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5005195 |
Digital readout system for radiographic imaging
A readout system is disclosed for use in conjunction with a radiation detector to obtain radiographic images. The readout system includes an event gating mechanism for receiving signals which are...
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4995064 |
Continuously sweeping multiple-pass image acquisition system for peripheral angiography
In an X-ray imaging system, images of a moving bolus of contrast medium are acquired by the emission of X-ray radiation pulses through an object to be imaged while controlling the longitudinal...
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4995068 |
Radiation therapy imaging apparatus
A radiation therapy imager provides images of a patient while being treated while on a radiation therapy machine for purposes of verification and monitoring of position and alignment, and for...
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4982604 |
Method and system for testing the dynamic interaction of coring fluid with earth material
A material sample representative of a subsurface formation is tested for its dynamic interaction with a coring fluid. The material sample is subjected to a pressurized and agitating coring fluid to...
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4984160 |
Method for image reconstruction through selection of object regions for imaging by a comparison of noise statistical measure
The fact that a vascular tree occupies a very small portion of the surrounding space is profitably employed for reducing the number of reconstruction calculations and improving the quality of this...
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4943987 |
Method and system for displaying X-ray images of blood-vessel structure parts of subject
X-ray mask images of a subject are acquired by a TV camera before a contrast media injected by a injector reaches a region of interest of the subject, the acquired X-ray mask images are stored in a...
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4941169 |
X-ray photographic equipment
An X-ray photographic equipment includes an assembly consisting of an X-ray tube and an X-ray image pickup means with the body of a subject disposed therebetween. The assembly is moved relative to...
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4939758 |
Apparatus for the generation of tomographic X-ray images
An apparatus for obtaining tomographic X-ray images having enhances contrast properties comprising an X-ray radiation receiver (3). The radiation is received by a recording circuit (50) having an...
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4939761 |
Light distributor for an x-ray diagnostics installation
A light distributor for directing the light of the output image of an x-ray image intensifier to a number of different types of cameras in an x-ray diagnostics installation has a housing to which...
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4937847 |
Enhancement system and method for X-ray imaging
A method and system are disclosed for producing a photographic image of an X-ray pattern, including the following steps: converting the X-ray pattern to a first pattern of light; exposing a...
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4924487 |
X-ray diagnostic apparatus
An X-ray diagnostic apparatus has two modes, i.e., a fluoroscopy mode for displaying an X-ray fluoroscopic image, and a radiography mode which is selected in response to a radiography instruction...
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4912737 |
X-ray image observing device
The X-ray image microscope according to this invention comprises an X-ray absorption imaging unit having a glazing incidence mirror, and an electron imaging unit having an electron lens connected...
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4894850 |
X-ray apparatus for slit radiography
The invention relates to the elimination of streak-like artefacts in slit radiography which are caused by an axial excursion of the rotary anode X-ray tube used for making the radiographs. These...
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4891844 |
Radiation image detecting system
A radiation image detecting system with the image divided into pixels. In this system the pixel signals are detected with a method of coded aperture. All the pixels are grouped into equal-sized...
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4890310 |
Spectral type radiation imaging system
An x-ray having the energy bandwidth which extends between above and below the absorption edge energy of an element constituting a contrast agent is emitted from an x-ray source as an x-ray to be...
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4888794 |
Method of generating an image of a layer of an object
The invention relates to a method which enables spatial display in cases where X-ray images are formed from different perspectives which are situated far apart. To this end, from the single images...
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4887604 |
Apparatus for performing dual energy medical imaging
An energy substraction medical imaging system which is used for imaging a body part impregnated with a radio-opaque dye such as iodine is provided. The system includes an electron beam target...
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4884289 |
X-ray scanner for detecting plastic articles
An x-ray scanner for detecting plastic articles has an x-ray source which generates a fan-shaped x-ray beam through which an article to be examined is moved. A primary radiation detector array is...
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4872188 |
Registration correction for radiographic scanners with sandwich detectors
A fan beam of radiation (12) is projected on first and second detector arrays (18, 20). The detector arrays and fan beam are swept across a phantom (D). Fine wires (82) in the phantom each cast...
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4870670 |
X-ray scanner with secondary radiation detector
An article inspection system has separate detectors for primary radiation and scattered radiation which are generated by an article upon being irradiated with X-radiation. The scattered radiation...
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4868857 |
Variable compensation method and apparatus for radiological images
Method and apparatus for variably compensating a radiographic image irradiates the patient with an x-ray beam. X-ray attenuation (or transmission) variations within the patient are detected and...
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4857734 |
Read system for a luminescent image storage screen in an x-ray diagnostics installation
A read system for a luminescent image storage screen in an x-ray diagnostics installation, the luminescent screen latently storing an x-radiation image, includes a source of readout radiation which...
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4852137 |
Imaging of light-opaque specimens by transmission of radiation therethrough
A method of and apparatus for imaging light opaque specimens wherein a secondary source (16) is stimulated by radiation (x-rays or high energy electrons or neutrons) transmitted through the...
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4841554 |
X-ray scanner for inspecting articles moving therethrough
An x-ray scanner for inspecting articles moving therethrough, such as on a conveyor, has a frame on which an x-ray source, a collimator for the x-ray beam, and a radiation detector are mounted. The...
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4841555 |
Method and system for removing scatter and veiling glate and other artifacts in digital radiography
A method and system for reconstructing image data obtained from plural sequential exposures of an object by a radiation source through a multiple slit beam scanning assembly, wherein frames of...
