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7224768 X-ray apparatus with anode rotation number detecting means  
An X-ray tube apparatus ( 2 ) having an anode rotating mechanism for preventing damage of the anode ( 23 ) of the X-ray tube apparatus thereby to shorten the X-ray exposure waiting time. When the...
6891924 Control apparatus for controlling radiotherapy irradiation system  
A control apparatus for a radiotherapy irradiation system in which a calculation time required for calculation to be performed after restrictions are modified is shortened. The control apparatus...
6785578 User input device for controlling medical imaging equipment motion  
A system including a user input device for controlling a position of medical equipment is described. In an example embodiment, the user input device is configured to be coupled to the medical...
6754298 Method for statistically reconstructing images from a plurality of transmission measurements having energy diversity and image reconstructor apparatus utilizing the method  
A method for statistically reconstructing images from a plurality of transmission measurements having energy diversity and image reconstructor apparatus utilizing the method are provided. A...
6714629 Method for registering a patient data set obtained by an imaging process in navigation-supported surgical operations by means of an x-ray image assignment  
The invention relates to a method for registering a patient data set obtained by an imaging process in camera navigation-supported surgical operations, comprising the following steps: producing a...
6687329 Computer aided acquisition of medical images  
The invention provides a technique for acquiring subsequent image data in a medical diagnostic context based upon analysis of initial image data. The initial image data is processed via a computer...
6683933 Three-dimensional image display device in network  
A three-dimensional image processing system enables multiple users at distant locations employing ordinary personal computers to construct and observe three-dimensional images simultaneously. In a...
6678346 Cone-beam CT scanner with image reconstruction using multiple sub-images  
A computed tomography imaging system includes a source of a conical beam of radiation and a two-dimensional detector array arranged on opposite sides of an axis of rotation. Projection data is...
6674879 Echocardiography workstation  
A digital image processing system for enhancing the image quality and diagnostic capabilities of conventional medical diagnostic ultrasound imaging systems and, more particularly, to an...
6674833 Virtual fluoroscopic system and method  
A method and system for obtaining desired subsurface views of a patient target site are disclosed. The system includes a scan-data file for storing, in digital form, volumetric scan data of a...
6665370 Computed tomography method and apparatus for acquiring images dependent on a time curve of a periodic motion of the subject  
In a spiral scan cone beam computed tomography method and apparatus, the output data are divided into sub-segments being shorter than the length required for the reconstruction of a CT image....
6658080 Displaying image data using automatic presets  
A computer automated method for setting visualization parameter boundaries in a preset for displaying an image from a 3D data set applicable to magnetic resonance (MR) data, computer tomography...
6654442 Methods and apparatus for weighting projection data  
A method for weighting projection data includes selecting a region that includes a plurality of projection data samples, dividing the region into a plurality of equally sized sub-regions, and...
6647084 Method and apparatus for filtering projection data of a helical scan  
A method for filtering projection data of a helical scan of an object includes acquiring projection data representing a helical scan of an object, generating a weighting function based on the...
6639966 Method for checking the presentation quality of imaging systems for medical diagnostics with respect to ring artifacts  
A method is used for checking the presentation quality of imaging systems for medical diagnostics with regard to ring artifacts. The method includes creating at least one test image and defining...
6614874 Robust and efficient decomposition algorithm for digital x-ray de imaging  
The present technique provides a variety of processing schemes for decomposing soft tissue and bone images more accurately from low and high-energy images acquired from an imaging system, such as a...
6553091 X-ray CT apparatus  
An X-ray CT apparatus includes a pair of an involute gear and a magnetic sensor as a structure for detecting the rotation of the gantry rotary section in a non-contact fashion. The involute gear...
6549607 Method and system for creating task-dependent three-dimensional images  
A system and method for producing three-dimensional representations of an object. A first series of projected images of the selected object is recorded in a first projection plane and a second...
6507633 Method for statistically reconstructing a polyenergetic X-ray computed tomography image and image reconstructor apparatus utilizing the method  
A method for statistically reconstructing an X-ray computed tomography image produced by a single X-ray CT scan having a polyenergetic source spectrum and an image reconstructor which utilize a...
6504893 Method for examining a body region executing a periodic motion  
In a method for examining a body region of an examination subject executing a periodic motion with a CT apparatus having a multi-line detector system in spiral mode, the X-ray source is activated...
6430259 Medical apparatus provided with a collision detector  
A medical apparatus for (radiation) diagnosis or therapy can be provided with moving parts 6 . Such an apparatus must be provided with a collision detection device 26, 28, 30 . A known collision...
6341155 Pulse detection system for X-ray tubes  
A rotation monitoring system ( 70 ) detects the rotational speed of an anode ( 10 ) of an x-ray tube during use. The system ( 70 ) includes a detector ( 72 ), which detects a pulse of secondary...
6327326 Method for image reconstruction for a computed tomography apparatus  
In a method for image reconstruction in a computed tomography apparatus, whereby only the minimally possible projection angle range α g (β) for the respective fan angle β is employed for all...
6208132 Non-intrusive speed sensing for induction motors  
A sensing coil affixed to the outside of an induction motor housing uses flux signals from the motor to measure motor speed. In particular, components of the rotor current are measured and compared...
6178220 CT systems with oblique image planes  
A method for reconstructing one or more non-axial image slices in a CT scanner, comprising: acquiring X-ray attenuation data over an axial range; and processing the attenuation data to determine CT...
