Abstract: The invention concerns a method for obtaining operating parameters for x-ray imaging a patients maxillofacial region, the method comprising: —identifying a patients maxillofacial first region of interest ROI1, —determining a height of a horizontal plane of said patients maxillofacial first region of interest ROI1 when the patient is in an occlusion position or bites a patient positioning accessory, said horizontal plane passing through the teeth and the bones of the jaw, —acquiring through a slit-shaped collimator window a first set of data relative to said patients maxillofacial first region of interest ROI1 including the horizontal plane using x-ray CBCT imaging and a first x-ray dose, said first set of data being suitable for generating a CBCT slice, —reconstructing the CBCT slice comprising the horizontal plane based on the first set of data relative to the patients maxillofacial first region of interest ROI1, —obtaining operating parameters for an x-ray imaging apparatus based on the reconstructed CBCT s

Abstract: The invention concerns a method for obtaining operating parameters for an x-ray CBCT imaging apparatus in view of acquiring a set of data of a patient's maxillofacial region.

Abstract: A method for the reconstruction of a test part in an X-ray CT method in an X-ray CT system, which has an X-ray with a focus, an X-ray detector, and a manipulator which moves the test part within the X-ray CT system. To generate recordings of the test part in various positions, the manipulator travels a predefinable parameterizable path-curve and makes recordings at triggered positions. For each recording, the position of the manipulator is determined and the respective associated projective geometry is calculated. Thereafter, a further path curve is followed having different parameters from the preceding path curve. The path curve is determined iteratively by means of an optimization algorithm, at the value of which the quality function is minimal. For each test part, a CT reconstruction is carried out by means of a suitable algorithm with reference to the allocation of the individual recordings to the respective projective geometry.

Abstract: An X-ray dental imaging system for medical imaging includes a column, a housing coupled to the column, and a lower shelf movably coupled to at least one of the column or the housing.

Abstract: An X-ray imaging apparatus receives mode selection using a mode selection receiving unit including a mode setting unit and an operation display. When a CT mode is selected by the mode selection receiving unit, an X-ray beam shape adjuster shapes an X-ray beam into an X-ray cone beam in which a center beam that is a center of the X-ray beam is orthogonally incident on a body axis of a head. When a panoramic mode is selected, the X-ray beam shape adjuster shapes the X-ray beam into an X-ray narrow beam in which the center beam is incident on the body axis from obliquely below to obliquely above, the X-ray narrow beam having a length in a direction of the body axis.

Abstract: Method and apparatus for acquiring volumetric CBCT radiographies in an apparatus having a rotary supporting arm, at the ends of which at least an X-ray source and at least an X-ray sensor are positioned, the supporting arm rotating the at least one source and the at least one sensor around a patient. The method includes the steps of positioning a patient on the positioning device, and acquiring a CBCT image through a trajectory having an angular extension lower than 360°, wherein the rotation center of the trajectory of the X-ray sensor is never on the median sagittal plane defined by the patient positioned inside the apparatus and the trajectory is not symmetric to any of the possible sagittal planes of the patient.

Abstract: Provided is an X-ray imaging device for radiographing an object. The X-ray imaging device includes a generator configured to emit X-rays, a sensor unit configured to detect the X-rays using at least one sensor, a gantry having the generator and the sensor unit facing with the object therebetween, and a sensor moving part provided in the sensor unit and configured to move the sensor while the gantry rotates about a rotating axis.

Abstract: The present invention relates to a diagnostic device (400) for measuring component performance on an automated radiopharmaceutical synthesis device (50).

Abstract: An X-ray imaging apparatus of the present invention includes: a rotation unit disposed on a lower end of a rotation shaft through a sliding part so as to enable a sliding movement along an irradiation direction of X-ray; an X-ray source unit disposed on a lower end of one side of the rotation unit; a sensor unit installed by disposing a shaft rotation part on a lower end of the other side of the rotation unit; a driving unit including: a driving part which provides drive power to the shaft rotation part; and an interlocking part configured to allow the rotation unit to slidably move to one side or the other side according to the rotation state of the shaft rotation part.