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4837796 |
X-ray imaging system
An X-ray imaging system has an X-ray source, an X-ray image detection section, an X-ray mask member, a drive unit, a memory, a calculating section, and an image output unit. An X-ray image is...
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4819257 |
Lithotripsy work station
A lithotripsy work station has a patient support table which is adjustable in three dimensions by a position control unit. The support table has an opening therein through which a shock wave...
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4817123 |
Digital radiography detector resolution improvement
A digital radiographic system and method is disclosed having improved detector resolution. The system includes an X-ray source and a spaced detector assembly having several staggered columns of...
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4813062 |
Radio-opaque marker and method
A crayon-like marker is described which is capable of making marks detectable by X-ray on various substrates, e.g., textile products. The marker is comprised of a waxy medium in which is dispersed...
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4803714 |
Method for forming a radiogram using slit-scanning radiographic techniques
There is disclosed a method for forming a radiogram of an object comprising the steps of energizing an X-ray source at a low level of radiation intensity wherein the X-ray source includes a slit...
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4783794 |
Baggage inspection system
A baggage inspection system has a conveyor path disposed between an X-ray source, which genertes an X-ray beam, and a radiation detector for detecting radiation passing through articles on the...
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4780897 |
Dual energy imaging with kinestatic charge detector
A method and apparatus for providing dual energy radiation images of a patient in a kinestatic charge detection system utilizes first and second kinestatic charge detectors commonly connected to...
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4764946 |
Method and modifying body for influencing the effect of X-ray or gamma radiation on a target sensitive to the radiation
Method and modifying body for influencing the effect of X-ray or gamma radiation on a target (7) sensitive to radiation, in particular for selective modification of a radiograph of an object (10)....
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4710946 |
Method and apparatus for X-ray video fluoroscopic analysis of rock samples
Method and apparatus involving the use of an X-ray video fluoroscope for nondestructive analysis of rock samples, including core obtained during the drilling of wellbores through subterranean...
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4709382 |
Imaging with focused curved radiation detectors
A digital radiography system is disclosed having a multi-element curved detector assembly. The system includes an X-ray tube having a focal spot from which its X-ray energy primarily emanates, and...
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4692938 |
X-ray shadow graph device
An X-ray shadow graph device comprising a light source, an X-ray tube, light connection means, a sample, an image recording device, and sample excitation means, which obtains a transmission image...
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4692937 |
Radiography apparatus and method
Radiography apparatus includes radiation sources for substantially simultaneously generating first and second radiation beams. Collimators are interposed between the radiation source and an object...
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4688238 |
Method for determining lithological characteristics of a porous material
A substantially cylindrical sample of a porous material is surrounded by an elastic jacket and placed in a confining pressure cell. Pressure is supplied to the cell to press the jacket into contact...
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4672651 |
Method of and apparatus for reconstructing shape of interested part of object through irradiation with X-rays
An object is irradiated with respective cone-beam like X-rays from first and second directions. For each of the first and second directions are produced mask and live images as respective...
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4581752 |
X-ray shadow prevention device
An X-Ray Shadow Prevention Device for use in the taking of chest exposures for the prevention of the formation of shadows on the exposed film caused by contact of the nipples of the patient with...
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4578803 |
Energy-selective x-ray recording and readout system
Energy-selective x-ray images are produced using two scintillating screens separated by an x-ray hardening filter. Photosensitive surfaces individually receive the light images from each screen....
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4551800 |
Integrated hybrid image remasking in a subtraction angiography method
In a subtraction angiography hybrid difference images are generated and reviewed visually. Hybrid images that exhibit no x-ray contrast medium and are free of artifacts are identified and selected...
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4538227 |
Medical image processor
An image processor which can accurately and promptly obtain information about a ventricle of a living body, such as the boundary diagram, the volume, the centroid movement view and a...
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4510392 |
Autoradiogram marking process
A process of forming indicia on autoradiograms is disclosed wherein a substrate containing a distribution of radioactive material, such as radioactively tagged proteins, is marked with a hexagonal...
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4499591 |
Fluoroscopic filtering
A radiation source emits a beam of penetrating radiation toward an examination object. A protective filter, fabricated of yttrium foil attached to a bakelite card, is positioned in the path of the...
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4497062 |
Digitally controlled X-ray beam attenuation method and apparatus
X-ray compensation masks (51) are prepared by exposing an X-ray target object (43), such as a patient, to a first beam of X-rays. The X-ray fluence from the patient is received by an electronic...
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4426725 |
Biplanar variable angle X-ray examining apparatus
X-ray apparatus is shown in which there are two radiological sets, each set including an X-ray tube and radiation receptor (e.g., film holder or image intensifier) and means supporting them on a...
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4413353 |
X-Ray encoding system using an optical grating
X-ray information is encoded onto photographic film by placing an optical grating between the light-emitting scintillating screen and the photographic emulsion. Information at different energies is...
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4394737 |
Method of processing radiographic image
In radiography, a plurality of radiographic films are used for recording radiographic images of an object viewed from the same direction. For instance, a stack of radiographic films stacked...
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4382184 |
Apparatus and method for simultaneously displaying relative displacements of a fluctuating biological object
X-ray apparatus and method for producing discrete images of a human organ in fluctuating motion, e.g., the heart and related vessels. Each image is derived at a selected time related to the cardiac...
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