordance with the change of the angular position of the rotor shaft (41); and a control unit (60), which is configured to determine, based on the encoder signal, a position deviation signal characterizing a deviation of the angular position of the rotor shaft (41) from a reference angular position of the rotor shaft (41) and to control the stepper motor (40) to rotate the rotor shaft (41) dependent on the position deviation signal such that the stepper motor (40) supports a movement of the first structure (11, 17) relative to the second structure (14) in accordance with the exerted external force (F).


A process for purifying a compound of formula 1, includes the following steps: a) adding an acid to an aqueous solution of the compound of formula 1, including salts and hydrates thereof so as to obtain a slurry having a pH3; and b) filtering the slurry and at least one time washing the obtained precipitate with a liquid comprising water; and c) dissolving the precipitate obtained in step b) in water to obtain an aqueous solution; and d) filtering of the solution obtained in step c) over a nanofiltration membrane having a Molecular Weight Cut Off in the range from 150 to 500 and wherein optionally, between step c) and step d) the pH of the aqueous solution is adjusted to a pH value in the pH range as specified by the manufacturer of the nanofiltration membrane. A process for preparing a gadolinium complex of the purified compound of formula 1 is also disclosed. This gadolinium complex can be used for making a pharmaceutical composition as a contrast agent for magnetic resonance imaging.


The invention relates to a carrier (10) for receiving an X-ray cassette (15) having an X-ray detector, in particular an X-ray film, an X-ray storage phosphor plate or a solid-state X-ray detector, said carrier (10) comprising a support plate (11) for supporting the cassette (15); a first alignment device (20) for aligning and/or positioning the cassette (15) on the support plate (11) along an X axis of the support plate (11); and a first, in particular optical, sensor device (30) for sensing an X position of the cassette (15) with regard to the X axis. Moreover, the invention relates to an according X-ray system and a method for determining a size and/or orientation of an X-ray cassette (15) inserted into the carrier (10) according to the invention.


Patent
Agfa HealthCare N.V. | Date: 2015-06-03

The invention relates to an apparatus for reading out x-ray information stored in a storage phosphor plate (1) comprising an input device (20) having a slot (26) through which a cassette (40) can be inserted into the input device (20), the cassette (40) being designed for accommodating a storage phosphor plate (1), and a read-out device for irradiating the storage phosphor plate (1) with stimulation light and detecting emission light stimulated in the phosphor plate (1). According to a preferred aspect of the invention, the input device (20) is designed for receiving cassettes (40) having different cassette widths (d1), wherein the input device (20) comprises one or more first elements (30, 36 - 39) designed for aligning and/or fixing cassettes (40) having different cassette widths (d1) in the input device (20) and/or one or more second elements (31 - 35) designed for shutting the slot (26) of the input device (20) in order to prevent ambient light from passing through the slot (26) when cassettes (40) having different cassette widths (d1) are inserted into the input device (20).


The invention relates to a storage phosphor plate assembly (1, 20) comprising at least one storage phosphor plate (1) having a storage phosphor layer for storing X-ray information and a substrate layer on which the storage phosphor layer is provided, the substrate layer containing a permanent magnetic material, and a support plate (20, 22) containing a magnetic material, the at least one storage phosphor plate (1) being held on the support plate (20, 22) due to magnetic forces. The invention further relates to an according X-ray cassette and system for reading out storage phosphor plates (1). By means of the invention, an easy and safe handling of storage phosphor plates of various sizes and/or forms, in particular during the read-out process in the read-out system, is achieved.

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