Abstract: A cross section obtained by cutting an X-ray beam at a time of taking projection data from the X-ray beam detected by an X-ray sensor, with a plane, which is perpendicular to the central axis of the X-ray beam and runs through the central axis of a photographic region, is defined as a photography specification surface. The number of the photography specification surface per unit area in a plane, as the photographic region is viewed from a point in the direction along the central axis of the photographic region, is defined as overlap density of the projection data. A controller of an X-ray photography device executes a leveling control which levels the overlap density of the projection data between at an outer portion and inner portion of the photographic region. Thus, an X-ray photographic device is provided that is capable of improving the image quality in the entire photographic region.

Abstract: Radiographic X-ray equipment includes a revolution driving device that causes an X-ray irradiating member and an X-ray imaging member to perform a revolving movement around a subject with a revolution center line as the center, and a main body control unit that controls the revolution driving device, a secondary driving device controlled by the main body control unit to cause the X-ray imaging member to perform a local movement different from the revolving movement, with a movement width in a predetermined direction, a storing means that stores electric power for the X-ray imaging member, and a supplying means that supplies electric power to the storing means. The X-ray imaging member and the storing means are connected to each other, and the secondary driving device causes the storing means and the X-ray imaging member to perform the local movement as a unit without moving relative to each other.

Abstract: An apparatus for obtaining an intraoral x-ray image from a patient has an x-ray source and an intraoral image detector comprising one or more detectable elements. One or more sensors are positionally coupled near the x-ray source and are energizable to sense the location of the one or more detectable elements when the intraoral image detector is within the patient's mouth. A control logic processor is in signal communication with the one or more sensors and is responsive to stored instructions for calculating a detector position of the intraoral image detector. A projector is positionally coupled to the x-ray source and is in signal communication with the control logic processor and is energizable to project an image toward the calculated intraoral image detector position in response to signals from the control logic processor.

Abstract: A motion-based interlock apparatus, system, and method prevent an x-ray source in an x-ray machine from activating if the current relative motion between the x-ray source and an image receptor would compromise the quality of the resulting plain radiograph. The system activates the interlock based on either or both of the velocity and acceleration of the tubehead, as measured by instrumentation corresponding to any of the tubehead, the extension arm, or off board the x-ray machine. The system may preferably compare the measured motion against one or more acceptable motion thresholds. If the measured motion exceeds one or more of the acceptable motion thresholds, exposure may preferably be delayed until the motion of the tubehead subsides. By ensuring that the image is not exposed while the tubehead is moving substantially, the quality of the resultant radiograph is improved.

Abstract: A panoramic tomography X-ray apparatus including an image information processing part, a display part, and a position setting part. The image information processing part retrieves a frame image information from a storage part and superimposes overlapped portions of images along a tomographic plane corresponding to a dental arch to generate a panoramic tomographic image. The display part displays the panoramic tomographic image generated by the image information processing part. The position setting part sets, in a median portion including a median line of an object, the position of the tomographic plane regarding depth direction of the object.

Abstract: Apparatus and method for acquiring panoramic, teleradiographic and optionally CBCT volumetric dental radiographies, comprising a support holding a rotary arm which in its turn supports at one end a first X-ray source and at the other end an X-ray detector at a suitable distance for acquiring panoramic and optionally CBCT volumetric images. Apparatus comprises only one patient positioning system and a second X-ray source at a distance from detector suitable for acquiring cranial teleradiographies.

Abstract: An X-ray photography apparatus including: a turning arm that supports an X-ray generator and an X-ray detector while the X-ray generator and the X-ray detector are opposed to each other so that a head of a patient can be interposed therebetween; and a moving mechanism that turns the turning arm about a turning axis with respect to the head and moves the turning arm in a direction perpendicular to the turning axis with respect to the head. The X-ray photography apparatus further includes: an image processor that generates an X-ray image based on an electric signal output from the X-ray detector; and a photographic region designation receiving part that designates part of a row of teeth along a dental arch as a pseudo intraoral radiography region. The image processor generates plural tomographic images by applying convolution and filtered back projection to X-ray image data obtained by pseudo intraoral radiography.