5883935 Object detector and associated driving device for a medical diagnostic apparatus  
An apparatus for medical diagnosis and/or therapy which includes an electromagnetic proximity sensor (20-1, 20-2, 20-3, 20-4) which detects the presence of an object (for example, 28) directly in...
5828210 X-ray tube anode drive speed monitor including flux pickup coil  
A method for monitoring a rotor speed of an X-ray tube anode drive includes acquiring axial flux pickup data from the rotor, using the axial flux pickup data to provide a flux spectrum, and...
5774625 Arrangement for monitoring the rotational speed of a rotary-anode drive motor of x-ray  
The invention relates to an X-ray apparatus, comprising a rotary-anode X-ray tube, a device for monitoring the rotational speed of a rotary-anode drive motor of the X-ray tube, a sensor circuit for...
5566219 X-ray apparatus comprising of a circuit arrangement for accelerating and decelerating the rotary anobe of a rotary-anode x-ray tube  
The invention relates to an X-ray apparatus, comprising a circuit arrangement for accelerating and decelerating the rotary anode of a rotary-anode X-ray tube in which phase-shifted alternating...
5235627 X-ray diagnostic system  
In order to compensate offsets in an X-ray irradiated field, an X-ray diagnostic system comprises: an X-ray source including a movable X-ray diaphram unit; an X-ray camera unit for radiographing a...
5175754 Gantry position reference for tomographic scanners  
A CT apparatus produces a trigger position signal having a programmable angular spacing, for triggering the acquisition of projections, from an encoder index pulse having a different fixed angular...
5140246 High performance high speed starter for an x-ray tube rotor  
A sationary rotatable anode (42) of an x-ray tube (10) is electrically connected to a high speed starter (24). The starter (24) includes an inductive rotor (44) connected to the anode (42), a main...
5090041 X-ray tube anode speed reducer  
A rotor speed adjustment circuit (60) reduces the rotational speed of an anode (32) of an x-ray tube (14) in a diagnostic apparatus (10). An AC current (64) from an AC current source (54) is...
5060251 X-ray diagnostics generator having a rotating anode x-ray tube  
An x-ray diagnostics generator which includes a rotating anode x-ray tube includes circuitry for setting the speed of rotation of the anode dependent on exposure parameters. At particular...
5048070 X-ray tube support apparatus  
An X-ray tube support apparatus includes: an X-ray tube support mechanism for supporting an X-ray tube to be vertically extendible/movable; a guide unit, having moving paths which allow movement in...
4829551 Biphase quadrature drive for an x-ray tube rotor  
An x-ray tube (10) imaging system, such as a computed tomography scanner, includes a cathode (40) for generating a stream of electrons. A rotating anode (42) is placed in a path of the electron...
4468775 Optical selector device using a Fizeau wedge for reflection  
When a sufficient reflectivity and a low absorption power are given to its dihedron of reflective surfaces, a Fizeau wedge can serve as a directional optical selector which supplies a narrow band...
4316129 X-Ray tube control system  
A control system for rotating anode x-ray tubes comprising an x-ray tube including an anode rotated by a motor having mounted therein photoelectric means for sensing rotational movement of the...
4259580 Control circuit for a rotary-anode X-ray tube  
Known circuit arrangements which measure and indicate the speed of a rotary-anode X-ray tube require that sensors be provided in the tube cover. This invention, however, does not require any...
4065674 Rotary-anode X-ray tube  
The stator of the drive motor of a rotary anode X-ray tube is composed of a plurality of radially displaceable sector elements. As a result, the anode can be accelerated and decelerated while using...
3974384 X-ray diagnostic apparatus for radioscopy and X-ray film exposures including an X-ray tube having a rotating anode  
An X-ray diagnostic apparatus employed in radioscopy and for X-ray film exposures, including an X-ray tube with a rotating anode, in which the transitional time during changes in operational mode...
3963930 System for controlling operation of the rotating anode of an X-ray tube  
A closed loop system is disclosed for monitoring and regulating the power applied to the stator of an induction motor for controlling the operation of the rotating anode of an X-ray tube in order...
3943356 X-ray tube rotating anode sensing detector  
An apparatus for sensing the speed of a rotating anode of an X-ray tube and for providing signals responsive to the detected rotating speed.
3917949 X-ray diagnosis apparatus for feeding an x-ray tube having a rotary anode  
An X-ray diagnosis apparatus for feeding an X-ray tube having a rotary anode for illumination and exposure with means for setting the exposure data and a feeding device for the motor of the rotary...
3564254 SPIN MOTOR CONTROLLER FOR A ROTATING ANODE MOTOR OF AN X-RAY GENERATOR TUBE  
A solid state spin motor controller responsive to monostable multivibrator circuitry for starting the motor, sensing that the motor has come up to speed properly, and preventing the application of...
3518434 X-RAY TUBE ROTATABLE ANODE CONTROL CIRCUIT WITH MEANS TO SENSE AND CONTROL ANODE MOTOR CURRENT  
3244884 Chi-ray tube starter  
3214589 Protection system for rotating anode x-ray tubes including means for measuring the anode rotational speed  
3094618 Chi-ray tube protection mechanism  
3043957 Protection device for rotating anode x-ray tube  
Matches 1 - 50 out of 50