Patent application number | Description | Published |
20080237481 | Corrosion barrier layer for photoconductive X-ray imagers - Improved corrosion resistance for direct X-ray imaging detectors is obtained by providing a pixelated, electrically conductive barrier layer between the X-ray sensitive material and the pixel electrodes. Each barrier layer can cover part or all of its corresponding pixel electrode. In cases where pixel electrodes makes contact to underlying circuitry through vertical vias, it is preferred for the barrier layers to cover the via sections of the pixel electrodes. The barrier layers for each pixel electrode can be spaced apart from each other, or they can all be included within a continuous film on top of the pixel electrodes. Such a continuous film can be pixelated by spatially modulating its properties (e.g., thickness, doping) to significantly reduce lateral conductivity from pixel to pixel. | 10-02-2008 |
20090087045 | CANCER DETECTION, DIAGNOSIS, STAGING, TREATMENT PLANNING, DELIVERY, AND MONITORING USING X-RAY ATTENUATION COEFFICIENT DISTRIBUTIONS - A method of analyzing a volumetric data set obtained by an imaging system from an object is provided includes defining a first region of interest comprising a population of voxels of a first tissue part of the object to obtain a first distribution of radiation attenuation coefficient values, defining a second region of interest comprising a sample of voxels of a second tissue part of the object to obtain a second distribution of radiation attenuation coefficient values, and distinguishing the second tissue from the first tissue using the properties of the first and second distributions of radiation attenuation coefficients. | 04-02-2009 |
20090190714 | Methods, Apparatus, and Computer-Program Products for Increasing Accuracy in Cone-Beam Computed Tomography - Disclosed are methods, systems, and computer-product programs for increasing accuracy in cone-beam computed tomography. | 07-30-2009 |
20100069742 | Systems and Methods for Tracking and Targeting Object in a Patient Using Imaging Techniques - A method for use in a medical procedure includes obtaining a contrast-enhanced image of a portion of a patient, the portion of the patient having an object, obtaining a non-contrast-enhanced image of the portion, wherein the contrast-enhanced image and the non-contrast-enhanced image are created at different times, and determining a position of the object using the contrast-enhanced image and the non-contrast-enhanced image. A method for use in a medical procedure includes obtaining a contrast-enhanced image of a portion of a patient, the portion of the patient having an object, obtaining a non-contrast-enhanced image of the portion, and determining a position of the object using the contrast-enhanced image and the non-contrast-enhanced image, wherein the act of determining the position is performed is substantially real time. | 03-18-2010 |
20110133094 | MULTI-ENERGY RADIATION DETECTOR - A radiation projection detector includes a conversion layer configured to generate light photons in response to a radiation, the conversion layer having a plurality of first conversion elements and a plurality of second conversion elements, and a photo detector array aligned with the conversion panel, wherein each of the first conversion elements has a first radiation conversion characteristic, and each of the second conversion elements has a second radiation conversion characteristic. A radiation projection detector includes a photoconductor layer configured to generate charges in response to radiation, the photoconductor layer having a plurality of first photoconductor elements and a plurality of second photoconductor elements, and a detector array aligned with the photoconductor layer, wherein each of the first photoconductor elements has a first charge generating characteristic, and each of the second photoconductor elements has a second charge generating characteristic. | 06-09-2011 |
20110299652 | METHODS, APPARATUS, AND COMPUTER-PROGRAM PRODUCTS FOR INCREASING ACCURACY IN CONE-BEAM COMPUTED TOMOGRAPHY - Disclosed are methods, systems, and computer-product programs for increasing accuracy in cone-beam computed tomography. | 12-08-2011 |
20130071333 | METHOD AND SYSTEM FOR IDENTIFYING, ASSESSING, AND MANAGING CANCER GROWTH RATES AND POTENTIAL METASTASIS - Techniques described herein generally relate to identifying, assessing, and managing cancer growth rates and potential metastasis. Some example methods may include constructing one or more quantitative metrics for the potential metastasis in a selected population of other patients, acquiring a first set of numeric biomarker data for the patient before having placed a biomarker in the patient, acquiring a second set of numeric biomarker data for the patient after having placed the biomarker in the patient, determining a set of biomarker surrogate values for microvessel density information based on a mean numeric biomarker difference derived from the first set of numeric biomarker data and the second set of numeric biomarker data, determining a set of biomarker surrogate values for microvessel density information based on a mean numeric biomarker difference derived from the first set of numeric biomarker data and the second set of numeric biomarker data, and predicting quantitative and objective risk for the cancer growth rates and potential metastasis and adjusting a treatment plan based on the biomarker surrogate values and at least one of the one or more quantitative metrics. | 03-21-2013 |
20130071334 | METHOD AND SYSTEM FOR IDENTIFYING, ASSESSING, AND MANAGING CANCER DISEASE - Techniques described herein generally relate to identifying, assessing, and managing cancer diseases. Some example methods may include constructing one or more quantitative metrics for the cancer disease in a selected population of other patients retrieved during the scheduling interval, acquiring a first set of numeric biomarker data for the patient before having placed a biomarker in the patient, acquiring a second set of numeric biomarker data for the patient after having placed the biomarker in the patient, identifying one or more nodules from the first set of numeric biomarker data and the second set of numeric biomarker data, wherein each of the one or more nodules is characterized by a mean numeric biomarker difference value derived from the first set of numeric biomarker data and the second set of numeric biomarker data, and predicting quantitative and objective risk for the one or more nodules based on the mean numeric biomarker difference value and at least one of the one or more quantitative metrics. | 03-21-2013 |
20140348288 | EBEAM TOMOSYNTHESIS FOR RADIATION THERAPY TUMOR TRACKING - A system for tracking tumors during radiotherapy for interleaving treatment pulses with imaging pulses is disclosed. The system includes a multisource scanning eBeam X-ray tube having a plurality of focal spots. The X-ray tube is configured to emit X-rays in a plurality of different locations on a target by sequentially emitting the X-rays to the focal spots in the plurality of focal spots. This is done such that the X-rays can be emitted to the plurality of different locations without substantially moving the X-ray tube or the target. The system further includes an imager panel configured to act as the target and configured to receive the X-rays from the focal spots of the X-ray tube. The system further includes a tomosynthesis reconstruction module configured to process output from the imager panel to construct an image. | 11-27-2014 |
20140353513 | UNIVERSAL KV-MV IMAGERS - An x-ray imaging device may include a detector array and an x-ray converting layer coupled to the detector array. The detector array and the x-ray converting layer may be configured such that x-rays traverse the detector array before propagating in the x-ray converting layer. The x-ray imaging device may also include a buildup layer behind the x-ray converting layer. The x-ray imaging device may be used as a “universal” imager for both MV and kV imaging. | 12-04-2014 |