Abstract: An X-ray photography apparatus including: a turning arm that supports an X-ray generator and an X-ray detector which are opposed to each other so that the head of a patient can be interposed therebetween, and a moving mechanism that includes a turning part and a moving part. The turning part turns the turning arm about a turning axis with respect to the head. The moving part moves the turning arm relative to the head in a direction perpendicular to the turning axis. The X-ray photography apparatus also includes: an image processor that generates an X-ray image, a photographic region designation part that designates part of a row of teeth along a dental arch as a pseudo intraoral radiography region, and an X-ray forming mechanism that changes the irradiation direction in which the head is irradiated with an X-ray relative to the axial direction of the body axis of the patient.

Abstract: Disclosed is an X-ray photographing apparatus comprising: an X-ray generator for generating X-rays; an X-ray detector for detecting the X-rays discharged from the X-ray generator; and a collimator for permitting only a portion of the X-rays to pass through and blocking the rest X-rays, wherein the apparatus further comprising a support means for supporting the X-rays generator and the X-ray detector and varying heights of the X-ray generator and the X-ray detector, wherein the X-ray generator and the X-ray detector are arranged facing each other at respective left and right sides with respect to the support means for supporting the X-ray generator and the X-ray detector so as to achieve a weight balance, and the support means has an X-ray path through which the X-rays generated by the X-ray generator pass without interference.

Abstract: A method for assisted positioning of an organ is provided. An acquisition system comprises a platform underneath which a detector is placed for the acquisition of radiographic medical images, during which a radiation source is moved over different successive positions with respect to the detector, wherein at least one medical image is acquired at each position of the radiation source. The method comprises illuminating the platform with a light source of the acquisition system to assist the positioning of the organ on the platform; and determining, with a drive unit of the acquisition system, a positioning limit on the platform based on the distance separating the platform and a compression paddle used to compress the organ and based on the position of the light source relative to the detector, wherein the positioning limit on the platform is a limit beyond which the organ must not lie.

Abstract: The invention relates to an X-ray device comprising an x-ray sensitive camera for creating tomograms, especially panoramic tomograms. Means for creating 3D shots of a partial volume of the mandibular arch are also provided, said 3D shots being created especially by a second image receiver for creating a 2D shot and means for taking a plurality of 2D shots from different directions and creating a 3D shot therefrom, preferably according to conebeam technology with the associated reconstruction algorithms. The x-ray sensitive camera comprises a first x-ray sensitive image receiver for creating a tomogram, and a second x-ray sensitive image receiver for creating plane shots.

Abstract: A medical imaging device mountable on a support structure having a horizontal surface and at least one substantially vertical surface. The imaging device includes a frame and a gantry having a radiation source and a radiation detector. The gantry is rotatable with respect to the frame. The imaging device includes a first vertical adjustment element and a second vertical adjustment element. The first vertical adjustment element has a first end couplable to the horizontal surface and a second end coupled to the frame, the first end is located a first distance from the second end, and adjustable over a first range. The second vertical adjustment element has a third end coupled to the frame and a fourth end coupled to the gantry. The third end is located a second distance from the fourth end, and is adjustable over a second range, and the fourth end is rotatable with respect to the third end.

Abstract: A movement mechanism joins an X-ray source and X-ray detector unit, adapted to rotate about the subject of the imaging. The movement mechanism comprises at least two parts adapted to be mutually turnable. In addition, the X-ray source and X-ray detector unit are located in different parts in the movement mechanism.

Abstract: A medical X-ray photography apparatus includes the turning arm and a moving mechanism. The turning arm supports an X-ray generator and an X-ray detector. The moving mechanism includes a turning part that turns the turning arm and a moving part that moves the turning arm along a two-dimensional plane orthogonal to an axial direction of a turning shaft. The medical X-ray photography apparatus also includes a photographic region assignment receiving part that receives an operation to assign a part of a dental arch as a pseudo intraoral radiography region, a main-body control part that controls the moving mechanism based on a movement starting signal to move the turning arm to a predetermined photography starting position corresponding to the pseudo intraoral radiography region, and a signal output switch that includes a movement starting signal output part outputting the movement starting signal to the main body control part.

Abstract: A sensor positioning and stabilizing device is provided. The sensor positioning and stabilizing device holds and stabilizes dental x-ray film or digital sensors during implant surgery with requiring a patient to bite down or manually hold it in position in order to take an x-ray.

Abstract: An X-ray photography apparatus including: a turning arm that supports an X-ray generator and an X-ray detector which are opposed to each other so that the head of a patient can be interposed therebetween, and a moving mechanism that includes a turning part and a moving part. The turning part turns the turning arm about a turning axis with respect to the head. The moving part moves the turning arm relative to the head in a direction perpendicular to the turning axis. The X-ray photography apparatus also includes: an image processor that generates an X-ray image, a photographic region designation part that designates part of a row of teeth along a dental arch as a pseudo intraoral radiography region, and an X-ray forming mechanism that changes the irradiation direction in which the head is irradiated with an X-ray relative to the axial direction of the body axis of the patient.

Abstract: An extra-oral digital panoramic dental x-ray imaging system for multi-layer panoramic and transverse X-ray imaging providing with an X-ray source and a digital imaging device providing real time frame mode output and autofocusing. The X-ray source and imaging device are mounted in a mechanical manipulator defining the trajectory of a predetermined image layer. The imaging device communicates with a processor that generates a frames memory from which an image reconstruction mechanism composes the final images.

Abstract: A method for obtaining an intraoral x-ray image determines an initial spatial position and angular orientation of an x-ray source relative to a detector. A first x-ray image is obtained with the x-ray source at the initial spatial position and angular orientation and stored, associating the initial spatial position and angular orientation to the first x-ray image. A sequence repeats that calculates a next spatial position and angular orientation for the x-ray source, provides positional adjustment information between the x-ray source and detector for obtaining a next x-ray image, measures and records the actual spatial position and angular orientation of the x-ray source relative to the detector and obtains and stores the next x-ray image at the measured spatial position and angular orientation, and forms a composite image using image data from the first and from the one or more next x-ray images.

Abstract: Provided is an intraoral X-ray imaging apparatus having a camera, including: a frame; an X-ray irradiator which is installed to be supported by the frame and of which the one end portion is inserted into the oral cavity and which irradiates X-ray through an X-ray irradiation hole formed on the one end portion inserted into the oral cavity; a camera unit which is installed at the one end portion of the X-ray irradiator to image an interior of the oral cavity; a monitor unit which is connected to a camera unit to output the image captured by the camera unit; and an X-ray detector which is arranged to be separated from the X-ray irradiator in the frame so as to detect the X-ray irradiated from the X-ray irradiator outside the oral cavity. In the intraoral X-ray imaging apparatus having a camera, since the X-ray irradiator is located inside the oral cavity, it is possible to obtain an image having a high quality with a low X-ray dose and to avoid confusion in image diagnosis by removing a ghost image.

Abstract: An extra-oral digital panoramic dental x-ray imaging system for multi-layer panoramic and transverse X-ray imaging providing with an X-ray source and a digital imaging device providing real time frame mode output and autofocusing. The X-ray source and imaging device are mounted in a mechanical manipulator defining the trajectory of a predetermined image layer. The imaging device communicates with a processor that generates a frames memory from which an image reconstruction mechanism composes the final images.

Abstract: An extra-oral digital panoramic dental x-ray imaging system for multi-layer panoramic and transverse X-ray imaging providing with an X-ray source and a digital imaging device providing real time frame mode output and autofocusing. The X-ray source and imaging device are mounted in a mechanical manipulator defining the trajectory of a predetermined image layer. The imaging device communicates with a processor that generates a frames memory from which an image reconstruction mechanism composes the final images.

Abstract: A motion system for use in a panoramic dental radiation imaging system, including apparatus for rotating an overhead arm with respect to a support column, apparatus for rotating a C-arm with respect to the overhead arm, and apparatus for moving the C-arm axially with respect to the overhead arm. The overhead arm is rotatably mounted to the support column at a rotation point. The apparatus for rotating the overhead arm is a linear actuator, one end of which is connected to the support column at a first point spaced apart from the rotation point, while the other end is connected to the overhead arm at a second point spaced apart from the rotation point and from the first point. The C-arm rotating apparatus includes a C-arm rotation motor driving a wheel, which is engaged with the C-arm in such a way that the rotation of the wheel causes rotation of the C-arm.

Abstract: A patient positioning system for a panoramic dental radiation imaging system, including an upright support, and a patient positioning arm with chin rest mounted thereto. Wands are each rotatably connected to the patient positioning arm and connected together so as to move at identical angles of rotation, but in the opposite direction. Lasers, including a mid-sagittal, a Frankfort Plane, two cuspid, and one toe laser, each providing a line of visible laser light directed at a respective area of a patient's face, or at the floor, assist a technician in properly positioning the patient. A mirror is mounted to the upright support by a mechanism that permits the mirror to be pivoted outward from the support, in either of two directions, so as to enable the technician to see the lasers on the patient's face from the technician's position on either side of the positioning arm.

Abstract: For dental and facial imaging, a source of x-rays (14) or other penetrating radiation and a detector (20) are mounted opposite one another on a rotatable gantry (28), so that the head of the patient can be positioned between the source (14) and the detector (20), with the axis of rotation (36) of the gantry passing through the patient's head. The detector or the source are mounted so they can translate and/or pivot horizontally or vertically. The gantry is angulated so that the source or the detector may not be at the same height relative to the patient's head. The gantry can telescope, moving the source and the detector closer together or further apart. The collimator changes dynamically with the motion of the gantry and/or the source and detector to scan a smaller portion of the scan field.

Abstract: A dental radiology apparatus includes an X-radiation generator and a sensor opposite it receiving radiation from the generator. The apparatus produces a panoramic image of an object by displacement of the assembly formed of the generator and the sensor along a given trajectory in a plane, the generator having at least one collimation slit elongated along a z-axis perpendicular to the plane to produce an X-ray beam elongated along this axis in a first mode of operation, the sensor with an array of pixels extending along the Z-axis in correspondence with the beam. The apparatus includes elements for pivoting the sensor by 90° to extend it in a direction parallel to the plane P, switching the generator provided with the collimation slit from the first mode to a second mode of operation to produce an X-ray beam elongated parallel to the direction of the sensor, so that the these positioned sensor is always in correspondence with the beam.

Abstract: An X-ray imaging apparatus includes an X-ray generation part, an X-ray detection part, and a revolution drive mechanism. The X-ray generation part has an X-ray generator including a cathode and an anode, and emits an X-ray beam from the X-ray generator. The X-ray detection part detects the X-ray beam. The revolution drive mechanism performs X-ray imaging by revolving the X-ray generation part and the X-ray detection part around the object while the X-ray generation part and the X-ray detection part are opposed to each other with said object interposed therebetween. The X-ray imaging apparatus controls a restriction part to thereby restrict an X-ray transmission in such a manner that the focal spot size of an X-ray beam used in X-ray CT imaging of a relatively narrow imaging region is smaller than the focal spot size of an X-ray beam used in X-ray CT imaging of a relatively large imaging region.

Abstract: Apparatus and method for acquiring panoramic, teleradiographic and optionally CBCT volumetric dental radiographies, comprising a support holding a rotary arm which in its turn supports at one end a first X-ray source and at the other end an X-ray detector at a suitable distance for acquiring panoramic and optionally CBCT volumetric images. Apparatus comprises only one patient positioning system and a second X-ray source at a distance from detector suitable for acquiring cranial teleradiographies.

Abstract: The invention relates to a dental X-ray system for the creation of a radiograph (13), comprising an imaging unit (5) for surface detection. The imaging unit (5) has a light source (6), which produces a polychromatic beam of visible light (6?), a masking edge (7), which extends at least partially into the polychromatic beam of light (6?) between the light source (6) and the recording area (19) for the purpose of creating a shadow demarcation line (17) in said recording area (19), and an optical detector (8), wherein the light source (6), the masking edge (7) and the optical detector (8) are mounted directly on the supporting device (2) and/or on the X-ray source (3) and/or on the X-ray detector (4) and can be moved together therewith past the recording area (19) in circular motion.

Abstract: A panoramic dental x-ray unit. The unit includes a support rotating about an axis and carrying, in the opposite position, an x-ray source and detector which move following a predetermined trajectory. The unit further includes means for acquiring images of the dental arch of a patient corresponding to the positions of the detector and of the source with respect to the dental arch. There is also provided means for reconstruction of a two portions of a panoramic image corresponding respectively to two disconnected portions of the dental arch, the reconstruction being performed from certain acquired images which each contain at least one piece of information concerning the two disconnected portions of the dental arch.

Abstract: There is described an X-ray diagnostic device for performing cephalometric, dental or orthopedic examinations on a patient who is seated or standing. The X-ray diagnostic device comprises an X-ray emitter and an image detector embodied as a flat-panel detector that are arranged situated opposite each other on an orbitally moveable mount. The X-ray diagnostic device further comprises means for adjusting the height of the X-ray emitter and the image detector, a digital image system for recording a projection image using rotation angiography, a device for image processing for reconstructing the projection image into a 3D volume image; and a device for correcting physical effects or artifacts for representing soft tissue in the projection image and in the 3D volume image reconstructed therefrom.

Abstract: An extraoral dental radiographic apparatus which performs panoramic radiographies, cone beam volumetric radiographies of the facial skeleton and cranial teleradiographies. An alternating mechanism brings x-ray sensors toward the x-ray radiation source, such that the sensor axes intersect at an angle.

Abstract: A dental x-ray photographing device includes a rotating means (3) for rotating an arm (2) which supports an x-ray source (11) and an x-ray imaging means (12), a sliding means (4) for linearly moving the x-ray imaging means (12). The dental x-ray photographing device obtains a first set of projection images which goes through a first region by moving the x-ray imaging means (12) to a first detection position, obtains a second set of projection images which goes through a second region by moving the x-ray imaging means (12) to a second detection position, and paste the first set of projection images and the second set of projection images together.

Abstract: An apparatus for dental and facial imaging including a rotatable gantry having an axis of rotation generally in the direction of local gravitational vertical; a source of penetrating radiation mounted on the gantry; an elongated detector for detecting radiation and producing image data, the detector mounted opposite the source on the gantry, and having a length, a long axis, and a short axis The gantry, source, and detector configured to receive the head of a patient between the source and the detector, with the axis of rotation of the gantry passing through the patient's head. The detector is mounted rotatably to the gantry and movable between a first position where the long axis of the detector is generally perpendicular to the axis of rotation of the gantry and a second position where the long axis of the detector is generally parallel to the axis of rotation of the gantry.

Abstract: In an X-ray CT imaging, an X-ray generator (11) and a two-dimensional X-ray detector (21) are opposed to each other between an object and are rotated by a rotary shaft (32) around the object. At least one of the rotary shaft supporter (61) and an object holder (40) includes a movement mechanism (42, 65) for moving a supporter (30) for the X-ray generator and the X-ray detector relative to the object. In offset scan CT imaging, the rotation of the supporter by the rotary shaft is performed simultaneously with the relative two-dimensional movement of the rotary shaft by the movement mechanism. In the relative two-dimensional movement, the position of the rotary shaft is moved according to the rotary angle of the supporter along a circular orbit around the center of a CT imaging region in a plane crossing the rotary shaft. Thus, it becomes possible to image a larger region of interest of the object.

Abstract: A radiation imaging device includes plural individual detectors defining an irregular rectangular active area responsive to x-rays and with different widths along a length of the active area. The individual detectors may be of different rectangular shapes and mounted on a motherboard. The motherboard may be formed of a first module mounting a first of two individual detectors and a second module detachable connected to the first module and mounting a second of two individual detectors.

Abstract: An apparatus provides an image on the basis of a plurality of input images. The apparatus includes a first stage having at least a first and a second combiner, each of the combiners including a first storer for storing image data of the input images, a first processor for processing the image data of the input images into an intermediate image, and a second storer for storing image data of the intermediate image. The apparatus further includes a second stage having at least one further combiner, the further combiner including a third storer for storing image data of those intermediate images which are stored in the second storer of the first stage, a second processor for processing the image data from the third storer, so as to combine the image data of the intermediate images into the image, and a fourth storer for storing image data of the image.

Abstract: There is provided a panoramic imaging apparatus which serves as a radiation imaging apparatus. The panoramic imaging apparatus includes an X-ray tube radiating an X-ray as a radiation, a detector outputting digital-quantity frame data corresponding to an incident X-ray, and moving means moving the pair of X-ray tube and the detector relatively to an object. The apparatus further includes means for acquiring the frame data from the detector during movement of the X-ray tube and the detector, and means for optimally focusing a portion being imaged of the object using the acquired data and producing a three-dimensional optimally focused image in which the real size and shape of the portion being imaged are reflected.

Abstract: A dental fluoroscopic imaging system includes a flat panel detector comprising a converter, a plate, a collector, a processing unit, and a transmitter suitable for 2D, intraoral dental fluoroscopy and for 3D extraoral dental fluoroscopy. The converter contains a material capable of transforming low dose radiation received from an emitter after going through the dental examination area into electrical signals. The plate transmits the electric signals to a collector, which amplifies the signals. The processing unit processes the signals into digital images, and the transmitter transfers digital images sequentially to a host computer having software that acquires, processes, transforms, records, freezes, and enhances 2D and 3D images, and compiles videos having video frame rates of between 3 and 100 frames per second. Two dimensional images and video are obtained using a single flat panel detector, while three dimensional images and video are obtained using two flat panel detectors.

Abstract: A dental x-ray photographing device includes a rotating means (3) for rotating an arm (2) which supports an x-ray source (11) and an x-ray imaging means (12), a sliding means (4) for linearly moving the x-ray imaging means (12). The dental x-ray photographing device obtains a first set of projection images which goes through a first region by moving the x-ray imaging means (12) to a first detection position, obtains a second set of projection images which goes through a second region by moving the x-ray imaging means (12) to a second detection position, and paste the first set of projection images and the second set of projection images together.

Abstract: Tomographic images in a plurality of radius places are obtained in one-time X-ray photographing, and a lot of information on the diagnose can be provided by forming a stereoscopic image with these obtained tomographic images, and thickness of radial and fineness of angular direction of tomographic image that can be obtained herein compared with prior art can be set arbitrary and can be adjusted thereby obtaining further imperceptible stereoscopic image. To this end, whole photographed images at respective divided unit angles that can be obtained in the digital dental panoramic radiography apparatus at the tomography in the circular orbit, are stored, after X-ray photographed, these photographed images are arranged substantially on the circular arc at the radius place of the tomographic image of the desired extracting part, tomographic images in radius location can be constructed by adding while shifting every photograph unit angle.

Abstract: In order to set up digital image acquisition in classic panoramic X-ray machines, the invention proposes providing a row of detectors in the cartridge unit of the machines, said row of detectors being arranged or being able to be arranged behind the recording slit. The output signals from the row of detectors and the output signals from a rotary encoder are wirelessly transferred to an evaluation unit. Retrofitting the digital image acquisition thus does not require any intervention in safety-related parts of the panoramic X-ray machine.